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:
Jun. 07, 1983
Filed:
Aug. 15, 1980
Applicant:
Inventor:
Vasil Uzunoglu, Ellicott City, MD (US);
Assignee:
Communications Satellite Corporation, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307591 ; 307310 ; 307303 ; 357 51 ;
Abstract
A temperature stabilized semiconductor delay element is comprised of an emitter and collector separated on a substrate by distance l. A voltage applied to ohmic contacts on either side of the emitter and collector provides an electric field E, whereby the delay .tau. between the emitter and collector is given by .tau.=l.sup.2 /.mu.E, where .mu. is the semiconductor mobility which varies with temperature. A compensation device located on the same substrate as the delay device provides the delay device with an electric field E=K/.mu., where K is constant, such that .tau.=l.sup.2 /K. The time delay .tau. is thus independent of temperature.