This was a merge of two duplicate pages, messy…

Source

eBay seller mlsolar

Wafer

overview.jpg

Misc markings:

Small lettering on the lower left:

OK21.0B0

Large lettering bottom:

6-2807A 8A31099 13

Die

die_edge_mit20x.jpg

Label

(M)
2005
28079-NN
MICREL

Map

Die @ Mit20x

Test pattern

Label

  
TCC051
TMC05A
HRES
09X0.5
15X.45

Map

Test pattern @ Mit20x

Large test pattern

Looks a lot like GCA Autostep 200 INSITU alignment marks: http://www.cnf.cornell.edu/cnf_process_photo_step_align.html

Downloadable GDS of the alignment patterns are at http://ssel-sched.eecs.umich.edu/wiki/GetFile.aspx?Page=Public.GCA%20AS200%20AutoStep&File=GCA%20Alignment%20Marks.zip.

Not quite identical, though - the AS200 has ten lines in each set and this one looks more like 15. The AS200 pattern also omits the central cross. Perhaps another GCA stepper with a slightly different firmware version?

test2_0_mit20x.jpg test2_1_mit20x.jpg test2_2_mit20x.jpg test2_3_mit20x.jpg test2_4_mit20x.jpg

 
mcmaster/micrel/6-2807a_8a31099_13.txt · Last modified: 2015/01/04 17:50 (external edit)
 
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