专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06418052B1 Nonvolatile semiconductor memory equipped with data latch circuits for transferring one-bit data or multi-bit data 有权
标题翻译：非易失性半导体存储器配备有用于传送一位数据或多位数据的数据锁存电路
公开(公告)号：US06418052B1
公开(公告)日：2002-07-09
申请号：US09976826
申请日：2001-10-12
申请人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
发明人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
IPC分类号： G11C1624
CPC分类号： G11C11/5642 , G11C11/5621 , G11C11/5628 , G11C16/0483 , G11C2211/5641 , G11C2211/5642
摘要： Data latch circuits are provided corresponding to select memory cells from or into which read or program is executed. The data latch circuits are grouped by two into sets. When 2-bit data is read from or programmed into the select memory cells, one data latch circuit is selected by a select signal, and, when 1-bit data is read or programmed, the two data latch circuits in one set are selected by a select signal. Between one or two selected data latch circuits and a data input/output buffer, data is exchanged. By so doing, changeover between 2-level data and multi-level (4-level or more-level) data concerning program or read of data into or out the memory cells becomes possible.
摘要翻译：数据锁存电路是从执行读取或程序的选择存储器单元提供的。数据锁存电路分为两组。当2位数据从选择存储单元读取或编程到选择存储单元中时，通过选择信号选择一个数据锁存电路，当读取或编程1位数据时，一组中的两个数据锁存电路由选择信号。在一个或两个选择的数据锁存电路和数据输入/输出缓冲器之间，交换数据。通过这样做，有可能在二级数据与有关程序的多级（4级或更多级）数据之间切换或将数据读入或取出存储单元变成可能。

2. 发明授权

US6122193A Non-volatile semiconductor memory capable of storing 1-bit data or multi-bit data 有权
标题翻译：能够存储1位数据或多位数据的非易失性半导体存储器
公开(公告)号：US6122193A
公开(公告)日：2000-09-19
申请号：US323455
申请日：1999-06-01
申请人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
发明人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
IPC分类号： G11C16/02 , G11C11/56 , G11C16/04
CPC分类号： G11C11/5642 , G11C11/5621 , G11C11/5628 , G11C16/0483 , G11C2211/5641 , G11C2211/5642
摘要： Data latch circuits are provided corresponding to select memory cells from or into which read or program is executed. The data latch circuits are grouped by two into sets. When 2-bit data is read from or programmed into the select memory cells, one data latch circuit is selected by a select signal, and, when 1-bit data is read or programmed, the two data latch circuits in one set are selected by a select signal. Between one or two selected data latch circuits and a data input/output buffer, data is exchanged. By so doing, changeover between 2-level data and multi-level (4-level or more-level) data concerning program or read of data into or out the memory cells becomes possible.
摘要翻译：数据锁存电路是从执行读取或程序的选择存储器单元提供的。数据锁存电路分为两组。当2位数据从选择存储单元读取或编程到选择存储单元中时，通过选择信号选择一个数据锁存电路，当读取或编程1位数据时，一组中的两个数据锁存电路由选择信号。在一个或两个选择的数据锁存电路和数据输入/输出缓冲器之间，交换数据。通过这样做，有可能在二级数据与有关程序的多级（4级或更多级）数据之间切换或将数据读入或取出存储单元变成可能。

