发明申请
US20080179644A1 CMOS image sensor with drive transistor having asymmetry junction region 审中-公开
具有驱动晶体管的CMOS图像传感器具有不对称结区域

CMOS image sensor with drive transistor having asymmetry junction region
摘要:
An image sensor includes a photosensitive device and a drive transistor for generating an electrical signal from charge accumulated in the photosensitive device. The drive transistor includes a source region of a first conductivity type and an asymmetry junction region abutting a portion of the source region and being of a second conductivity type that is opposite of the first conductivity type. The drive transistor is biased such that the asymmetry junction region reduces an effective channel length of the drive transistor.
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