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:
Mar. 24, 2015
Filed:
Sep. 08, 2011
Makoto Ito, Yokohama, JP;
Sosaku Sawada, Yokohama, JP;
Makoto Ito, Yokohama, JP;
Sosaku Sawada, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A front end module for an optical receiver is disclosed. The module includes a PD, a trans-impedance amplifier (TIA), an insulating carrier for mounting the PD, and a conductive base for mounting the carrier. The carrier provides first and second metal films thereon. The first metal film carries a photocurrent from the PD to the TIA, while, the second metal film carries the bias supply to the PD. The PD is mounted on the first and second metal films by the flip-chip arrangement. The second metal film surrounds the first metal film to suppress resonances appeared in the trans-impedance spectrum of the front end module.