Semiconductor device and method of producing high contrast identification mark

摘要

A semiconductor device ( 50 ) includes a semiconductor die ( 20 ) having a first surface ( 14 ) for forming electronic circuitry. A coating layer ( 16 ) formed on a second surface ( 15 ) of the semiconductor die has a color that contrasts with the color of the semiconductor die. The coating layer is patterned to expose a portion of the second surface to reveal information pertaining to the semiconductor device. The coating layer is patterned by directing a radiation beam ( 30 ) such as a laser to selectively remove material from the coating layer.