IP Library Granted Patent US 7,790,497
Granted Patent B2
US 7,790,497 · App. 12/004,124 · Granted Sep 7, 2010

Method to prevent alloy formation when forming layered metal oxides by metal oxidation

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Quick Facts
Patent No.
US 7,790,497
App. No.
12/004,124
Granted
Sep 7, 2010
Kind
B2
Abstract

The present method of fabricating a resistive memory device includes the steps of providing a first electrode, oxidizing a portion of the first electrode with an oxidizing agent, providing a metal body on the oxidized portion of the first electrode, oxidizing the entire metal body with an oxidizing agent, and providing a second electrode on the oxidized metal body.

Claims (23)

1. A method of fabricating an electronic device comprising:

providing a first body;

reacting a portion of the first body with an agent;

providing a second body on the reacted portion of the first body; and

reacting the entire second body with an agent wherein the first body is Ni and the second body is Cu.

2. A method of fabricating an electronic device comprising:

providing a first body;

oxidizing a portion of the first body;

providing a second body on the oxidized portion of the first body; and

oxidizing the entire second body wherein the first body is Ni and the second body is Cu.

3. The method of claim 2 wherein the first body is a metal body.

4. The method of claim 2 wherein the second body is a metal body.

5. A method of fabricating a resistive memory device comprising:

providing a first electrode;

reacting a portion of the first electrode with an agent;

providing a metal body on the reacted portion of the first electrode;

reacting the entire metal body with an agent; and

providing a second electrode on the reacted metal body wherein the first electrode is Ni and the metal body is Cu.

6. The method of claim 5 wherein the first electrode is metal.

7. The method of claim 6 wherein the agent with which the portion of the first electrode reacts is an oxidizing agent.

8. The method of claim 6 wherein the agent with which the metal body reacts is an oxidizing agent.

9. The method of claim 5 and further comprising the device incorporated in a system.

10. The method of claim 9 wherein the system is selected from the group consisting of a hand-held device, a vehicle, and a computer.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Mar 16, 2022
From: MUFG UNION BANK, N.A.
To: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
Reel/Frame 059410/0438 →
CORRECTIVE ASSIGNMENT TO CORRECT THE 8647899 PREVIOUSLY RECORDED ON REEL 035240 FRAME 0429. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTERST. Recorded Nov 3, 2020
From: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 058002/0470 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Oct 28, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: MUFG UNION BANK, N.A.
Reel/Frame 050896/0366 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2015
From: SPANSION, LLC
To: CYPRESS SEMICONDUCTOR CORPORATION
Reel/Frame 036042/0212 →
SECURITY INTEREST Recorded Mar 21, 2015
From: CYPRESS SEMICONDUCTOR CORPORATION; SPANSION LLC
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 035240/0429 →
RELEASE OF SECURITY INTEREST Recorded Mar 13, 2015
From: BARCLAYS BANK PLC
To: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY LLC
Reel/Frame 035201/0159 →
SECURITY AGREEMENT Recorded Jun 4, 2010
From: SPANSION LLC; SPANSION INC.; SPANSION TECHNOLOGY INC.; SPANSION TECHNOLOGY LLC
To: BARCLAYS BANK PLC
Reel/Frame 024522/0338 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2007
From: AVANZINO, STEVEN; SHIELDS, JEFFREY A.; BERNARD, JOFFRE; PANGRLE, SUZETTE K.
To: SPANSION LLC
Reel/Frame 020323/0034 →