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:
Sep. 07, 2004
Filed:
Mar. 01, 2002
Yutaka Mimino, Yamanashi, JP;
Osamu Baba, Yamanashi, JP;
Yoshio Aoki, Yamanashi, JP;
Muneharu Gotoh, Yamanashi, JP;
Fujitsu Quantum Devices Limited, Yamanashi, JP;
Abstract
A structure for preventing MMICs (Monolithic Microwave Integrated Circuits) from deterioration in the high-frequency transmission characteristics thereof, which results from mechanical pressure applied to the pads during the wire-bonding thereto for external connection. The structure includes a groove provided in the surface of the interlayer insulation film around each of the pads. The line conductor for transmitting high-frequency signals is free from the peeling off or bending thereof, which is caused by the deformation in the interlayer insulation films during when the mechanical pressure applied to the pads, and thus, the change in the transmission characteristics of the line conductor can be minimized, and the reliability of MMICs can be improved.