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:
Feb. 23, 2021
Filed:
Jun. 05, 2019
Applicant:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Inventors:
Chi-Hsien Lin, Taichung, TW;
Ho-Hsiang Chen, Hsinchu, TW;
Hsien-Yuan Liao, Hsinchu, TW;
Tzu-Jin Yeh, Hsinchu, TW;
Ying-Ta Lu, Hsinchu, TW;
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/04 (2006.01); H03L 7/099 (2006.01); H01L 23/528 (2006.01); H01L 23/522 (2006.01); H01L 23/66 (2006.01); H03H 7/01 (2006.01); H03B 5/12 (2006.01);
U.S. Cl.
CPC ...
H03B 1/04 (2013.01); H01L 23/528 (2013.01); H01L 23/5223 (2013.01); H01L 23/5226 (2013.01); H01L 23/5227 (2013.01); H01L 23/66 (2013.01); H03B 5/1212 (2013.01); H03H 7/0161 (2013.01); H03L 7/099 (2013.01); H01L 2223/6616 (2013.01); H01L 2223/6661 (2013.01); H03B 2200/009 (2013.01); H03B 2202/05 (2013.01);
Abstract
A voltage-controlled oscillator (VCO) includes a power supply node configured to have a power supply voltage. A reference node is configured to have a reference voltage. A transformer-coupled band-pass filter (BPF) is coupled to a pair of transistors. The pair of transistors and the transformer-coupled band-pass filter are positioned between the power supply node and the reference node.