=
468 lines
20 KiB
Python
468 lines
20 KiB
Python
from typing import Any, Optional
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import nazca as nd
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import numpy as np
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from ..geometry import *
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from ...technologies import *
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from ..basic import __cell_arg__
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class ISL:
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def __init__ (self,xs: str,width: float,length: float,Lmax: int=10,spacing: float=11,sp_isl_metal: int=5,sp_isl_wg: int=5,rc_radius: int = 0,rc_points: int=64) -> None:
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self.xs = xs
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self.width = width
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self.length = length
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self.Lmax = Lmax
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self.spacing = spacing
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self.sp_isl_metal = sp_isl_metal ## this is the DRC of isolation xs to other xs
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self.sp_isl_wg = sp_isl_wg ## this is the DRC of isolation xs to other xs
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self.rc_radius = rc_radius ## this is the DRC of isolation xs to other xs
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self.rc_points = rc_points ## this is the DRC of isolation xs to other xs
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with nd.Cell(instantiate=False) as C:
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for layers,growx,growy,acc in nd.layeriter(xs=xs):
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(a1,b1), (a2,b2),c1,c2 = growx
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if (b1==0 and b2==0):
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if (Lmax!=None and spacing!=0):
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X_isl = 0
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while(1):
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if ((length-X_isl)<Lmax and (length-X_isl)>0):
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nd.strt(length=(length-X_isl),width=width,layer=layers).put(X_isl,0,0)
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break
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elif ((length-X_isl)<=0):
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break
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nd.strt(length=Lmax,width=width,layer=layers).put(X_isl,0,0)
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X_isl = X_isl+Lmax+spacing
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else :
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if (rc_radius>0):
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strt_round_courner(length=length*(a1-a2)+(b1-b2),width=width*(a1-a2)+(b1-b2),layer=layers,radius=rc_radius,n_points=rc_points).cell.put(0,0,0)
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else:
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nd.strt(length=length*(a1-a2)+(b1-b2),width=width*(a1-a2)+(b1-b2),layer=layers).put(-(b1-b2)/2,0,0)
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else :
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nd.strt(length=length*(a1-a2)+(b1-b2),width=width*(a1-a2)+(b1-b2),layer=layers).put(-(b1-b2)/2,0,0)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='a1').put(0,0,180)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='opt_a1').put(0,0,180)
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nd.Pin(name='ele_a1',type="electrical:").put(0,0,180)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='b1').put(length,0,0)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='opt_b1').put(length,0,0)
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nd.Pin(name='ele_b1',type="electrical:").put(length,0,0)
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self.cell = C
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""" Internal Logic revised """
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class Vias:
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def __init__ (self,xs:str,
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area:'float|list',
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sz:'float|list',
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spacing:'float|list',
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name : str = None,
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xs_l1:str=None,
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xs_l2:str=None,
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# l1_tail:float=0,
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# l2_tail:float=0,
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instantiate: bool = False,
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sp_via_xs: float = 0.2, ## spacing of via layer and others
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via_cell: Any = None,
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show_pins: bool=False) -> None:
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"""_summary_
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Args:
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xs (str): via xsection, if None, no VIA holes will be added
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area (float|list): the total size of the VIA area
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sz (float|list): size of the VIA holes
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spacing (float|list): edge spacing of the VIA holes
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xs_l1 (str, optional): the xsection of the VIA connects
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xs_l2 (str, optional): the xsection of the VIA connects
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l1_tail (float, optional): the expansion length in xsection 1
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l2_tail (float, optional): the expansion length in xsection 2
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"""
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# if (name!=None):
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# self.instantiate = True
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# else :
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# self.instantiate = False
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self.name = name
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self.instantiate = instantiate
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if (isinstance(sz,int) or isinstance(sz,float)):
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sz = [sz,sz]
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self.sz = sz
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if (isinstance(spacing,int) or isinstance(spacing,float)):
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spacing = [spacing,spacing]
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self.spacing = spacing
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if (isinstance(area,int) or isinstance(area,float)):
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area = [area,area]
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self.area = area
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if(xs!=None):
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try:
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nd.get_xsection(xs)
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except:
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print("==eic::eic_units::via::xs_via::",xs," not defined in tapeout")
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xs = None
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self.xs = xs
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self.sp_via_xs = sp_via_xs
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if (isinstance(sp_via_xs,int) or isinstance(sp_via_xs,float)):
