438 / | HD | SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS |
983 | DF | ZENER DIODES {1} |
FOR 100 | DF | .~ Etching of semiconductor precursor, substrates, and devices used in an electrical function (156/625.1) {17} |
FOR 101 | .~.~ Measuring, testing, or inspecting (156/626.1) {1} | |
FOR 102 | DF | .~.~.~> By electrical means or of electrical property (156/627.1) |