Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal
Reexamination Certificate
2011-05-10
2011-05-10
Lee, Hsien-ming (Department: 2823)
Semiconductor device manufacturing: process
Making device or circuit responsive to nonelectrical signal
C438S059000, C257S233000, C257S292000, C257SE25032
Reexamination Certificate
active
07939357
ABSTRACT:
An active pixel using a photodiode with multiple species of P type dopants is disclosed. The pixel comprises a photodiode formed in a semiconductor substrate. The photodiode is a P−region formed within an N-type region. The P−region is formed from an implant of boron and an implant of indium. Further, the pixel includes a transfer transistor formed between the photodiode and a floating node and selectively operative to transfer a signal from the photodiode to the floating node. Finally, the pixel includes an amplification transistor controlled by the floating node.
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Blakely , Sokoloff, Taylor & Zafman LLP
Lee Hsien-Ming
OmniVision Technologies Inc.
Swanson Walter H
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