公开(公告)号：US20120146664A1

公开(公告)日：2012-06-14

申请号：US13397989

申请日：2012-02-16

Applicant: Rei-Fu HUANG ,  Jin-Bin YANG

Inventor： Rei-Fu HUANG ,  Jin-Bin YANG

IPC: G01R31/07

CPC classification number: G11C17/18 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An eFuse with at least one fuse unit is provided. The fuse unit includes a first common node providing a first reference voltage, a second common node providing a second reference voltage, at least one fuse coupled to the first common node, and a determining unit coupled between the fuse and the second common node, generating an output signal indicating whether the fuse is blown or not according to a first condition in a normal mode and a second condition in a test mode.

Abstract translation: 提供至少一个保险丝单元的eFuse。 保险丝单元包括提供第一参考电压的第一公共节点，提供第二参考电压的第二公共节点，耦合到第一公共节点的至少一个熔丝以及耦合在熔丝和第二公共节点之间的确定单元，产生 根据正常模式中的第一状态和测试模式中的第二状态，指示熔丝是否熔断的输出信号。

公开(公告)号：US08143902B2

公开(公告)日：2012-03-27

申请号：US12683101

申请日：2010-01-06

Applicant: Rei-Fu Huang ,  Jin-Bin Yang

Inventor： Rei-Fu Huang ,  Jin-Bin Yang

IPC: G01R31/07

CPC classification number: G11C17/18 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An eFuse with at least one fuse unit is provided. The fuse unit includes a common node, a sensing unit with a first input terminal and a second input terminal, at least one fuse coupled between the common node and the first input terminal of the sensing unit with a resistance, and a switching unit coupled between the common node and the second input terminal of the sensing unit. A resistance of the switching unit is equivalent to a first resistance in a normal mode and equivalent to a second resistance in a test mode, and the second resistance is higher than the first resistance. The sensing unit generates an output signal indicating whether the fuse is blown or not according to the resistances of the fuse and the switching unit.

Abstract translation: 提供至少一个保险丝单元的eFuse。 保险丝单元包括公共节点，具有第一输入端和第二输入端的感测单元，耦合在公共节点与感测单元的第一输入端之间的至少一个熔丝，以及耦合在 传感单元的公共节点和第二输入端。 开关单元的电阻等于在正常模式中的第一电阻并且等于测试模式中的第二电阻，并且第二电阻高于第一电阻。 感测单元根据保险丝和开关单元的电阻产生指示熔丝是否熔断的输出信号。

公开(公告)号：US07644323B2

公开(公告)日：2010-01-05

申请号：US11742567

申请日：2007-04-30

Applicant: Cheng-Wen Wu ,  Rei-Fu Huang ,  Chin-Lung Su ,  Wen-Ching Wu ,  Kun-Lun Luo

Inventor： Cheng-Wen Wu ,  Rei-Fu Huang ,  Chin-Lung Su ,  Wen-Ching Wu ,  Kun-Lun Luo

IPC: G11C29/00

CPC classification number: G11C29/44 ,  G11C29/4401 ,  G11C29/72

Abstract: Disclosed is a build-in self-diagnosis and repair method and apparatus in a memory with syndrome identification. It applies a fail-pattern identification and a syndrome-format structure to identify at least one type of faulty syndrome in the memory during a memory testing, then generates and exports fault syndrome information associated with the corresponding faulty syndrome. According to the fault syndrome information, the method applies a redundancy analysis algorithm, allocates spare memory elements and repairs the faulty cells in the memory. The syndrome-format structure respectively applies single-faulty-word-syndrome format, faulty-row-segment-syndrome format, and faulty-column-segment-syndrome format for different faulty syndromes, such as faulty row segments and single faulty words, faulty column segments and single faulty words, all of single faulty words, faulty row segments and faulty column segments, and so on.

Abstract translation: 公开了一种在具有综合征识别的记忆中的内置自诊断和修复方法和装置。 它在存储器测试期间应用故障模式识别和综合征格式结构来识别存储器中的至少一种类型的故障综合征，然后产生并输出与相应的故障综合征相关的故障综合征信息。 根据故障综合信息，该方法应用冗余分析算法，分配备用存储器元件并修复存储器中的故障单元。 综合征格式结构分别针对不良故障综合征，如有缺陷的行段和单一故障字，分别应用单故障字综合征格式，故障行段综合征格式和故障列段综合征格式， 列段和单个故障单词，所有单个故障字，故障行段和故障列段等。

公开(公告)号：US07528628B2

公开(公告)日：2009-05-05

申请号：US11756651

申请日：2007-06-01

Applicant: Rei-Fu Huang ,  Shih-huang Huang

Inventor： Rei-Fu Huang ,  Shih-huang Huang

IPC: H03L5/00 ,  H03K19/0175

CPC classification number: H03K19/018528

Abstract: The disclosure relates to a voltage converter, converting a first signal of a first voltage to output a second signal of a second voltage. A level shifter receives the first signal to generate the second signal. An isolation circuit is coupled to the output of the level shifter, passing the second signal out. When the input of voltage converter is floated, the isolation circuit stops passing the second signal as the output, instead, the isolation circuit outputs a substitution signal having a predetermined voltage level irrelevant to the input of the level shifter.

