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:
Jan. 11, 1994
Filed:
Feb. 04, 1993
Kwong-Kit Choi, Tinton Falls, NJ (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A high-speed semiconductor device which comprises an emitter layer, a base layer, a collector layer, a potential barrier layer disposed between the emitter layer and the base layer, and a superlattice disposed between the base layer and the collector layer. The superlattice provides a multitude of quantum-mechanical transmission coefficients which can be applied to linear analog circuits and high frequency circuit. In addition, the high speed semiconductor device may act as a frequency multiplier, providing an output signal having 2n times as many frequencies as an input signal when n is the number of energy pass bands in said superlattice below a predetermined applied voltage.