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self.sp_via_edge = [sp_via_xs,sp_via_xs]
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else:
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self.sp_via_edge = sp_via_xs
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szVia = np.zeros(np.shape(self.sz))
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""" Revised in 2025.08.10 """
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""" Previou self.szVia = self.sz """
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""" Previous version will cause influenc to self.sz """
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if (self.sz[0]==0 or self.sz==None or self.sz[1]==0):
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szVia[0] = self.area[0]-self.sp_via_edge[0]*2
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szVia[1] = self.area[1]-self.sp_via_edge[1]*2
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else:
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szVia[0] = self.sz[0]
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szVia[1] = self.sz[1]
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self.szVia = szVia
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""" Initiating parameters """
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self.xs_l1 = xs_l1
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self.xs_l2 = xs_l2
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self.instantiate = instantiate
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## using below can avoid renaming cells
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self.via = None
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if (via_cell==None):
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if (xs!=None and self.instantiate==True):
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try :
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self.via = nd.get_Cell(name=xs)
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except:
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with nd.Cell(name=xs,instantiate=instantiate) as viaCell:
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if (self.xs!=None):
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nd.strt(length=self.szVia[0],width=self.szVia[1],xs=xs).put(-self.szVia[0]/2,0,0)
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self.via = viaCell
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else :
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with nd.Cell(instantiate=False) as viaCell:
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if (self.xs!=None):
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nd.strt(length=self.szVia[0],width=self.szVia[1],xs=xs).put(-self.szVia[0]/2,0,0)
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self.via = viaCell
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else :
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self.via = via_cell
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self.show_pins = show_pins
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self.cell = self.generate_gds()
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def generate_gds(self):
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with nd.Cell(instantiate=self.instantiate,name=self.name) as C:
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""" For AMF, only one via allowed """
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via_period_x = self.szVia[0] + self.spacing[0]
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num_x = int(np.floor((self.area[0]-self.sp_via_edge[0])/via_period_x))
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via_period_y = self.szVia[1] + self.spacing[1]
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num_y = int(np.floor((self.area[1]-self.sp_via_edge[1])/via_period_y))
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### Cutting into small segments to place faster
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n_unit = 15
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ny_sects = num_y//n_unit
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res_y = np.mod(num_y,n_unit)
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nx_sects = num_x//n_unit
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res_x = np.mod(num_x,n_unit)
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# print(num_x,num_y,nx_sects,ny_sects)
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offset_Y = res_y/2*via_period_y
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offset_X = res_x/2*via_period_x
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if (self.xs!=None):
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if (self.instantiate):
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""" This is used for IMEC and CUMEC with their via are small holes """
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""" Adding vias by Big-Little segments """
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if (nx_sects>0 and ny_sects>0):
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try :
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seg_full = nd.get_Cell(name=self.xs+'_'+str(n_unit)+'x'+str(n_unit))
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except:
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with nd.Cell(name=self.xs+'_'+str(n_unit)+'x'+str(n_unit),instantiate=self.instantiate) as seg_full:
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for _idx_x_ in range(0,n_unit):
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for _idx_y_ in range(0,n_unit):
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self.via.put((_idx_x_-(n_unit-1)/2)*via_period_x,(_idx_y_-(n_unit-1)/2)*via_period_y,0)
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for idx_x_seg in range(0,nx_sects):
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for idx_y_seg in range(0,ny_sects):
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seg_full.put((idx_x_seg-(nx_sects-1)/2)*via_period_x*n_unit -offset_X ,
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(idx_y_seg-(ny_sects-1)/2)*via_period_y*n_unit -offset_Y,0)
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if (nx_sects>0 and res_y>0):
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try :
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seg_x = nd.get_Cell(name=self.xs+'_'+str(n_unit)+'x'+str(res_y))
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except:
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with nd.Cell(name=self.xs+'_'+str(n_unit)+'x'+str(res_y),instantiate=self.instantiate) as seg_x:
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for _idx_x_ in range(0,n_unit):
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for _idx_y_ in range(0,res_y):
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self.via.put((_idx_x_-(n_unit-1)/2)*via_period_x,(_idx_y_ - (res_y-1)/2)*via_period_y,0)
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for idx_x_seg in range(0,nx_sects):
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seg_x.put((idx_x_seg-(nx_sects-1)/2)*via_period_x*n_unit - offset_X,
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(ny_sects)*via_period_y*n_unit/2,0)
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if (ny_sects>0 and res_x>0):
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try :
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seg_y = nd.get_Cell(name=self.xs+'_'+str(res_x)+'x'+str(n_unit))
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except:
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with nd.Cell(name=self.xs+'_'+str(res_x)+'x'+str(n_unit),instantiate=self.instantiate) as seg_y:
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for _idx_x_ in range(0,res_x):
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for _idx_y_ in range(0,n_unit):
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self.via.put((_idx_x_ - (res_x-1)/2)*via_period_x,(_idx_y_-(n_unit-1)/2)*via_period_y,0)
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for idx_y_seg in range(0,ny_sects):
