The best image sensors come from Essex, UK, or so Electronics Weekly says. "Most of the image sensors in space or in ground-based astronomy are made here in Chelmsford," John Kemp, marketing and applications manager at e2v tells to the newspaper. Spacecraft Kepler, Solar Dynamics Observatory, NASA’s Curiosity Mars rover, Hubble space telescope, 1 Gigapixel Gaia camera, all use e2v sensors.
The company’s flagship CCD sensors are made in Chelmsford, Essex, UK on a bulk/epitaxial 6-inch process whose details are the result of 20 years of experience, and remain confidential. The CMOS sensors are made on outside fabs.