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:
Jan. 16, 1990
Filed:
Feb. 12, 1988
Applicant:
Inventors:
Masao Yamawaki, Itami, JP;
Takashi Kondo, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 74 ; 357 72 ; 437209 ; 437211 ; 437213 ; 437215 ;
Abstract
A semiconductor device having a light transparent window includes: a wall produced at an outer contour of a light receiving section on the surface of a semiconductor chip, the molding resin which is produced after a process of inserting the chip in a metal mold. The wall and the metal mold adhere with each other for producing a space between the chip and the metal mold so that a light transparent window is produced at a light introduction section in a separate position from the wall above the chip.
Yamawaki, Masao. (1990). Semiconductor device having a light transparent window and a method of (U.S. Patent No. 4894707). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4894707
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile