IP Library Granted Patent US 7,835,211
Granted Patent B2
US 7,835,211 · App. 12/379,917 · Granted Nov 16, 2010

Semiconductor device and method of fabricating the same

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Quick Facts
Patent No.
US 7,835,211
App. No.
12/379,917
Granted
Nov 16, 2010
Kind
B2
Abstract

A semiconductor device is provided including a first fuse link having a copper-containing metal film, a second fuse link having a polysilicon film, a semiconductor substrate, and a field insulating film formed on the semiconductor substrate. The second fuse link is formed on the field insulating film. An interlayer insulating film is provided between the first fuse link and the second fuse link. The first fuse link is electrically connected to the second fuse link via a first plug formed in the interlayer insulating film.

Claims (16)

1. A semiconductor device, comprising:

a first fuse link comprising a copper-containing metal film;

a second fuse link comprising a polysilicon film;

a semiconductor substrate; and

a field insulating film formed on the semiconductor substrate,

wherein the second fuse link is formed on the field insulating film,

wherein an interlayer insulating film is provided between the first fuse link and the second fuse link, and

wherein the first fuse link is electrically connected to the second fuse link via a first plug formed in the interlayer insulating film.

2. The semiconductor device of claim 1 , wherein the first plug is formed under a terminal.

3. The semiconductor device of claim 1 , further comprising a second plug, the second plug being configured to electrically connect the first fuse link to one of a one of a source electrode and a drain electrode of a first transistor.

4. The semiconductor device of claim 1 , further comprising a third plug, the third plug being configured to electrically connect the second fuse link to one of a source electrode and a drain electrode of a second transistor.

5. The semiconductor device of claim 1 , further comprising:

a terminal provided between the first fuse link and the second fuse link;

a first transistor having source/drain electrodes, one of which is connected to the terminal and the other to a ground; and

a second transistor having source/drain electrodes, one of which connected to one end of the second fuse link opposite to the terminal and the other to the ground.

6. The semiconductor device of claim 5 , further comprising a judging circuit associated with the first transistor and the second transistor.

Assignments (2)
CHANGE OF ADDRESS Recorded Nov 29, 2017
From: RENESAS ELECTRONICS CORPORATION
To: RENESAS ELECTRONICS CORPORATION
Reel/Frame 044928/0001 →
CHANGE OF NAME Recorded Oct 28, 2010
From: NEC ELECTRONICS CORPORATION
To: RENESAS ELECTRONICS CORPORATION
Reel/Frame 025214/0187 →