KR20050062384A - 불휘발성 반도체 기억 장치 - Google Patents
불휘발성 반도체 기억 장치 Download PDFInfo
- Publication number
- KR20050062384A KR20050062384A KR1020040103361A KR20040103361A KR20050062384A KR 20050062384 A KR20050062384 A KR 20050062384A KR 1020040103361 A KR1020040103361 A KR 1020040103361A KR 20040103361 A KR20040103361 A KR 20040103361A KR 20050062384 A KR20050062384 A KR 20050062384A
- Authority
- KR
- South Korea
- Prior art keywords
- data
- refresh
- block
- refresh block
- memory
- 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.)
- Abandoned
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 28
- 230000015654 memory Effects 0.000 claims abstract description 121
- 238000000034 method Methods 0.000 claims description 25
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 230000010287 polarization Effects 0.000 claims 1
- 238000013500 data storage Methods 0.000 abstract description 18
- 238000010586 diagram Methods 0.000 description 9
- 230000005641 tunneling Effects 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- 101710117542 Botulinum neurotoxin type A Proteins 0.000 description 4
- LPQOADBMXVRBNX-UHFFFAOYSA-N ac1ldcw0 Chemical compound Cl.C1CN(C)CCN1C1=C(F)C=C2C(=O)C(C(O)=O)=CN3CCSC1=C32 LPQOADBMXVRBNX-UHFFFAOYSA-N 0.000 description 4
- 229940089093 botox Drugs 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 101001057156 Homo sapiens Melanoma-associated antigen C2 Proteins 0.000 description 1
- 102100027252 Melanoma-associated antigen C2 Human genes 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002784 hot electron Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0425—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing a merged floating gate and select transistor
-
- 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
-
- 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
- G11C16/10—Programming or data input circuits
-
- 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
- G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
- G11C16/3418—Disturbance prevention or evaluation; Refreshing of disturbed memory data
-
- 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
- G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
- G11C16/3418—Disturbance prevention or evaluation; Refreshing of disturbed memory data
- G11C16/3431—Circuits or methods to detect disturbed nonvolatile memory cells, e.g. which still read as programmed but with threshold less than the program verify threshold or read as erased but with threshold greater than the erase verify threshold, and to reverse the disturbance via a refreshing programming or erasing step
-
- 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
- G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
- G11C16/349—Arrangements for evaluating degradation, retention or wearout, e.g. by counting erase cycles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/02—Arrangements for writing information into, or reading information out from, a digital store with means for avoiding parasitic signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Security & Cryptography (AREA)
- Read Only Memory (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
- Mram Or Spin Memory Techniques (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003422119A JP4335659B2 (ja) | 2003-12-19 | 2003-12-19 | 不揮発性半導体記憶装置 |
| JPJP-P-2003-00422119 | 2003-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050062384A true KR20050062384A (ko) | 2005-06-23 |
Family
ID=34675305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040103361A Abandoned KR20050062384A (ko) | 2003-12-19 | 2004-12-09 | 불휘발성 반도체 기억 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7286401B2 (enExample) |
| JP (1) | JP4335659B2 (enExample) |
| KR (1) | KR20050062384A (enExample) |
