CN1937084A - 一种对集成电路关闭内部功能的实现方法 - Google Patents
一种对集成电路关闭内部功能的实现方法 Download PDFInfo
- Publication number
- CN1937084A CN1937084A CNA2006100623667A CN200610062366A CN1937084A CN 1937084 A CN1937084 A CN 1937084A CN A2006100623667 A CNA2006100623667 A CN A2006100623667A CN 200610062366 A CN200610062366 A CN 200610062366A CN 1937084 A CN1937084 A CN 1937084A
- Authority
- CN
- China
- Prior art keywords
- function
- eigenwert
- chip
- nonvolatile memory
- integrated circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/22—Safety or protection circuits preventing unauthorised or accidental access to memory cells
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Read Only Memory (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100623667A CN100470680C (zh) | 2006-08-30 | 2006-08-30 | 一种对集成电路关闭内部功能的实现方法 |
PCT/CN2007/002416 WO2008028401A1 (en) | 2006-08-30 | 2007-08-13 | Device and method for closing internal modes/functions of integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100623667A CN100470680C (zh) | 2006-08-30 | 2006-08-30 | 一种对集成电路关闭内部功能的实现方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1937084A true CN1937084A (zh) | 2007-03-28 |
CN100470680C CN100470680C (zh) | 2009-03-18 |
Family
ID=37954525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100623667A Active CN100470680C (zh) | 2006-08-30 | 2006-08-30 | 一种对集成电路关闭内部功能的实现方法 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN100470680C (zh) |
WO (1) | WO2008028401A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103593626A (zh) * | 2013-11-11 | 2014-02-19 | 杭州晟元芯片技术有限公司 | 一种芯片测试模式和调试模式的保护方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06243677A (ja) * | 1993-02-19 | 1994-09-02 | Hitachi Ltd | 半導体記憶装置とメモリ装置及びその品種設定方法 |
US5432741A (en) * | 1994-03-17 | 1995-07-11 | Texas Instruments Incorporated | Circuit for permanently disabling EEPROM programming |
US6774668B1 (en) * | 2003-01-08 | 2004-08-10 | Xilinx Inc. | Apparatus and method for preinitializing logic function |
AU2003304654A1 (en) * | 2003-10-16 | 2005-05-26 | Stmicroelectronics Limited | Security integrated circuit |
GB0426005D0 (en) * | 2004-11-26 | 2004-12-29 | Koninkl Philips Electronics Nv | Sram test method and sram test arrangement |
-
2006
- 2006-08-30 CN CNB2006100623667A patent/CN100470680C/zh active Active
-
2007
- 2007-08-13 WO PCT/CN2007/002416 patent/WO2008028401A1/zh active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103593626A (zh) * | 2013-11-11 | 2014-02-19 | 杭州晟元芯片技术有限公司 | 一种芯片测试模式和调试模式的保护方法 |
CN103593626B (zh) * | 2013-11-11 | 2017-02-01 | 杭州晟元数据安全技术股份有限公司 | 一种芯片测试模式和调试模式的保护方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100470680C (zh) | 2009-03-18 |
WO2008028401A1 (en) | 2008-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhaori Science and Technology Co., Ltd., Beijing Assignor: Zhaori Technology Co., Ltd., Beijing Contract fulfillment period: 2008.2.28 to 2026.8.30 contract change Contract record no.: 2008990000103 Denomination of invention: Method for realizing closing internal function of integrated circuit Granted publication date: Wei Shouquan License type: Exclusive license Record date: 2008.5.23 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.2.28 TO 2026.8.30 Name of requester: ZHAORI SCIENCE AND TECHNOLOGY CO. LTD., BEIJING Effective date: 20080523 |
|
ASS | Succession or assignment of patent right |
Owner name: ZHAORI SCIENCE AND TECHNOLOGY CO. LTD., BEIJING Free format text: FORMER OWNER: ZHAORI TECHNOLOGY CO., LTD., BEIJING Effective date: 20080718 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20080718 Address after: Beijing City, Haidian District Zhichun Road Jinqiu International Building No. 6 B block 4 layer encoding post: 100088 Applicant after: Zhaori Science and Technology Co., Ltd., Beijing Address before: Beijing City, Haidian District Zhichun Road Jinqiu International Building No. 6 B block 4 layer encoding post: 100088 Applicant before: Zhaori Technology Co., Ltd., Beijing |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |