Package: wafer-map
wafer_mapPlots up a wafer map. Used in semiconductor processing and analysis.ContentsFeaturesInstallationRequirementsWhat's it Look Like?UsageExampleNomenclatureKeyboard Shortcuts and Mouse UsageNotesCurrent capabilitiesChangelogFeaturesMouse 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!InstallationInstall from PyPI.pip install wafer_mapRequirementswafer_map requires the following non-built-in packages:wxPython PhoenixIf installing on Windows or Mac, use the wheels found at thePhoenix
snapshot builds.numpycolourand the following core (built-in) packages:mathcolorsysWhat'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:UsageI still need to fill this out in detail.The easiest way to use this to to:Import thewm_appmodule:>>>importwm_appSet 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...]Callwm_app.WaferMapApp.>>>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 thanedge_excl.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.ExampleThere 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 runexample.pyin your cmd prompt
or terminal:python example.pyExample.pygenerates a fake data set and then displays it in 3
different ways: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.NomenclatureFor 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).coordinateFloating-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.gridInteger 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.grid_centerThe(float_x, float_y)tuple which is coincident with the
wafer's center coordinate(0, 0).This is the onlygridvalue that can be made up of floats.rowAlias forgrid_y.colAlias forgrid_x.Keyboard Shortcuts and Mouse UsageNo 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.HomeZoom to full waferOToggle display of wafer and exclusion outlineCToggle crosshair displayLToggle legend displayNotesThis package has been released to version 1.0.0. What this means is that itshouldbe 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:https://github.com/dougthor42/wafer_map/milestonesThere's still a fair amount of code cleanup and refactoring to do, especially
on thewm_legend.pymodule (as that was made last). So please do judge my
coding style too harshly (though constructive criticism is much appreciated!)Requires: wxPythonCurrent capabilitiesDraw 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 valueLegend Display for both continuous and discrete dataChangelogSeeCHANGELOG.md.