| CN (1) | CN1629983A (enExample) |
| TW (1) | TW200535847A (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805857B1 (ko) * | 2006-03-02 | 2008-02-21 | 키몬다 아게 | 자기-정렬된 처리를 이용하여 제조된 상 변화 메모리 |
| KR101125390B1 (ko) * | 2008-12-08 | 2012-03-27 | 후지쯔 가부시끼가이샤 | 비휘발성 메모리, 메모리 제어 장치, 메모리 제어 시스템, 및 비휘발성 메모리의 제어 방법 |
| US8767450B2 (en) | 2007-08-21 | 2014-07-01 | Samsung Electronics Co., Ltd. | Memory controllers to refresh memory sectors in response to writing signals and memory systems including the same |
| KR20210079393A (ko) * | 2019-12-05 | 2021-06-29 | 샌디스크 테크놀로지스 엘엘씨 | 메모리 셀들에 대한 온도 및 사이클링 의존적 리프레시 동작 |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1717817B8 (en) * | 2005-04-29 | 2016-05-18 | Micron Technology, Inc. | A semiconductor memory device with information loss self-detect capability |
| JP4696715B2 (ja) * | 2005-06-21 | 2011-06-08 | ソニー株式会社 | 記憶装置及び記憶装置の駆動方法 |
| EP1814121A1 (en) * | 2006-01-31 | 2007-08-01 | STMicroelectronics S.r.l. | Non-volatile EEPROM type memory architecture |
| US7447096B2 (en) * | 2006-05-05 | 2008-11-04 | Honeywell International Inc. | Method for refreshing a non-volatile memory |
| KR100875292B1 (ko) | 2006-09-19 | 2008-12-23 | 삼성전자주식회사 | 플래시 메모리 장치 및 그것의 리프레쉬 방법 |
| TWI320180B (en) * | 2007-01-12 | 2010-02-01 | A driving method and a driving system for writing the phase change memory | |
| JP5164400B2 (ja) * | 2007-03-12 | 2013-03-21 | ルネサスエレクトロニクス株式会社 | 不揮発性半導体記憶装置 |
| KR20090086816A (ko) | 2008-02-11 | 2009-08-14 | 삼성전자주식회사 | 상변화 메모리 장치, 그것의 기록 방법, 그리고 그것을포함하는 시스템 |
| US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
| WO2009042298A1 (en) * | 2007-09-26 | 2009-04-02 | Rambus Inc. | Flash memory refresh |
| US7848148B2 (en) * | 2007-10-18 | 2010-12-07 | Macronix International Co., Ltd. | One-transistor cell semiconductor on insulator random access memory |
| US7855916B2 (en) * | 2007-10-24 | 2010-12-21 | Rao G R Mohan | Nonvolatile memory systems with embedded fast read and write memories |
| JP2009158633A (ja) * | 2007-12-26 | 2009-07-16 | Sanyo Electric Co Ltd | 不揮発性半導体記憶装置およびその製造方法 |
| US8189385B2 (en) * | 2007-12-26 | 2012-05-29 | Semiconductor Components Industries, Llc | Nonvolatile semiconductor memory device, method for manufacturing the same, and nonvolatile memory array |
| KR101437123B1 (ko) * | 2008-04-01 | 2014-09-02 | 삼성전자 주식회사 | 메모리 시스템 및 그것의 마모도 관리 방법 |
| US8031521B1 (en) * | 2008-05-20 | 2011-10-04 | Marvell International Ltd. | Reprogramming non-volatile memory devices for read disturbance mitigation |
| US7719876B2 (en) | 2008-07-31 | 2010-05-18 | Unity Semiconductor Corporation | Preservation circuit and methods to maintain values representing data in one or more layers of memory |
| US8213243B2 (en) * | 2009-12-15 | 2012-07-03 | Sandisk 3D Llc | Program cycle skip |
| JP2011170941A (ja) * | 2010-02-22 | 2011-09-01 | Fujitsu Semiconductor Ltd | 半導体メモリおよびシステム |
| JP2012069199A (ja) * | 2010-09-22 | 2012-04-05 | Toshiba Corp | 半導体記憶装置 |
| KR101756111B1 (ko) | 2011-04-15 | 2017-07-10 | 삼성전자 주식회사 | 메모리 컨트롤러 구동방법, 메모리 컨트롤러, 메모리 장치 및 메모리 시스템 |
| CN103137202B (zh) * | 2011-11-24 | 2018-01-30 | 旺宏电子股份有限公司 | 记忆体及诱发热载子注入与非门串列的选取记忆胞的方法 |
| WO2014019156A1 (en) * | 2012-08-01 | 2014-02-06 | Datacard Corporation | Variable erase for thermally rewritable cards |
| CN103049713B (zh) * | 2012-12-20 | 2016-12-07 | 华为技术有限公司 | 对存储设备中数据进行巡检的方法、设备及系统 |
| US9325321B2 (en) * | 2013-03-13 | 2016-04-26 | Microsemi SoC Corporation | Background auto-refresh apparatus and method for non-volatile memory array |
| US20140307504A1 (en) * | 2013-04-12 | 2014-10-16 | Winbond Electronics Corp. | Data storage device, and fabrication and control methods thereof |
| US8971093B2 (en) | 2013-05-14 | 2015-03-03 | Kabushiki Kaisha Toshiba | Memory device and method of controlling memory device |