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seg_y.put((nx_sects)*via_period_x*n_unit/2,
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(idx_y_seg-(ny_sects-1)/2)*via_period_y*n_unit - offset_Y,0)
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if (res_y>0 and res_x>0):
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try :
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res = nd.get_Cell(name=self.xs+'_'+str(res_x)+'x'+str(res_y))
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except:
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with nd.Cell(name=self.xs+'_'+str(res_x)+'x'+str(res_y),instantiate=self.instantiate) as res:
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for _idx_x_ in range(0,res_x):
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for _idx_y_ in range(0,res_y):
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self.via.put((_idx_x_-(res_x-1)/2)*via_period_x,(_idx_y_ - (res_y-1)/2)*via_period_y,0)
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res.put((nx_sects)*via_period_x*n_unit/2,
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(ny_sects)*via_period_y*n_unit/2,0)
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else:
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self.via.put(0,0,0)
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if (self.xs_l1!=None):
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nd.strt(length=self.area[0],width=self.area[1],xs=self.xs_l1).put(-self.area[0]/2,0,0)
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# if (l1_tail!=0):
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# nd.strt(length=l1_tail+self.area[0]/2,width=self.area[1],xs=self.xs_l1).put(0,0,0)
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if (self.xs_l2!=None):
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nd.strt(length=self.area[0],width=self.area[1],xs=self.xs_l2).put(-self.area[0]/2,0,0)
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# if (l2_tail!=0):
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# nd.strt(length=l2_tail+self.area[0]/2,width=self.area[1],xs=self.xs_l2).put(0,0,180)
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nd.Pin('a0',io=0,width=self.area[0]).put(0,0,0)
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nd.Pin('b0',io=1,width=self.area[1]).put(-0,0,180)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin('a1',io=0,width=self.area[0]).put(self.area[0]/2,0,0)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin('opt_a1',io=0,width=self.area[0]).put(self.area[0]/2,0,0)
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nd.Pin('ele_a1',io=0,width=self.area[0],type="electrical:").put(self.area[0]/2,0,0)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin('b1',io=1,width=self.area[1]).put(-self.area[0]/2,0,180)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin('opt_b1',io=1,width=self.area[1]).put(-self.area[0]/2,0,180)
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nd.Pin('ele_b1',io=1,width=self.area[1],type="electrical:").put(-self.area[0]/2,0,180)
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if (self.show_pins):
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nd.put_stub()
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return C
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class PAD :
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def __init__(
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self,
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name: Optional[str]=None,
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xs_pad:str='pad',
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length:float=80,
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width:float=60,
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edge:float=5,
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show_pins: bool=False
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) -> None:
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self.name = name
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if (name==None):
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self.instantiate = False
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else :
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self.instantiate = True
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self.xs_pad = xs_pad
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self.length = length
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self.width = width
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self.edge = edge
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self.show_pins = show_pins
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self.cell = self.generate_gds()
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def generate_gds(self) :
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with nd.Cell(instantiate=self.instantiate,name=self.name) as ICell :
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for layers,growx,growy,acc in nd.layeriter(xs=self.xs_pad):
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(a1,b1), (a2,b2),c1,c2 = growx
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_L_ = self.length*(a1-a2)+(b1-b2)
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_W_ = self.width*(a1-a2)+(b1-b2)
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nd.strt(length=_L_,width=_W_,layer=layers).put(0,-_L_/2,90)
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nd.Pin(name='p1',width=self.width).put(0,0,90)
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if (self.show_pins):
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nd.put_stub(pinsize=3)
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return ICell
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class PADs :
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def __init__(
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self,
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pad: Any,
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num : int,
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rows:int=1,
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x_spacing:float=100,
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y_spacing:float=120,
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row_offset:float=50,
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show_pins: bool=False,
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cross_naming: bool = True,
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absent: list = [],
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) -> None:
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self.num = num
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## Revised by QY in 2023.1.3
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## self.pad = pad
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self.pad = __cell_arg__(arg=pad,arg_name="pad",func_name="mxpic::eic::PADs")
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self.rows = rows
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self.x_spacing = x_spacing
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self.y_spacing = y_spacing
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self.row_offset = row_offset
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self.show_pins = show_pins
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self.cross_naming = cross_naming
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self.absent = absent
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self.cell = self.generate_gds()
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def generate_gds(self) :
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with nd.Cell(instantiate=False) as ICell :
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idx = np.linspace(0,self.num-1,self.num)
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row_idx = np.linspace(0,self.rows-1,self.rows)
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for _row_ in row_idx :
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for _idx_ in idx :
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if (self.cross_naming):
