Started Jul 17, 2010 | Discussions thread
Ehrik Veteran Member • Posts: 8,014
backside illuminated

safaridon wrote:

Good catch about CMOS, but where did you read that it was back-illuminated?

For BI to work most efficiently the tighter the pixels are packed the better

I don't think you got that quite right.

When pixels get very small, they start to lose too much quantum efficiency and BSI (that's the usual abbreviation) is supposed to reduce this loss of quantum efficiency. With bigger pixels BSI doesn't do much, but that's because the bigger pixels don't lose much to begin with.

hence why Pany went for increasing to 15 mp.

I think they did it to have less aliasing, possibly more resolution, and - of course - marketing.
Just my two öre,
Erik from Sweden

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