| US9329802B2 (en) | 2013-11-11 | 2016-05-03 | Qualcomm Incorporated | Fail safe refresh of data stored in NAND memory device |
| US9240235B2 (en) | 2013-12-19 | 2016-01-19 | Sandisk Technologies Inc. | Mitigating disturb effects for non-volatile memory |
| US20150213898A1 (en) * | 2014-01-27 | 2015-07-30 | Silicon Storage Technololgy, Inc. | Byte Erasable Non-volatile Memory Architecture And Method Of Erasing Same |
| CN104299556A (zh) * | 2014-10-13 | 2015-01-21 | 深圳市华星光电技术有限公司 | 驱动电路及显示装置 |
| WO2016067846A1 (ja) | 2014-10-31 | 2016-05-06 | ソニー株式会社 | メモリコントローラ、記憶装置、情報処理システムおよびメモリの制御方法 |
| JP6320322B2 (ja) * | 2014-12-29 | 2018-05-09 | 東芝メモリ株式会社 | キャッシュメモリ装置及びプログラム |
| JP6421042B2 (ja) * | 2015-01-16 | 2018-11-07 | ルネサスエレクトロニクス株式会社 | 情報処理装置 |
| WO2016154144A1 (en) * | 2015-03-21 | 2016-09-29 | NEO Semiconductor, Inc. | Sonos byte-erasable eeprom |
| CN106708650B (zh) * | 2015-11-17 | 2022-02-08 | 恩智浦美国有限公司 | 保护嵌入式非易失性存储器免受干扰 |
| KR102513505B1 (ko) * | 2016-01-29 | 2023-03-24 | 에스케이하이닉스 주식회사 | 비휘발성 메모리 장치, 그것을 포함하는 데이터 저장 장치의 동작 방법 |
| JP6718248B2 (ja) * | 2016-02-17 | 2020-07-08 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
| CN105810242A (zh) * | 2016-03-02 | 2016-07-27 | 中国科学院上海微系统与信息技术研究所 | 一种相变存储器和提高其疲劳寿命的操作方法 |
| US10269440B2 (en) * | 2016-05-17 | 2019-04-23 | Silicon Storage Technology, Inc. | Flash memory array with individual memory cell read, program and erase |
| US10074438B2 (en) * | 2016-06-10 | 2018-09-11 | Cypress Semiconductor Corporation | Methods and devices for reducing program disturb in non-volatile memory cell arrays |
| KR102589259B1 (ko) * | 2016-06-20 | 2023-10-12 | 에스케이하이닉스 주식회사 | 데이터 저장 장치 및 그것의 동작 방법 |
| KR102559530B1 (ko) | 2016-09-19 | 2023-07-27 | 에스케이하이닉스 주식회사 | 저항성 메모리 장치, 이를 위한 디스터번스 방지 회로 및 방법 |
| US9997253B1 (en) | 2016-12-08 | 2018-06-12 | Cypress Semiconductor Corporation | Non-volatile memory array with memory gate line and source line scrambling |
| US10354737B2 (en) * | 2017-06-22 | 2019-07-16 | Western Digital Technologies, Inc. | Non-volatile memory sub-block erasure disturb management scheme |
| JP6563988B2 (ja) * | 2017-08-24 | 2019-08-21 | ウィンボンド エレクトロニクス コーポレーション | 不揮発性半導体記憶装置 |
| JP7212239B2 (ja) * | 2018-06-05 | 2023-01-25 | ユナイテッド・セミコンダクター・ジャパン株式会社 | 不揮発性半導体記憶装置及び不揮発性半導体記憶装置の書き換え方法 |
| CN111863089B (zh) * | 2019-04-24 | 2022-07-19 | 华邦电子股份有限公司 | 存储器装置及非易失性存储器的控制方法 |
| CN110703993B (zh) * | 2019-09-20 | 2023-07-04 | 上海新储集成电路有限公司 | 一种用于短时非易失性存储器的数据刷新方法 |
| CN114093405A (zh) * | 2021-10-25 | 2022-02-25 | 长江存储科技有限责任公司 | 存储器数据的擦除方法、存储装置及存储系统 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268319A (en) * | 1988-06-08 | 1993-12-07 | Eliyahou Harari | Highly compact EPROM and flash EEPROM devices |
| JP3155847B2 (ja) * | 1993-01-13 | 2001-04-16 | 株式会社東芝 | 不揮発性半導体記憶装置およびこれを用いた記憶システム |
| US5969383A (en) * | 1997-06-16 | 1999-10-19 | Motorola, Inc. | Split-gate memory device and method for accessing the same |
| JP3599541B2 (ja) * | 1997-11-27 | 2004-12-08 | シャープ株式会社 | 不揮発性半導体記憶装置 |
| US6005810A (en) * | 1998-08-10 | 1999-12-21 | Integrated Silicon Solution, Inc. | Byte-programmable flash memory having counters and secondary storage for disturb control during program and erase operations |
| JP4132323B2 (ja) * | 1998-12-17 | 2008-08-13 | 富士通株式会社 | 不揮発性半導体記憶装置及び不揮発性半導体記憶装置の内部動作方法 |
| US6396744B1 (en) * | 2000-04-25 | 2002-05-28 | Multi Level Memory Technology | Flash memory with dynamic refresh |
| JP2004030738A (ja) * | 2002-06-24 | 2004-01-29 | Toshiba Corp | ダイナミック型半導体メモリ装置 |
| FR2851074B1 (fr) * | 2003-02-10 | 2005-04-22 | St Microelectronics Sa | Memoire flash sectorisee comprenant des moyens de controle et de rafraichissement de cellules memoire |
-
2003
