Fujitsu Semiconductor Limited

Fujitsu Corporation

Nobukatsu Saito

Atsushi Kikuchi

Yoshiyuki Yoneda

Eiji Watanabe

Masaharu Minamizawa

Kazuyuki Imamura

Tadahiro Okamoto

Nobutaka Shimizu

Tadashi Uno

A semiconductor device includes a semiconductor element provided over a wiring board; sealing resin configured to seal the semiconductor element; and reinforcing resin provided at least at a part of a boundary part of the sealing resin and the wiring board. In the above-mentioned semiconductor device, the reinforcing resin may be provided along a perimeter of the boundary part of the sealing resin and the wiring board. The reinforcing resin may be provided at a boundary part of the sealing resin and the wiring board in a vicinity of a corner part of the sealing resin.

Semiconductor device and manufacturing method of the same

A method of manufacturing a semiconductor device using a wiring substrate is provided which can facilitate the handling of the wiring substrate. The method includes the steps of forming a peelable resin layer on a silicon substrate, forming the wiring substrate on the peelable resin layer, mounting semiconductor chips on the wiring substrate, forming semiconductor devices by sealing the plurality of semiconductor chips by a sealing resin, individualizing the semiconductor devices by dicing the semiconductor devices from the sealing resin side but leaving the silicon substrate, peeling each of the individualized semiconductor devices from the silicon substrate between the silicon substrate and the peelable resin layer, and exposing terminals on the wiring substrate by forming openings through the peelable resin layer or by removing the peelable resin layer.

Semiconductor device and manufacturing method thereof

Growing community of inventors

Kawasaki, Japan

Nobukatsu Saito