Patent ID: 9412699
Filing Date: 2016-08-09
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a substrate that includes four corners; a first conductive layer formed above the substrate; a first guard ring, that includes a first conductor, formed above the substrate; and a second guard ring, that includes a second conductor, formed above the substrate, wherein: the first conductor is connected to the first conductive layer; the second conductor is connected to the first conductive layer; the second guard ring is surrounded by the first guard ring; the first conductor includes a first part, a second part and a third part at each of the four corners; the first part extends in a first direction; the second part extends in a second direction that is different from the first direction in a plan view; the third part extends in a third direction that is different from the first direction and the second direction in a plan view; the first part is connected to the third part; the second part is connected to the third part; the second conductor includes a fourth part, a fifth part and a sixth part at each of the four corners; the fourth part extends in a fourth direction; the fifth part extends in a fifth direction that is different from the fourth direction in a plan view; the sixth part extends in a sixth direction that is different from the fourth direction and the fifth direction in a plan view; the fourth part is connected to the sixth part; and the fifth part is connected to the sixth part.