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pin_idx = _idx_*self.rows+_row_+1
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else:
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pin_idx = _idx_+_row_*self.num+1
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if (pin_idx in self.absent):
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continue
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instr = self.pad.put(
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'p1',
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_idx_*self.x_spacing+self.row_offset*_row_,
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-_row_*self.y_spacing,
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-90
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)
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instr.raise_pins(['p1'],['p'+str(int(pin_idx))])
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# nd.Pin(
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# name='p'+str(int(pin_idx)),
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# width=
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# ).put(
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# _idx_*self.x_spacing+self.row_offset*_row_,
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# -_row_*self.y_spacing,
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# 90
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# )
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if self.show_pins :
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nd.put_stub()
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return ICell
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class Vias_arc:
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def __init__(self,
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R: float=10,
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w: float=3,
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theta_start: float=0,
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theta_stop: float = 90,
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xs: str = 'via_s2m',
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sz:'float|list'=0.5, ## if sz = 0, the area will be filled with layer via
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spacing:'float|list'=0.8,
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sp_via_xs:float=0.2,
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xs_l1:str='sa',
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xs_l2:str='metal',
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res: float = 0.5, ## resolution
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via_cell: Any = None,
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show_pins: bool=False
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) -> None:
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if (isinstance(sz,int) or isinstance(sz,float)):
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sz = [sz,sz]
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if (isinstance(spacing,int) or isinstance(spacing,float)):
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spacing = [spacing,spacing]
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if (via_cell==None):
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try :
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via = nd.get_Cell(name=xs)
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except:
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with nd.Cell(name=xs) as via:
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nd.strt(length=sz[0],width=sz[1],xs=xs).put(-sz[0]/2,0,0)
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else :
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via = via_cell
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with nd.Cell(instantiate=False) as C:
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L_arc = R*np.abs(theta_start-theta_stop)/180*pi ## length of arc in um
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n_points = int(np.abs(np.round(L_arc/res))+1)
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if (xs_l1!=None):
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circle(radius=R,width=w,theta_start=theta_start,theta_stop=theta_stop,xs=xs_l1,res=res,
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# n_points=n_points
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).cell.put(0,0,0)
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if (xs_l2!=None):
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circle(radius=R,width=w,theta_start=theta_start,theta_stop=theta_stop,xs=xs_l2,res=res,).cell.put(0,0,0)
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if (sz[0]>0 and sz[1]>0):
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rows = int(np.floor((w-max(spacing))/(max(sz) +max(spacing)))) ## maximum rows in radius direction
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for r_idx in range(0,rows):
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R_cur = R - (r_idx-(rows-1)/2)*(max(sz) +max(spacing))
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nums = abs(int(np.floor(((R_cur-max(spacing))*np.abs(theta_stop-theta_start)*pi/180)/(max(sz) +max(spacing)))))
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# print("nums:: ",nums) 2022.11.27 DEBUG
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angle = np.linspace(theta_start/180*pi+(max(spacing)/R_cur+max(sz)/R_cur),theta_stop/180*pi-(max(spacing)/R_cur+max(sz)/R_cur),nums)
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for n_idx in range(0,nums):
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x = R_cur * np.cos(angle[n_idx])
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y = R_cur * np.sin(angle[n_idx])
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via.put(x,y,0)
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# nd.strt(width=sz[1],length=sz[0],xs=xs).put(x-sz[0]/2,y,0)
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else :
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R_cur = R
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w_via = w-2*sp_via_xs
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A_start = theta_start/180*pi+((np.max(sp_via_xs)+w_via/2)/R_cur)
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A_stop = theta_stop/180*pi-((np.max(sp_via_xs)+w_via/2)/R_cur)
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circle(radius=R_cur,width=w_via,theta_start=A_start/pi*180,theta_stop=A_stop/pi*180,xs=xs,res=res,
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).cell.put(0,0,0)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='b1').put(R*np.cos(theta_stop/180*pi),R*np.sin(theta_stop/180*pi),90+theta_stop)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='opt_b1').put(R*np.cos(theta_stop/180*pi),R*np.sin(theta_stop/180*pi),90+theta_stop)
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nd.Pin(name='ele_b1',type="electrical:").put(R*np.cos(theta_stop/180*pi),R*np.sin(theta_stop/180*pi),90+theta_stop)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='a1').put(R*np.cos(theta_start/180*pi),R*np.sin(theta_start/180*pi),-90+theta_start)
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## revised in 2026.06.07 by Qin Yue
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# legacy: nd.Pin(name='opt_a1').put(R*np.cos(theta_start/180*pi),R*np.sin(theta_start/180*pi),-90+theta_start)
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nd.Pin(name='ele_a1',type="electrical:").put(R*np.cos(theta_start/180*pi),R*np.sin(theta_start/180*pi),-90+theta_start)
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A_mid = (theta_start+theta_stop)/2
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nd.Pin(name='c1').put(R*np.cos(A_mid/180*pi),R*np.sin(A_mid/180*pi),A_mid)
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if (show_pins):
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nd.put_stub()
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|
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self.cell = C
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