Abstract translation: 本公开涉及电压转换器，转换第一电压的第一信号以输出第二电压的第二信号。 电平移位器接收第一信号以产生第二信号。 隔离电路耦合到电平移位器的输出端，使第二信号通过。 当电压转换器的输入浮起时，隔离电路停止通过第二信号作为输出，而是隔离电路输出具有与电平移位器的输入无关的预定电压电平的置换信号。

公开(公告)号：US20060064618A1

公开(公告)日：2006-03-23

申请号：US11001345

申请日：2004-11-30

Applicant: Cheng-Wen Wu ,  Rei-Fu Huang ,  Chin-Lung Su ,  Wen-Ching Wu ,  Yeong-Jar Chang ,  Kun-Lun Luo ,  Shen-Tien Lin

Inventor： Cheng-Wen Wu ,  Rei-Fu Huang ,  Chin-Lung Su ,  Wen-Ching Wu ,  Yeong-Jar Chang ,  Kun-Lun Luo ,  Shen-Tien Lin

IPC: G01R31/28

CPC classification number: G11C29/4401 ,  G11C29/16 ,  G11C29/44 ,  G11C29/72 ,  G11C2029/0405 ,  G11C2029/3602

Abstract: The present invention provides a method and apparatus for a memory build-in self-diagnosis and repair with syndrome identification. It uses a fail-pattern identification and a syndrome-format structure to identify faulty rows, faulty columns and single faulty word in the memory during the testing process, then exports the syndrome information. Based on the syndrome information, a redundancy analysis algorithm is applied to allocate the spare memory elements repairing the faulty memory cells. It has a sequencer with enhanced fault syndrome identification, a build-in redundancy-analysis circuit with improved redundancy utilization, and an address reconfigurable circuit with reduced timing penalty during normal access. The invention reduces the occupation time and the required capture memory space in the automatic test equipment. It also increases the repair rate and reduces the required area overhead.

Abstract translation: 本发明提供一种存储器建立自诊断和修复的方法和装置，其具有综合征识别。 它在测试过程中使用故障模式识别和故障排序格式结构来识别存储器中的故障行，故障列和单个故障字，然后输出故障信息。 基于综合信息，应用冗余分析算法来分配修复故障存储单元的备用存储单元。 它具有具有增强的故障综合征识别的定序器，具有改进的冗余利用率的内置冗余分析电路，以及在正常访问期间减少定时损失的地址可重构电路。 本发明减少了自动测试设备中的占用时间和所需的捕获存储空间。 它还增加了修复率，并减少了所需的面积开销。

公开(公告)号：US20110163758A1

公开(公告)日：2011-07-07

申请号：US12683101

申请日：2010-01-06

Applicant: Rei-Fu Huang ,  Jin-Bin Yang

Inventor： Rei-Fu Huang ,  Jin-Bin Yang

IPC: G01R31/02

CPC classification number: G11C17/18 ,  H01L23/5256 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An eFuse with at least one fuse unit is provided. The fuse unit includes a common node, a sensing unit with a first input terminal and a second input terminal, at least one fuse coupled between the common node and the first input terminal of the sensing unit with a resistance, and a switching unit coupled between the common node and the second input terminal of the sensing unit. A resistance of the switching unit is equivalent to a first resistance in a normal mode and equivalent to a second resistance in a test mode, and the second resistance is higher than the first resistance. The sensing unit generates an output signal indicating whether the fuse is blown or not according to the resistances of the fuse and the switching unit.

Abstract translation: 提供至少一个保险丝单元的eFuse。 保险丝单元包括公共节点，具有第一输入端和第二输入端的感测单元，耦合在公共节点与感测单元的第一输入端之间的至少一个熔丝，以及耦合在 传感单元的公共节点和第二输入端。 开关单元的电阻等于在正常模式中的第一电阻并且等于测试模式中的第二电阻，并且第二电阻高于第一电阻。 感测单元根据保险丝和开关单元的电阻产生指示熔丝是否熔断的输出信号。

公开(公告)号：US20090179684A1

公开(公告)日：2009-07-16

申请号：US12406163

申请日：2009-03-18

Applicant: Rei-Fu Huang ,  Shih-huang Huang

Inventor： Rei-Fu Huang ,  Shih-huang Huang

IPC: H03L5/00

CPC classification number: H03K19/018528

Abstract: The disclosure relates to a voltage converter, converting a first signal of a first voltage to output a second signal of a second voltage. A level shifter receives the first signal to generate the second signal. An isolation circuit is coupled to the output of the level shifter, passing the second signal out. When the input of voltage converter is floated, the isolation circuit stops passing the second signal as the output, instead, the isolation circuit outputs a substitution signal having a predetermined voltage level irrelevant to the input of the level shifter.

