Japan, March 5 -- STANLEY ELECTRIC CO LTD has got intellectual property rights for 'VERTICAL RESONATOR TYPE LIGHT-EMITTING DEVICE.' Other related details are as follows:
Application Number: JP,2025-063752
Category (FI): H01S5/042,612,H01S5/343,610,H01S5/183
Stage: PROBLEM TO BE SOLVED: To provide a vertical resonator type light-emitting device of which the lifetime is prolonged by suppressing a rise of a drive voltage during long-term electrification.SOLUTION: A vertical resonator type light-emitting device comprises: a semiconductor structure layer including a substrate of a gallium nitride based semiconductor, a first multilayer film reflector, a first semiconductor layer of a first conductivity type, an active layer and a second semiconductor layer of a second conductivity type; a translucent electrode layer which is electrically in contact with the second semiconductor layer in one region of a top face of the second semiconductor layer and insulated from the second semiconductor layer in the other region surrounding the one region; a metal conductor layer formed on the other region of the top face of the translucent electrode layer; a second multilayer film reflector covering one region on the translucent electrode layer; and a translucent insulator layer disposed between the second semiconductor layer and the translucent electrode layer in the other region. The translucent insulator layer includes an inner edge having a step outside of one region. The second semiconductor layer includes an inactivated region in which an impurity is inactivated. The metal conductor layer is formed so as to cover the inner edge of the translucent insulator layer via the translucent electrode layer.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: April 8, 2025
Publication Date: July 8, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
