Shinko Electric Industries Co., Ltd.

Toshio Masuda

Kentaro Kaneko

Yoshio Furuhata

Mitsuharu Sato

A lead frame includes an outer frame. The outer frame includes: an upper surface; a lower surface that is opposite to the upper surface; a side surface between the upper surface and the lower surface; a first recess that is formed to extend from the upper surface to the side surface; a second recess that is formed to extend from the lower surface to the side surface; and a curved surface that is positioned between the side surface and a side wall of the first recess or between the side surface and a side wall of the second recess.

Growing community of inventors

Nagano, Japan

Toshio Masuda