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:
Apr. 01, 2014
Filed:
Nov. 19, 2007
Katsuhiko Kitagawa, Gunma, JP;
Hiroyuki Shinogi, Gunma, JP;
Shinzo Ishibe, Gunma, JP;
Hiroshi Yamada, Kanagawa, JP;
Katsuhiko Kitagawa, Gunma, JP;
Hiroyuki Shinogi, Gunma, JP;
Shinzo Ishibe, Gunma, JP;
Hiroshi Yamada, Kanagawa, JP;
Semiconductor Components Industries, LLC, Phoenix, AZ (US);
Abstract
The invention is directed to providing a semiconductor device receiving a blue-violet laser, of which the reliability and yield are enhanced. A device element converting a blue-violet laser into an electric signal is formed on a front surface of a semiconductor substrate. An optically transparent substrate is attached to the front surface of the semiconductor substrate with an adhesive layer being interposed therebetween. The adhesive layer contains transparent silicone. Since the front surface of the device element is covered by the optically transparent substrate, foreign substances are prevented from adhering to the front surface of the device element. Furthermore, the adhesive layer is covered by the optically transparent substrate. This prevents the adhesive layer from being exposed to outside air, thereby preventing the degradation of the adhesive layerdue to a blue-violet laser.