Patent ID: 9406543
Filing Date: 2016-08-02
CPC Classification: H01L

Claim Text:
1. A semiconductor power device, comprising: a substrate having a first region and a second region; a plurality of gate electrode structures on the substrate, each of the gate electrode structures extending from the first region to the second region and including a first gate electrode, a second gate electrode and a connecting portion, the first and second gate electrodes extending in a first direction, and the connecting portion connecting end portions of the first and second gate electrodes to each other; a floating well region doped with impurities in the first region of the substrate, the floating well region having a first impurity concentration and a first depth, and a portion of the floating well region being disposed between the gate electrode structures; and a termination ring region doped with impurities in the second region of the substrate, the termination ring region being spaced apart from the gate electrode structures and having a ring shape surrounding the first region, and the termination ring region having the first impurity concentration and the first depth.