wafer-map 0.5.0

Semiconductor Wafer Mapping

Plots up a wafer map. Used in semiconductor processing and analysis.

Features

• Mouse and keyboard shortcuts!

• Knows SEMI M1-0302 wafer sizes!

• Something else!

Installation

Install from PyPI.

pip install wafer_map

Usage

Since I’m still making the package, the usage will change. Since no no documentation is better than wrong documentation, I’m leaving this section mostly barren until I hash things out.

What I can show you is the example.py file. Navigate to the wafer_map directory in your python installtion (../Lib/site-packages/wafer_map) and run example.py in your cmd prompt or terminal:

>>> python example.py

Example.py generates a fake data set and then displays it in 3 different ways:

1. As a standalone app. This requires only calling a single function in your code.

2. As a panel added to your own wx.Frame object. This allows you to add the wafer map to your own wxPython app.

3. As a panel added to your own wx.Frame object, but this time plotting discrete (rather than continuous) data.

Keyboard Shortcuts and Mouse Usage

No matter if you use the standalone app or add the panel to your own wx.Frame instance, keyboard shortcuts work. I’ve only added a few so far, but I plan on adding more.

The panel also supports mouse controls. Middle click will pan, mouse wheel will zoom in and out.

Home:

Zoom to full wafer

O:

Toggle display of wafer and exclusion outline

C:

Toggle crosshair display

L:

Toggle legend display

Notes

Currently in Alpha phase.

This package is currently undergoing a lot of modification. I’m using this to learn how to distribute things on PyPI and GitHub, so there will be a lot of quick updates. Sometimes it won’t work. Sometimes I’ll break things. Sometimes I’ll completely change the API.

This package is not attempting to modify any files or write any data, so using it in alpha phase should not cause any computer harm or data loss (unless I do something stupid).

Requires: wxPython

Data is input into the primary class WaferMap as a list of (x_coord, y_coord, data) tuples.

Expected capabilities:

1. Draw wafer outline and flat or notch.

2. Draw edge exclusion outline.

3. Draw wafer center crosshairs.

4. Accept continuous or discrete data and color accordingly.

5. Provide zoom and pan capabilities.

6. Mouse-over to display die coordinate and value

Changelog

• 0.5.0 / 2014-12-02

  • renamed wafer_map.py to wm_core.py.

  • Finally figured out the imports for running in development from my own dev directory vs running in “production” from the site-packages directory.

• 0.4.0 / 2014-12-02

  • Massive change to package hierarchy - separated app, frame, info, and fake data into individual modules.

• 0.3.0 / 2014-12-01

  • Added kb shortcuts and menu items for display toggle of wafer outline and crosshairs.

  • Added placeholder for legend and kb shortcut for display toggle.

  • Added option for plotting discrete data.

• 0.2.0 / 2014-11-26

  • Made it so a wafer map can be plotted with a single command.

  • Updated example.py to demo single-command usage.

• 0.1.0 / 2014-11-25

  • First working code. Added example file.

• 0.0.1 / 2014-11-25

  • Project Creation