3. 发明授权

US06331945B1 Non-volatile semiconductor memory capable of storing one-bit data or multi-bit data 有权
标题翻译：能够存储一位数据或多位数据的非易失性半导体存储器
公开(公告)号：US06331945B1
公开(公告)日：2001-12-18
申请号：US09528112
申请日：2000-03-17
申请人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
发明人： Noboru Shibata , Tomoharu Tanaka , Hiroto Nakai , Toshio Yamamura , Susumu Fujimura
IPC分类号： G11C1606
CPC分类号： G11C11/5642 , G11C11/5621 , G11C11/5628 , G11C16/0483 , G11C2211/5641 , G11C2211/5642
摘要： Data latch circuits are provided corresponding to select memory cells from or into which read or program is executed. The data latch circuits are grouped by two into sets. When 2-bit data is read from or programmed into the select memory cells, one data latch circuit is selected by a select signal, and, when 1-bit data is read or programmed, the two data latch circuits in one set are selected by a select signal. Between one or two selected data latch circuits and a data input/output buffer, data is exchanged. By so doing, changeover between 2-level data and multi-level (4-level or more-level) data concerning program or read of data into or out the memory cells becomes possible.
摘要翻译：数据锁存电路是从执行读取或程序的选择存储器单元提供的。数据锁存电路分为两组。当2位数据从选择存储单元读取或编程到选择存储单元中时，通过选择信号选择一个数据锁存电路，当读取或编程1位数据时，一组中的两个数据锁存电路由选择信号。在一个或两个选择的数据锁存电路和数据输入/输出缓冲器之间，交换数据。通过这样做，有可能在二级数据与有关程序的多级（4级或更多级）数据之间切换或将数据读入或取出存储单元变成可能。

4. 发明授权

US5682346A Nonvolatile semiconductor memory device having suitable writing efficiency 失效
标题翻译：具有合适写入效率的非易失性半导体存储器件
公开(公告)号：US5682346A
公开(公告)日：1997-10-28
申请号：US626256
申请日：1996-03-29
申请人： Toshio Yamamura , Hiroto Nakai , Tomoharu Tanaka
发明人： Toshio Yamamura , Hiroto Nakai , Tomoharu Tanaka
IPC分类号： G11C16/10 , G11C16/30 , G11C11/34
CPC分类号： G11C16/30 , G11C16/10
摘要： According to the present invention, a voltage level for boosting a writing voltage to be supplied to memory cells of a memory cell array, and writing time are optimized in consideration of writing efficiency and a distribution of threshold voltage. A boosting circuit boosts the writing voltage to be supplied to memory cells. A counter counts the number of writing times in accordance with a signal of a timer. The timer outputs the signal used to count the number of writing times at a fixed interval from a first writing time until an arbitrary writing time in counting a predetermined number of writing times by the counter and to count the number of writing times at an interval when the number of writing times is gradually increased after the arbitrary writing time in order to control supplying time of the writing voltage to the memory cells. Additionally, a voltage control circuit gradually divides a boost level due to the boosting circuit in accordance with the arbitrary number of writing times until the writing voltage reaches a predetermined upper limit, and maintains the writing voltage when the writing voltage reaches the predetermined upper limit.
摘要翻译：根据本发明，考虑到写入效率和阈值电压的分布，优化用于升压提供给存储单元阵列的存储单元的写入电压和写入时间的电压电平。升压电路提高写入电压以供给存储单元。计数器根据定时器的信号对写入次数进行计数。定时器输出用于对从计数器计数预定写入次数的第一写入时间到任意写入时间之间的固定间隔计数写入时间的信号，并以一定间隔对写入次数进行计数，在任意写入时间之后，写入次数逐渐增加，以便控制向存储单元提供写入电压的时间。此外，电压控制电路根据升压电路根据任意的写入次数逐渐分割升压电平，直到写入电压达到预定上限，并且当写入电压达到预定上限时保持写入电压。

5. 发明授权

US5546351A Non-volatile semiconductor memory device and memory system using the same 失效
公开(公告)号：US5546351A
公开(公告)日：1996-08-13
申请号：US326281
申请日：1994-10-20
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G06F11/10 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/34 , G11C29/00 , G11C29/34 , G11C29/52 , G11C13/00
CPC分类号： G11C29/785 , G06F11/1008 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3454 , G11C29/34 , G11C29/52 , G06F11/1068 , G06F2201/81 , G06F2212/2022
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite operation, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.

