Patent ID: 9006831
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. A semiconductor device, comprising: an NMOS transistor formed under a pad, a first lower metal film arranged on the drain, for establishing an electrical connection to the drain; a second lower metal film for electrically connecting the source and the gate electrode to the P-type diffusion region; an intermediate metal film electrically connected to the first lower metal film through a first via, the intermediate metal film having a rectangular ring shape and including an opening under the pad, wherein the NMOS transistor intersecting only with one side of the intermediate metal film and avoiding intersecting with other sides thereof, and wherein the first via being arranged on the one side of the intermediate metal film directly above the drain; an upper metal film that forms the pad, the upper metal film being arranged on the intermediate metal film and electrically connected to the intermediate metal film through a second via; and a protective film including a pad opening that is aligned with the opening.