Patent ID: 11908868
Assignee: ROHM CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a semiconductor layer;
a plurality of cells that are formed in the semiconductor layer;
a control pad for electric connection for controlling the semiconductor device,
a pad peripheral portion formed around the control pad to surround the control pad continuously;
a built-in resistor that is disposed partly below the control pad and that is made of polysilicon, the built-in resistor electrically connecting the control pad with the pad peripheral portion; and
a plurality of source pads for electric connection,
wherein the control pad is isolated from the pad peripheral portion physically in a same layer so that a space is formed between the control pad and the pad peripheral portion, and the control pad is formed around the edge portion of the semiconductor device,
a connecting portion to which a connecting member is adapted to be connected is selectively formed on a surface of the control pad, and
the built-in resistor is selectively disposed in a region that avoids the connecting portion in a plain view,
wherein the control pad is made of a material containing aluminum, the pad peripheral portion is made of a material containing aluminum, and each of said source pads is made of a material containing aluminum.