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. 16, 1998
Filed:
Jan. 07, 1997
Applicant:
Inventor:
Alan C Seabaugh, Richardson, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 17 ; 257 23 ; 257 25 ; 257197 ; 257198 ;
Abstract
A solid-state frequency multiplier circuit (10) is provided which includes a bipolar quantum-well resonant tunneling transistor (12), a resistive load (14), and an A.C. output coupling capacitor (16), all which may be formed in a single integrated circuit or as discrete components. The value of the resistive load (14) determines the frequency multiplication factor of the circuit (10), and can produce frequencies in a range from about 2 GHz to over 20 GHz. A different embodiment of the present invention provides a frequency multiplication circuit (20) which generates a sinusoidal output waveform, without using an output A.C. coupling capacitor.