Gs Yuasa International Ltd.

Panasonic Corporation

Hiroto Yamashita

Kaoru Yamashita

Tomoyuki Futakawa

Ryoji Abe

Mitsuyuki Kimura

Takashi Akimoto

Kazuki Sekiya

Mikito Ohnishi

Water addition plug for storage battery

Vent plug for lead acid battery

Lead acid battery

A small and thin surface-mount type optical semiconductor device having high air tightness, which can be manufactured at a reduced cost includes: a baseformed of a glass substrate; a recessformed on a first main surfaceof the base; a through holeextending from a bottom portionof the recess to a second main surfaceof the base; an inner wall conductive film formed on an inner wall surface of the through hole; a wiring patternmade of a conductive film formed around an opening of the through hole on the bottom portion of the recess so as to be connected electrically to the inner wall conductive film; an optical semiconductor elementbonded to the wiring pattern via a conductive bonding material; a terminal portionmade of a conductive film formed around an opening of the through hole on the second main surface such that it is connected electrically to the inner wall conductive film; and a metal portionbonded to the inner wall conductive film to clog the through hole.

Surface-mount type optical semiconductor device and method for manufacturing the same

Growing community of inventors

Kyoto, Japan

Hiroto Yamashita