Click here to see the SAS code.
Click here to see the example.

This silicon wafer map is described in detail in the following
internal ToolPool Paper.

For those of you who don't have access to the internal sas web, 
here is a summary description...

For SUGI 25, Motorola did an "applications development" paper (paper 44)
describing how they used sas 6.12 dsgi to graphically visualize their
wafer data (link to paper).  I wrote my own version of this using 
sas/graph's proc gmap and annotate.

First I create a sas/graph gmap data set.  It has 4 coordinates for each
'cell' in the wafer map.  Then I create an annotate data set for the grid.
I create some extra map cells for a legend/key (rather than using gmap's default
automatic legend/key) - this way I can get it to look exactly the way
I want it, and also some 'summary' cells along the sides of the map.

I use gmap's "html=" option to specify the variable that contains the
html charttip/flyover (title) text.  Drilldown info similarly be specified
using href.

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