Beginning in the 1940s, key aspects of thin film technology were developed at the RCA Laboratories.
Other pioneering and historic technology developments attributable to the RCA Laboratories and Sarnoff Corporation's David Sarnoff Research Center include development of the electron microscope, the photon-counting photomultiplier, the CCD imager, CMOS integrated circuit technology, and early optoelectronic components such as lasers and LEDs.