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SemiGrind
Corporation is a wafer processing company which specializes
in the removal of silicon from the back of wafers following
conventional semiconductor processing. The company is
primarily engaged in thinning wafers for commercial semiconductor
wafer fabs.
Wafers are first laminated using an automatic Taper
made by Nitto-Denko. After inspection, they are placed
on a Disco 84X series infeed Grinder.
The appropriate grinder software program is then selected
to ensure the proper terminal thickness is guaranteed.
When all wafers have been processed, the lot is capacitance
measured to provide the customers' Certificate of Compliance.
After inspection, the wafers are detaped using Nitto-Denko
Detaping tool. Final outgoing inspection is then carried
out before the lot is prepared for shipment back to the
customer. |
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In addition
to the core business, SemiGrind has expanded it's capability to explore
ultra thin processing. 3M Corporation has installed their state-of-the-art
"Wafer Support System"(WWS)
in SemiGrind's cleanroom. The WSS acts to mount a processed wafer
to a 700 micron thick concentric glass disk using 3M adhesives. Subsequent
processing, i.e. thinning, stress relief, metallizations etc. can
then be performed on the thinned (less than 20 microns available)
wafer, nominally without fear of breakage. Finally, the wafer is automatically
Demounted
from the glass carrier and remounted onto UV dicing tape.
The addition of the 3M tool set provides Semigrind’s customers access
to state-of-the-art thinning technologies while additionally providing
post-thinning processing capabilities while maintaining mechanical
integrity. |
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