Semiconductor Wafer Mapping
Plots up a wafer map. Used in semiconductor processing and analysis.
- What's it Look Like?
- Mouse and keyboard shortcuts!
- Knows SEMI M1-0302 wafer sizes!
- You can change the colors!
- Zoom in and out!
- Use it in your own wxPython apps!
- View the die grid coords, absolute coords, and die value! (but only if you use the standalone app or if your app has a status bar).
- Center your map on the wafer however you want!
Install from PyPI.
pip install wafer_map
wafer_map requires the following non-built-in packages:
- If installing on Windows or Mac, use the wheels found at the Phoenix snapshot builds.
and the following core (built-in) packages:
What's it Look Like?
I know that I wouldn't want to use this if I didn't like how it looked, so here ya go. Take a look and decide for yourself if you like it.
Continuous Data being plotted as a stand-alone app:
Continuous Data as its own panel:
Discrete Data as its own panel:
I still need to fill this out in detail.
The easiest way to use this to to:
>>> import wm_app
Set up your data as a list of (grid_x, grid_y, value) tuples:
>>> data = [(grid_x_1, grid_y_1, data_1), # 1st die ... (grid_x_2, grid_y_2, data_2), # 2nd die ... (grid_x_3, grid_y_3, data_3) # 3rd die and so on ... ]
>>> wm_app.WaferMapApp(data, ... die_size, ... center_xy, ... dia, ... edge_excl, ... flat_excl)
The input parameters for WaferMapApp are:
- die_size: The die size in (x, y). Units are mm.
- center_xy: The grid (x, y) coordinate that represents the physical center of the wafer.
- dia: The wafer diameter. Units are in mm.
- edge_excl: The exclusion distance measured from the edge of the wafer. Units are in mm.
- flat_excl: The exclusion distance measured from the wafer flat.
Units are in mm. Cannot be less than
An image should appear. Yay! Play around with it: middle-click+drag to pan, scroll wheel to zoom. See "Keyboard Shortcuts and Mouse Usage" section.
There is an example file which somewhat demonstrates how to use this package. At the very least, you can run the example file and see how this wafer mapping software looks.
Navigate to the wafer_map directory in your python installtion
../Lib/site-packages/wafer_map) and run
example.py in your cmd prompt
Example.py generates a fake data set and then displays it in 3
- As a standalone app. This requires only calling a single function in your code.
- As a panel added to your own wx.Frame object. This allows you to add the wafer map to your own wxPython app.
- As a standalone app, but this time plotting discrete (rather than continuous) data.
For the entire project, the following nomenclature is used. This is to avoid confusion between a die's coordinates on the wafer (floating-point values representing the absolute postion of a die) and a die's grid location (integer row-column or x-y values that are sometimes printed on die).
- Floating-point value representing the exact location of a die on the wafer. Also sometimes called 'coord'
- The coordinate origin is the center of the wafer and the center of the FloatCanvas panel.
- Integer value representing the printed die. Can only be mapped to a coordinate if a grid_center is defined.
- Each grid line falls on a die's center.
(float_x, float_y)tuple which is coincident with the wafer's center coordinate
- This is the only
gridvalue that can be made up of floats.
- Alias for
- Alias for
- Alias for
- Alias for
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.
- Zoom to full wafer
- Toggle display of wafer and exclusion outline
- Toggle crosshair display
- Toggle legend display
This package has been released to version 1.0.0. What this means is that it
should be usable in an engineering-type environment. I'm starting to use
it heavily myself. It's not very customizable yet, but I don't need that
capability yet. You can see the roadmap at:
There's still a fair amount of code cleanup and refactoring to do, especially
wm_legend.py module (as that was made last). So please do judge my
coding style too harshly (though constructive criticism is much appreciated!)
- Draw wafer outline and flat or notch.
- Draw edge exclusion outline.
- Draw wafer center crosshairs.
- Accept continuous or discrete data and color accordingly.
- Provide zoom and pan capabilities.
- Mouse-over to display die coordinate and value
- Legend Display for both continuous and discrete data
Release history Release notifications | RSS feed
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
|Filename, size||File type||Python version||Upload date||Hashes|
|Filename, size wafer_map-1.1.2-py3-none-any.whl (51.2 kB)||File type Wheel||Python version py3||Upload date||Hashes View|
|Filename, size wafer_map-1.1.2.tar.gz (35.9 kB)||File type Source||Python version None||Upload date||Hashes View|
Hashes for wafer_map-1.1.2-py3-none-any.whl