IP Library Granted Patent US 8,536,659
Granted Patent B2
US 8,536,659 · App. 12/512,162 · Granted Sep 17, 2013

Semiconductor device with integrated channel stop and body contact

Inventors: William Larson (Minnetonka, MN); Gregory Michaelson (Shakopee, MN)
Assignee: Polar Seminconductor, Inc.
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Quick Facts
Patent No.
US 8,536,659
App. No.
12/512,162
Granted
Sep 17, 2013
Kind
B2
Abstract

A channel stop is provided for a semiconductor device that includes at least one active region. The channel stop is configured to surround the semiconductor device, to abut the at least one active region at a periphery of the semiconductor device, and to share an electrical connection with the at least one active region.

Claims (15)

1. A semiconductor device comprising:

a body region of a first conductivity type;

at least a first active region in the body region, the first active region being of a second conductivity type;

a channel stop of the first conductivity type in the body region with a higher doping concentration than the body region, the channel stop being configured to surround the first active region of only the semiconductor device to laterally isolate the semiconductor device from other semiconductor devices, and to abut the first active region at a periphery of the semiconductor device; and

an electrical contact electrically connecting the first active region and the channel stop.

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

a second active region of the second conductivity type; and

a gate region of the first conductivity type;

wherein the channel stop surrounds the second active region and the gate region.

3. The semiconductor device of claim 2 , further comprising a dielectric layer over the first active region, the second active region, the gate region, the body region, and the channel stop.

4. The semiconductor device of claim 3 , wherein the dielectric layer has a thickness of 0.5 to 2.0 microns.

5. The semiconductor device of claim 3 , further comprising a metal layer over a portion of the dielectric layer.

6. The semiconductor device of claim 1 , wherein the electrical contact is composed of metal silicide.

7. The semiconductor device of claim 1 , wherein the channel stop is spaced from the second active region by 0.5 to 4.0 microns.

8. The semiconductor device of claim 1 , wherein the channel stop is spaced from the gate region by 0.2 to 1.0 microns.

Assignments (2)
CHANGE OF NAME Recorded Jul 28, 2014
From: POLAR SEMICONDUCTOR, INC.
To: POLAR SEMICONDUCTOR, LLC
Reel/Frame 033421/0154 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2009
From: LARSON, WILLIAM; MICHAELSON, GREGORY
To: POLAR SEMICONDUCTOR, INC.
Reel/Frame 023026/0191 →
Continuity (1)
Related Publication 20110024803A1 · Feb 3, 2011