While gingerly handling some expensive masks, [emach1ne] got to use some really ... every step that led to a nursery of baby LEDs on the wafer, each of which was tested. Working arrays were ...

PLDC: A new solution for improving mask and wafer uniformity Improving mask uniformity is the easiest, cheapest way to improve wafer uniformity. Uniformity is a measure of how similarly the exact same ...

Photolithography uses light to transfer a pattern of features from a mask to a light-sensitive chemical photoresist on a semiconductor wafer. As the pattern is transferred, it is reduced in scale ...