Following Foveon?

Xerox PARC and Research Center Jülich, Germany, presented a color "vertical sensor" without Bayer color filter array (Optics.org).
Very much like Foveon, the vertically integrated sensor works by detecting color information as a function of depth. However, the sensor materials are different: Blue light is absorbed by the top diode and green and red wavelengths pass through to silicon carbon and amorphous silicon absorption layers below. The vertical sensors should be deposited on top of CMOS readout electronics.