Abstract translation: 本公开涉及电压转换器，转换第一电压的第一信号以输出第二电压的第二信号。 电平移位器接收第一信号以产生第二信号。 隔离电路耦合到电平移位器的输出端，使第二信号通过。 当电压转换器的输入浮起时，隔离电路停止通过第二信号作为输出，而是隔离电路输出具有与电平移位器的输入无关的预定电压电平的置换信号。

公开(公告)号：US20080007315A1

公开(公告)日：2008-01-10

申请号：US11756651

申请日：2007-06-01

Applicant: Rei-Fu Huang ,  Shih-huang Huang

Inventor： Rei-Fu Huang ,  Shih-huang Huang

IPC: H03B1/00

CPC classification number: H03K19/018528

Abstract: The disclosure relates to a voltage converter, converting a first signal of a first voltage to output a second signal of a second voltage. A level shifter receives the first signal to generate the second signal. An isolation circuit is coupled to the output of the level shifter, passing the second signal out. When the input of voltage converter is floated, the isolation circuit stops passing the second signal as the output, instead, the isolation circuit outputs a substitution signal having a predetermined voltage level irrelevant to the input of the level shifter.

Abstract translation: 本公开涉及电压转换器，转换第一电压的第一信号以输出第二电压的第二信号。 电平移位器接收第一信号以产生第二信号。 隔离电路耦合到电平移位器的输出端，使第二信号通过。 当电压转换器的输入浮起时，隔离电路停止通过第二信号作为输出，而是隔离电路输出具有与电平移位器的输入无关的预定电压电平的置换信号。

公开(公告)号：US20070171703A1

公开(公告)日：2007-07-26

申请号：US11558297

申请日：2006-11-09

Applicant: Rei-Fu Huang ,  Young-Shying Chen ,  Chien-Chung Hung ,  Yuan-Jen Lee ,  Ming-Jer Kao

Inventor： Rei-Fu Huang ,  Young-Shying Chen ,  Chien-Chung Hung ,  Yuan-Jen Lee ,  Ming-Jer Kao

IPC: G11C11/00

CPC classification number: G11C11/16

Abstract: A current source for magnetic random access memory (MRAM) is provided, including a band-gap reference circuit, a first stage buffer, and a plurality of second stage buffers. The band-gap reference circuit provides an output reference voltage which is locked by the first stage buffer. The plurality of second stage buffers generate a stable voltage in response to the locked voltage, so as to provide a current for the conducting wire after being converted, such that magnetic memory cell changes its memory state in response to the current. The current source may reduce the discharge time under the operation of biphase current, so as to raise the operating speed. Further, the circuit area of the current source for the MRAM is also reduced. The operation of multiple write wires may be provided simultaneously to achieve parallel write.

Abstract translation: 提供了一种用于磁随机存取存储器（MRAM）的电流源，包括带隙参考电路，第一级缓冲器和多个第二级缓冲器。 带隙基准电路提供由第一级缓冲器锁定的输出参考电压。 多个第二级缓冲器响应于锁定电压产生稳定的电压，以便在转换之后为导线提供电流，使得磁存储单元响应于电流来改变其存储状态。 电流源可以减少双相电流运行时的放电时间，从而提高运行速度。 此外，MRAM的电流源的电路面积也减小。 可以同时提供多条写入线的操作以实现并行写入。

公开(公告)号：US20100328987A1

公开(公告)日：2010-12-30

申请号：US12491247

申请日：2009-06-25

Applicant: Chia-Hsien Liu ,  Rei-Fu Huang ,  Chien-Chung Chen ,  Che-Yuan Jao

Inventor： Chia-Hsien Liu ,  Rei-Fu Huang ,  Chien-Chung Chen ,  Che-Yuan Jao

IPC: G11C17/16

CPC classification number: G04B37/0481 ,  G04B19/065

Abstract: An electrically programmable fuse (e-fuse) apparatus includes an e-fuse macro and a switch device. The e-fuse macro is disposed in an integrated circuit, and has a plurality of e-fuse units. The switch device is disposed in the integrated circuit, and has an output node coupled to the e-fuse units and a first input node coupled to a first power source which supplies a first reference voltage acting as a programming voltage of the e-fuse macro. The switch device connects the first power source to the e-fuse units when the e-fuse macro is operated under a programming mode.

Abstract translation: 电可编程保险丝（e-fuse）装置包括电子熔丝宏和开关装置。 电子熔丝宏设置在集成电路中，并且具有多个电子熔丝单元。 开关装置设置在集成电路中，并且具有耦合到电子熔丝单元的输出节点和耦合到第一电源的第一输入节点，第一电源提供充当电子熔丝宏的编程电压的第一参考电压 。 当在编程模式下操作电子熔丝宏时，开关装置将第一电源连接到电子熔丝单元。