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:
Apr. 27, 1993
Filed:
Nov. 07, 1991
Nobuhiro Kuwata, Yokohama, JP;
Abstract
There is disclosed a field effect transistor comprising a channel layer formed of GaInAs and provided with a planar dope layer doped with an impurity in the form of a two-dimensional thin plane a cap layer and a buffer layer formed respectively in contact with the upper and lower faces of the channel layer, the cap layer and buffer layer being formed of GaInAs whose In composition ratio is lower than that of the channel layer first and a second semiconductor layers formed respectively in contact with the cap layer and the buffer layer, first and second semiconductor layers being formed of GaInAs whose In composition ratio is lower than GaAs or the cap layer and the buffer layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile