Sony announces industry smallest pixel size CCD in the recently published Cx_News vol. 60. 14.2MP ICX681SQW features 1.43um pixel, on par with the modern CMOS sensors in production. To improve the light collection efficiency Sony uses dual microlens:
Other notable features are reduced by 12% power consumption and 1/4 resolution mode for high sensitivity and high speed image capture (5.4fps at 3.55MP resolution).
Another Cx-News article digests Tomoyuki Suzuki, Sony SVP keynote at ISSCC 2010 on Image Sensor Evolution and the Future of Imaging.