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. 22, 2011
Filed:
Jun. 13, 2006
Osamu Kagaya, Tokyo, JP;
Yukitoshi Okamura, Fujisawa, JP;
Atsushi Miura, Yokohama, JP;
Michihide Sasada, Yokohama, JP;
Hideyuki Kuwano, Fujisawa, JP;
Osamu Kagaya, Tokyo, JP;
Yukitoshi Okamura, Fujisawa, JP;
Atsushi Miura, Yokohama, JP;
Michihide Sasada, Yokohama, JP;
Hideyuki Kuwano, Fujisawa, JP;
Opnext Japan, Inc., Yokohama, JP;
Abstract
A semiconductor chip on which a light receiving element is mounted, a preamplifier for amplifying an output signal from the light receiving element, and an insulating carrier substrate on which the light receiving element is mounted are connected such that the output signal from the light receiving element is input to the preamplifier through electrodes on the carrier substrate, and there are provided two electrodes, on the carrier substrate, having a capacitance value of 40 fF or more therebetween in a state where no light receiving element is mounted.