IP Library Granted Patent US 8,643,119
Granted Patent B2
US 8,643,119 · App. 12/182,212 · Granted Feb 4, 2014

Substantially L-shaped silicide for contact

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,643,119
App. No.
12/182,212
Granted
Feb 4, 2014
Kind
B2
Abstract

A structure for a semiconductor device, according to an embodiment, includes: a substantially L-shaped silicide element including a base member and an extended member, wherein the base member extends at least partially into a shallow trench isolation (STI) region such that a substantially horizontal surface of the base member directly contacts a substantially horizontal surface of the STI region; and a contact contacting the substantially L-shaped silicide element.

Claims (14)

1. A structure for a semiconductor device, the structure comprising:

a substantially L-shaped silicide element including a base member and an extended member,

wherein the base member extends at least partially into a shallow trench isolation (STI) region such that a bottom substantially horizontal surface of the base member directly contacts a top substantially horizontal surface of the STI region, and

wherein a top surface of the substantially L-shaped silicide element is aligned with a top surface of a source/drain region; and

a contact contacting the substantially L-shaped silicide element.

2. The structure of claim 1 , wherein the contact includes a notch region for mating with the substantially L-shaped silicide element, and

wherein the notch region connects to the base member and a portion of the extended member.

3. The structure of claim 1 , wherein the substantially L-shaped silicide element extends about the source/drain region of a transistor, and

wherein the contact directly contacts the STI region.

4. The structure of claim 3 , wherein the base member extends at least partially into silicon of the source/drain region to a depth that is shallower than a source/drain junction depth.

5. The structure of claim 1 , further comprising a plurality of contacts, and

wherein a first contact for a first transistor is staggered relative to an adjacent, second contact for a second transistor along the isolation region, and

wherein the substantially L-shaped silicide element is recessed into the source/drain region of a transistor.

6. The structure of claim 1 , wherein the source/drain region includes a silicon-germanium member for a P-type semiconductor device, or a silicon-carbon member for an N-type semiconductor device.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Nov 20, 2020
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: GLOBALFOUNDRIES INC.
Reel/Frame 054636/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 16, 2020
From: ALSEPHINA INNOVATIONS, INC.
To: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
Reel/Frame 053351/0839 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2019
From: GLOBALFOUNDRIES INC.
To: ALSEPHINA INNOVATIONS INC.
Reel/Frame 049612/0211 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2015
From: GLOBALFOUNDRIES U.S. 2 LLC; GLOBALFOUNDRIES U.S. INC.
To: GLOBALFOUNDRIES INC.
Reel/Frame 036779/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2015
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: GLOBALFOUNDRIES U.S. 2 LLC
Reel/Frame 036550/0001 →