Patent · US Expired

Method of fabricating a light emitting device

US6872604B2 · kind B2 · utility

70Cited by
4References
32Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 4, 2001
Grant dateMar 29, 2005
Priority date
Expiry dateMar 7, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K59/8792

Abstract

There is provided an inexpensive light emitting device and an electronic instrument using the same. In this invention, photolithography steps relating to manufacture of a transistor are reduced, so that the yield of the light emitting device is improved and the manufacturing period thereof is shortened. A feature is that a gate electrode is formed of conductive films of plural layers, and by using the selection ratio of those at the time of etching, the concentration of an impurity region formed in an active layer is adjusted.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.