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. 03, 2005
Filed:
Apr. 14, 2004
Wai-yi Lien, Hsin-Chu, TW;
Chung-long Chang, Hsin-Chu, TW;
Jyh-chyurn Guo, Hsinchu, TW;
John Chern, Hsin Chu, TW;
Wai-Yi Lien, Hsin-Chu, TW;
Chung-Long Chang, Hsin-Chu, TW;
Jyh-Chyurn Guo, Hsinchu, TW;
John Chern, Hsin Chu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
Disclosed is a semiconductor radio frequency (RF) device having a shielding structure for minimizing coupling between RF passive components and conductive routing for active components. In one example, the device includes at least one shielding layer formed between the RF passive components and conductive routing. The shielding layer includes at least one opening. In another example, a second shielding layer may be used. The second shielding layer may also have an opening, and the openings in the first and second shielding layers may be offset from one another. The first and second shielding layers may be connected to each other through a guard ring, and may also be connected to a common voltage potential.