IP Library › Granted Patent US 7,227,783
Granted Patent B2
US 7,227,783 · App. 11/116,614 · Granted Jun 5, 2007

Memory structure and method of programming

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Quick Facts
Patent No.
US 7,227,783
App. No.
11/116,614
Granted
Jun 5, 2007
Kind
B2
Abstract

A memory and a method for programming a memory device are discussed. The method comprises selecting a cell to program, wherein the cell is coupled to a bit line, applying a first programming pulse, wherein the first programming pulse comprises applying a first voltage to the bit line, verifying if the cell is programmed after applying the first programming pulse, and applying a second programming pulse to the bit line after applying the first programming pulse if the cell is not programmed after applying the first programming pulse, wherein second programming pulse comprises applying a second voltage to the bit line, wherein the second voltage is different than the first voltage.

Claims (15)

1. A method for programming a memory device, the method comprising:

selecting a cell to program, wherein the cell is coupled to a bit line;

applying a first programming pulse, wherein the first programming pulse comprises applying a first voltage to the bit line and a third voltage to a well of the cell;

verifying if the cell is programmed after applying the first programming pulse; and

applying a second programming pulse to the bit line after applying the first programming pulse if the cell is not programmed after applying the first programming pulse, wherein the second programming pulse comprises applying a second voltage to the bit line and a fourth voltage to the well of the cell, wherein the second voltage is different than the first voltage and the fourth voltage is greater than the third voltage.

2. The method of claim 1 , wherein the second voltage is less than the first voltage.

3. The method of claim 1 , wherein applying the first programming pulse and the second programming pulse further comprise applying the first programming pulse and the second programming pulse to a drain of the cell.

4. The method of claim 1 , further comprising:

verifying if the cell is programmed after applying the second programming pulse; and

repeating applying the second programming pulse and verifying if the cell is programmed after applying the second programming pulse until the cell is programmed.

5. The method of claim 1 , wherein applying the first programming pulse further comprises applying a fourth voltage to a source of the cell and the second programming pulse further comprises applying a fifth voltage to the source of the cell, wherein the fifth voltage is different than the fourth voltage.

6. The method of claim 5 , wherein the fifth voltage is greater than the fourth voltage.

7. The method of claim 1 , wherein applying the first programming pulse further comprises applying a seventh voltage to a gate of the cell and the second programming pulse further comprises applying an eighth voltage to the gate of the cell, wherein the eighth voltage is different than the seventh voltage.

8. The method of claim 7 , wherein the eighth voltage is greater than the seventh voltage.

9. The method of claim 2 , wherein the second programming pulse uses secondary electron injection with a well bias.

Assignments (20)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040925 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Feb 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V. F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 052917/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040928 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Jan 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 052915/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 037486 FRAME 0517. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS. Recorded Dec 10, 2019
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 053547/0421 →
CORRECTIVE ASSIGNMENT TO CORRECT THE TO CORRECT THE APPLICATION NO. FROM 13,883,290 TO 13,833,290 PREVIOUSLY RECORDED ON REEL 041703 FRAME 0536. ASSIGNOR(S) HEREBY CONFIRMS THE THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS.. Recorded Feb 20, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: SHENZHEN XINGUODU TECHNOLOGY CO., LTD.
Reel/Frame 048734/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE PATENTS 8108266 AND 8062324 AND REPLACE THEM WITH 6108266 AND 8060324 PREVIOUSLY RECORDED ON REEL 037518 FRAME 0292. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS. Recorded Feb 1, 2017
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 041703/0536 →
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 040928/0001 →
RELEASE OF SECURITY INTEREST Recorded Sep 21, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V., F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 040925/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2016
From: FREESCALE SEMICONDUCTOR, INC.
To: NORTH STAR INNOVATIONS INC.
Reel/Frame 037694/0264 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 13, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037518/0292 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 12, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037486/0517 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037356/0553 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037354/0225 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037354/0655 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037356/0143 →
SECURITY AGREEMENT Recorded Nov 6, 2013
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 031591/0266 →
SECURITY AGREEMENT Recorded Jun 18, 2013
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 030633/0424 →
SECURITY AGREEMENT Recorded May 13, 2010
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 024397/0001 →
SECURITY AGREEMENT Recorded Nov 1, 2007
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 020045/0448 →
SECURITY AGREEMENT Recorded Feb 2, 2007
From: FREESCALE SEMICONDUCTOR, INC.; FREESCALE ACQUISITION CORPORATION; FREESCALE ACQUISITION HOLDINGS CORP.; FREESCALE HOLDINGS (BERMUDA) III, LTD.
To: CITIBANK, N.A. AS COLLATERAL AGENT
Reel/Frame 018855/0129 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2005
From: LI, CHI NAN BRIAN
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 016520/0512 →