Sunday, July 24, 2011
Himax Imaging Works on Small Pixel BSI Designs
According to the patent application US20110169055, Himax Imaging works on BSI pixel design. The company proposes non-self-aligned transfer gate on top of pinning layer to achieve low image lag and dark current. Also, the application says that "BSI red response may be boosted by forming reflection layers by the extended transfer gate poly on top of PD".
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it's really a good idea !
ReplyDelete-yang ni
Why is the dark current lower in this case?
ReplyDeleteBecause the PD edge part is better protected deep under the transfer gate.
ReplyDelete