US PATENT SUBCLASS 438 / FOR 157
.~.~.~.~ Light emitting diode (LED) (437/23)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

FOR 149  DF  INCLUDING FORMING A SEMICONDUCTOR JUNCTION (437/15) {7}
FOR 150  DF  .~ Using energy beam to introduce dopant or modify dopant distribution (437/ 16) {5}
FOR 155  DF  .~.~ Of semiconductor on insulating substrate (437/21) {14}
FOR 156  DF  .~.~.~ Of semiconductor compound (437/22) {1}
FOR 157.~.~.~.~ Light emitting diode (LED) (437/23)

DEFINITION

Classification: 438/FOR.157

Light emitting diodes (LED):

Foreign art collection for a process wherein the semiconductor compound is made in the form of a PN junction which emits light when biased in the forward direction.