- 2003-12-19 JP JP2003422119A patent/JP4335659B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-01 TW TW093133216A patent/TW200535847A/zh unknown
- 2004-12-03 US US11/002,794 patent/US7286401B2/en not_active Expired - Fee Related
- 2004-12-09 CN CNA200410098557XA patent/CN1629983A/zh active Pending
- 2004-12-09 KR KR1020040103361A patent/KR20050062384A/ko not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805857B1 (ko) * | 2006-03-02 | 2008-02-21 | 키몬다 아게 | 자기-정렬된 처리를 이용하여 제조된 상 변화 메모리 |
| US8767450B2 (en) | 2007-08-21 | 2014-07-01 | Samsung Electronics Co., Ltd. | Memory controllers to refresh memory sectors in response to writing signals and memory systems including the same |
| KR101125390B1 (ko) * | 2008-12-08 | 2012-03-27 | 후지쯔 가부시끼가이샤 | 비휘발성 메모리, 메모리 제어 장치, 메모리 제어 시스템, 및 비휘발성 메모리의 제어 방법 |
| US8391067B2 (en) | 2008-12-08 | 2013-03-05 | Fujitsu Limited | Nonvolatile memory |
| KR20210079393A (ko) * | 2019-12-05 | 2021-06-29 | 샌디스크 테크놀로지스 엘엘씨 | 메모리 셀들에 대한 온도 및 사이클링 의존적 리프레시 동작 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4335659B2 (ja) | 2009-09-30 |
| US20050135155A1 (en) | 2005-06-23 |
| US7286401B2 (en) | 2007-10-23 |
| CN1629983A (zh) | 2005-06-22 |
| JP2005182909A (ja) | 2005-07-07 |
| TW200535847A (en) | 2005-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4335659B2 (ja) | 不揮発性半導体記憶装置 | |
| US7864588B2 (en) | Minimizing read disturb in an array flash cell | |
| US6870773B2 (en) | Data writing method for semiconductor memory device and semiconductor memory device | |
| US7911837B2 (en) | Multi-state memory cell with asymmetric charge trapping | |
| US8593881B2 (en) | Pre-charge sensing scheme for non-volatile memory (NVM) | |
| US20140143473A1 (en) | Data refresh in non-volatile memory | |
| US10192622B2 (en) | Systems, methods, and apparatus for memory cells with common source lines | |
| US9245644B2 (en) | Method and apparatus for reducing erase disturb of memory by using recovery bias | |
| US20120243328A1 (en) | Nonvolatile semiconductor memory device and data erase method of the same | |
| US20090109755A1 (en) | Neighbor block refresh for non-volatile memory | |
| US7450418B2 (en) | Non-volatile memory and operating method thereof | |
| US20070196982A1 (en) | Nrom non-volatile mode of operation | |
| KR100379553B1 (ko) | 플래쉬 메모리 셀의 어레이 및 이를 이용한 데이터프로그램방법 및 소거방법 | |
| US20080130367A1 (en) | Byte-Erasable Nonvolatile Memory Devices | |
| US7570514B2 (en) | Method of operating multi-level cell and integrate circuit for using multi-level cell to store data | |
| US6934190B1 (en) | Ramp source hot-hole programming for trap based non-volatile memory devices | |
| US6618286B2 (en) | Non-volatile semiconductor memory device with a memory array preventing generation of a through current path | |
| JP4902196B2 (ja) | 不揮発性半導体記憶装置 | |
| US10438673B1 (en) | Erasing method and storage medium | |
| US20070091682A1 (en) | Byte-Erasable Nonvolatile Memory Devices | |
| JP5072301B2 (ja) | 半導体集積回路装置及びその動作方法 | |
| US8861281B2 (en) | Method of programming memory and memory apparatus utilizing the method | |
| JP2005251356A (ja) | 不揮発性半導体メモリ装置、並びに不揮発性半導体メモリ装置のデータ読み出し方法およびデータ消去方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20041209 |
|
| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20091105 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20041209 Comment text: Patent Application |
|
| N231 | Notification of change of applicant | ||
| PN2301 | Change of applicant |
Patent event date: 20100805 Comment text: Notification of Change of Applicant Patent event code: PN23011R01D |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20110207 Patent event code: PE09021S01D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20110922 |
|
| NORF | Unpaid initial registration fee | ||
| PC1904 | Unpaid initial registration fee |