Well, there you have it: the BSI gauntlet has been officially thrown. Sony just announced its own backside-illuminated CMOS sensor meant to rival OmniVision's achievement. Sony's sensor features 1.75 micron pixels totalling 5 effective megapixels capable of 60fps and offers low noise at twice the sensitivity of traditional sensors at the same pixel size. That's a signal to noise ratio of +8dB (+6dB sensitivity, -2dB noise), nerds. Nice Sony, but OmniVision's 8 megapixel sensor targeting cameraphones (Sony's is apparently targeting digital cameras and camcorders) brings the pixels down to 1.4 microns (with 0.9 micron pixels on the roadmap) albeit with an undisclosed SNR. Regardless, we look forward to seeing our friends' chemically-spiked club shots in excruciatingly slovenly detail later this year.

BSI, learn it -- it's shaping up to do for imaging what perpendicular did for magnetic storage.

Digital Camera 101: As manufacturers continue pushing the Megapixel Myth by stuffing more and more pixels onto rapidly shrinking sensors, the outcome is poor performance on top of poorly lit images of increasingly low quality. Now OmniVision, the largest CMOS image sensor manufacturer today, says they've solved the pixel size problem though backside illumination (BSI) technology. In essence, BSI helps maximize photon collection by circumventing obstructive metal and dielectric layers on the top-side of the sensor die. The result is improved light absorption, thinner overall camera modules, and increased sensitivity and F stops with reduced crosstalk. However, as EETimes' crack staff of Electrical Engineering super-nerds point out, BSI is not a new technology. In fact, several manufacturers lay claim to BSI patents. However, OmniVision seems to be the first to take the tech to mass production for consumers. To prove it, they'll release an 8 megapixel OmniBSI CameraChip sensor brimming with the new tech for sample in June. Couple it with a decent cameraphone lens and image processing circuitry and we might be in for a treat.