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:
May. 22, 1984
Filed:
Apr. 28, 1982
Applicant:
Inventor:
Felix Diamand, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
307511 ; 307304 ; 357 22 ;
Abstract
An electronic control device using a field effect transistor (f.e.t.) of a particular design and capable of causing in a h.f. circuit a phase shift appreciable at a frequency of the order of several Gc/s. To this effect, in a f.e.t. formed by an active layer of a thickness a deposited onto a semiconductor substrate of high resistivity, the gate of the f.e.t. is longer than the thickness a for instance the length of the gate measured along the path of the charge carriers in the conductive channel is of 10 microns, giving an appreciable phase shift at an operating frequency of 10 Gc/s.