6. 发明授权

US5361227A Non-volatile semiconductor memory device and memory system using the same 失效
标题翻译：非易失性半导体存储器件和使用其的存储器系统
公开(公告)号：US5361227A
公开(公告)日：1994-11-01
申请号：US992653
申请日：1992-12-18
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G06F11/10 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/34 , G11C29/00 , G11C29/34 , G11C29/52 , G11C13/00
CPC分类号： G11C29/785 , G06F11/1008 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3454 , G11C29/34 , G11C29/52 , G06F11/1068 , G06F2201/81 , G06F2212/2022
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite operation, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.
摘要翻译：可以缩短程序验证和擦除验证操作所需的时间。即使重复执行写入和擦除操作，也可以抑制存储单元的阈值变化。在编程和擦除操作之后，可以根据每个位线上的电位的预充电之后的所有位线同时判断操作，而不改变列地址。在数据重写操作中，通过改变数据寄存器中的数据，对具有一次适当写入的数据的存储单元不进行重写操作。

7. 发明授权

US5818791A Non-volatile semiconductor memory device and memory system using the same 失效
公开(公告)号：US5818791A
公开(公告)日：1998-10-06
申请号：US826152
申请日：1997-03-27
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G06F11/10 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/34 , G11C29/00 , G11C29/34 , G11C29/52 , G11C13/00
CPC分类号： G11C29/785 , G06F11/1008 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3454 , G11C29/34 , G11C29/52 , G06F11/1068 , G06F2201/81 , G06F2212/2022
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite operation, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.

8. 发明授权

US5724300A Non-volatile semiconductor memory device and memory system using the same 失效
公开(公告)号：US5724300A
公开(公告)日：1998-03-03
申请号：US784927
申请日：1997-01-16
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G06F11/10 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/34 , G11C29/00 , G11C29/34 , G11C29/52 , G11C13/00
CPC分类号： G11C29/785 , G06F11/1008 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3454 , G11C29/34 , G11C29/52 , G06F11/1068 , G06F2201/81 , G06F2212/2022
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite operation, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.

9. 发明申请

US20060114729A1 Non-volatile semiconductor memory device and memory system using the same 失效
公开(公告)号：US20060114729A1
公开(公告)日：2006-06-01
申请号：US11243985
申请日：2005-10-06
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G11C7/10 , G11C11/34
CPC分类号： G11C29/785 , G06F11/1008 , G06F11/1068 , G06F2201/81 , G06F2212/2022 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3445 , G11C16/3454 , G11C16/3459 , G11C29/34 , G11C29/52
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite operation, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.

10. 发明授权

US06967892B2 Non-volatile semiconductor memory device and memory system using the same 失效
标题翻译：非易失性半导体存储器件和使用其的存储器系统
公开(公告)号：US06967892B2
公开(公告)日：2005-11-22
申请号：US10804094
申请日：2004-03-19
申请人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
发明人： Tomoharu Tanaka , Masaki Momodomi , Hideo Kato , Hiroto Nakai , Yoshiyuki Tanaka , Riichiro Shirota , Seiichi Aritome , Yasuo Itoh , Yoshihisa Iwata , Hiroshi Nakamura , Hideko Odaira , Yutaka Okamoto , Masamichi Asano , Kaoru Tokushige
IPC分类号： G06F11/10 , G11C16/10 , G11C16/12 , G11C16/34 , G11C29/00 , G11C29/34 , G11C29/52 , G11C16/04
CPC分类号： G11C29/785 , G06F11/1008 , G06F11/1068 , G06F2201/81 , G06F2212/2022 , G11C16/10 , G11C16/12 , G11C16/24 , G11C16/3436 , G11C16/344 , G11C16/3445 , G11C16/3454 , G11C16/3459 , G11C29/34 , G11C29/52
摘要： The time required for the program verify and erase verify operations can be shortened. The change of threshold values of memory cells can be suppressed even if the write and erase operations are executed repetitively. After the program and erase operations, whether the operations were properly executed can be judged simultaneously for all bit lines basing upon a change, after the pre-charge, of the potential at each bit line, without changing the column address. In the data rewrite oepration, the rewrite operation is not effected for a memory cell with the data once properly written, by changing the data in the data register.
摘要翻译：可以缩短程序验证和擦除验证操作所需的时间。即使重复执行写入和擦除操作，也可以抑制存储单元的阈值变化。在编程和擦除操作之后，可以根据每个位线上的电位的预充电之后的所有位线同时判断操作，而不改变列地址。在数据重写过程中，通过改变数据寄存器中的数据，对数据一次正确写入的存储单元不会影响重写操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式