chip.py 文件源码

def make_wafer(self,wafer_r,frame,label,labelloc,labelwidth):
        """
        Generate wafer with primary flat on the left. From https://coresix.com/products/wafers/ I estimated that the angle defining the wafer flat to arctan(flat/2 / radius)
        """
        angled = 18
        angle = angled*np.pi/180
        circ = cad.shapes.Circle((0,0), wafer_r, width=self.boxwidth, initial_angle=180+angled, final_angle=360+180-angled, layer=self.layer_box)
        flat = cad.core.Path([(-wafer_r*np.cos(angle),wafer_r*np.sin(angle)),(-wafer_r*np.cos(angle),-wafer_r*np.sin(angle))], width=self.boxwidth, layer=self.layer_box)

        date = time.strftime("%d/%m/%Y")
        if labelloc==(0,0):
                    labelloc=(-2e3,wafer_r-1e3)
        # The label is added 100 um on top of the main cell
        label_grid_chip = cad.shapes.LineLabel( self.name + "  " +\
                                         date,500,position=labelloc,
                                         line_width=labelwidth,
                                         layer=self.layer_label)


        if frame==True:
            self.add(circ)
            self.add(flat)
        if label==True:
            self.add(label_grid_chip)