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. 02, 2006
Filed:
May. 30, 2003
Shinobu Kida, Higashiosaka, JP;
Jun Tatsuta, Tsu, JP;
Hiroyuki Yoshida, Kyoto, JP;
Mikio Masui, Kashiba, JP;
Shinobu Kida, Higashiosaka, JP;
Jun Tatsuta, Tsu, JP;
Hiroyuki Yoshida, Kyoto, JP;
Mikio Masui, Kashiba, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
In a photoelectric device-part, a bonding pad is formed without increasing a plane area of a concave part for housing a photoelectric device to implement miniaturization and improvement of the light usability efficiency. A light reflecting surfaceof nearly a parabola configuration or the like provided for light emission and reception by a photoelectric deviceis formed on a slanting curved surface constituting a concave partof a circuit substrateA convex portionprojecting from the light reflecting surfaceand a receding concave portionare formed in the middle of the concave partA stageis formed by an upper and bottom surfaces of the convex and concave portionsandrespectively. A bonding padfor connecting circuits of the photoelectric deviceis formed at the stageSince a space for the bonding padis provided by both concave and convex portions, deformation of the light reflecting surfacecaused by the receding concave portionand a ratio of intrusion to the bottom surface of the concave part by the projecting convex portioncan be both minimized. As a result, the photoelectric devicecan be mounted without largely lowering light emission efficiency or without decentering the light emitting and receiving center, whereby a photoelectric device-partcan be miniaturized.