Semiconductor device and method for manufacturing same

摘要

A semiconductor device includes a flat package substrate having a main surface on which is defined a semiconductor chip mount surface portion and onto which a semiconductor chip is to be mounted and a peripheral surface portion surrounding the semiconductor chip mount surface portion. An electrically insulating elastic layer is provided on the peripheral surface portion of the flat package substrate and a wiring pattern film is provided on an exposed main surface of the elastic layer. The wiring pattern film includes a base insulting film and wiring patterns which are formed on the base insulation film, each wiring pattern having a first end connected to an external connection terminal and a second end connected to the semiconductor chip. The semiconductor chip is sealed with a resin by potting.