Here's a old defective test chip (note the solder ball gouges) with a modified THK KR20 rail (thanks Peter) and a Vivitar Komine 135mm @ f4 (thanks Lou) and Mitutoyo 5X. I run the THK rail from Zerene with a Stackshot controller (made a special adapter cable). For starters this was 98 steps at 25 micron steps, stacked with Zerene.
Best,
Mike
Defective Chip Image with New Rail
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Chip
I really love your oblique images of chips.
Mike
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
Thanks Mike.
Wish there was a way to show a higher res image, they look much better at 5~10MB JPEGs.
Doesn't show well at this resolution, but if you look closely (left of center) you can see the gouged solder balls (~100um dia), result of an over zealous technician and thus a defective chip!!
Best,
Mike
Wish there was a way to show a higher res image, they look much better at 5~10MB JPEGs.
Doesn't show well at this resolution, but if you look closely (left of center) you can see the gouged solder balls (~100um dia), result of an over zealous technician and thus a defective chip!!
Best,
Mike