Canon patent a large size ( APS-C or APS-H ) back-illuminated CMOS sensor, also known as backside illumination (BSI or BI), BSI sensors capture more light and gives better low light performance than the ordinary CMOS sensors.
Patent details / Translated by google
Canon is back-illuminated imaging device (BSI) to produce false signals (noise) to remove the patent is pending. APS-like noise becomes noticeable at least an imaging device C, you can solve various problems, APS-I may be back-illuminated imaging device is adopted in full size, and C.
Patent literature, self-interpretation and summary
- Patent Publication No. 2012-15275
- 2012.1.19 Release Date
- Filing date 2010.6.30
- Back-illuminated imaging device
- The two bonded substrates photoelectric conversion unit and the peripheral circuit manufacturing to
- Photoelectric conversion unit and the peripheral circuitmicroprocessor which is connected by bump
- The incident light is changed and the current strong influence to adjacent pixels in the peripheral circuit, and noise (similar to a smear phenomenon).
- Canon’s patented
- And a peripheral circuit connected to a DC power supply photoelectric conversion unit
- Resistance is lowered, reducing the voltage drop
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