代码收藏家技术教程 2024-07-11

使用Python编写自定义结构的GDS文件

1. 安装gdspy库

gdspy · PyPIhttps://pypi.org/project/gdspy/注意：

## Installation

### Dependencies:

[Python](Welcome to Python.org) (tested with versions 2.7, 3.6, 3.7, and 3.8)

[Numpy](http://numpy.scipy.org/)

C compiler (needed only if built from source)

Tkinter (optional: needed for the LayoutViewer GUI)

[Sphinx](Welcome — Sphinx documentation) (optional: to build the documentation)

Python版本只支持2.7, 3.6, 3.7, and 3.8。我试了3.9不成功。

2. 在光刻前需要把自己设计的结构转换为GDS文件，这里我设计的是矩形，你也可以设置任何结构。官方文档说明API Reference — gdspy 1.6.13 documentationhttps://gdspy.readthedocs.io/en/stable/reference.html#rectangle

import gdspy
import scipy.io as io
import numpy as np
dataFile1 = r'结构数据文件'
data_dic1 = io.loadmat(dataFile1)

pr_outputs = (data_dic1['结构变量名'])*1e6
X_mask = (data_dic1['X方向坐标'])*1e6
Y_mask = (data_dic1['Y方向坐标'])*1e6

# The GDSII file is called a library, which contains multiple cells.
lib = gdspy.GdsLibrary()

# Geometry must be placed in cells.
cell = lib.new_cell('FIRST')
ld_fulletch = {"layer": 1, "datatype": 3}
# Create the geometry (a single rectangle) and add it to the cell.
a = 0
for i in range(len(X_mask)):
    for j in range(len(Y_mask)):
        rect = gdspy.Rectangle((X_mask[j][i]-pr_outputs[a][0]/2, Y_mask[j][i]-        
        pr_outputs[a][1]/2), (X_mask[j][i]+pr_outputs[a][0]/2, Y_mask[j][i]+pr_outputs[a][1]/2), **ld_fulletch)
#设置每个结构的旋转角度
               #rect.rotate(pr_outputs[a][2], (X_mask[j][i]+pr_outputs[a][0]/2, Y_mask[j][i]+pr_outputs[a][1]/2))
        cell.add(rect)
        a += 1
# Save the library in a file called 'first.gds'.
lib.write_gds('first.gds')

# Optionally, save an image of the cell as SVG.
cell.write_svg('first.svg')

# Display all cells using the internal viewer.
gdspy.LayoutViewer()

3. 效果如下图所示

4. 用常见的Klayout或者L-Edit软件打开进行查看修改