The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1977
Filed:
Jan. 28, 1977
Guenter Winstel, Ottobrunn, DT;
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Abstract
A semiconductor luminescent device is disclosed of the MIS type which has a semiconductor body, a semiconductor monocrystalline insulating layer on one surface of the body and an electrode on the outer major surface of the insulating layer, which electrode is light transmissive. The crystal structure of the insulating layer is substantially the same as the crystal structure of the semiconductor body and has a spacing of energy bands which is greater than the light quanta which are emitted during a radiative recombination of charge carriers in the semiconductor body. The interval of the energy bands of the insulating layer is at least 2 kT greater than the interval of the energy bands of the semiconductor body. It is preferable that the crystal structure of the insulating layer have a deviation of its lattice interval of less than 1% from that of the semiconductor body.