通过修改font的line_width就可以修改版图中text字体的粗细：

代码如下：

from si_fab import all as pdk
import ipkiss3.all as i3

class demo(i3.PCell):
    class Layout(i3.LayoutView):
        def _generate_elements(self, elems):
            elems += i3.PolygonText(layer=i3.TECH.PPLAYER.TEXT,
                                    coordinate=(0.0, 0.0),
                                    text="FUDAN",
                                    alignment=(i3.TEXT.ALIGN.CENTER, i3.TEXT.ALIGN.TOP),
                                    font=i3.TEXT.FONT.STANDARD.modified_copy(line_width=0.01),
                                    height=40,
                                    )
            return elems

layout = demo().Layout()
layout.visualize()

字体的宽度为：height*line_width