公开(公告)号：US07653851B2

公开(公告)日：2010-01-26

申请号：US12412267

申请日：2009-03-26

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters—circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法，该移相器用于消除驱动并行扫描链的伪随机测试图形发生器所特征的结构依赖性的影响。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US20100083063A1

公开(公告)日：2010-04-01

申请号：US12633601

申请日：2009-12-08

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/3177 ,  G06F11/25

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters—circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法，该移相器用于消除驱动并行扫描链的伪随机测试图形发生器所特征的结构依赖性的影响。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US20090187800A1

公开(公告)日：2009-07-23

申请号：US12412267

申请日：2009-03-26

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/3177 ,  G06F11/25

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters—circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法，该移相器用于消除驱动并行扫描链的伪随机测试图形发生器所特征的结构依赖性的影响。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US20070300110A1

公开(公告)日：2007-12-27

申请号：US11895845

申请日：2007-08-27

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/3183 ,  G06F11/26

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法。 移相器包括用于消除驱动并行扫描链的伪随机测试图形发生器特征的结构依赖性的影响的电路。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US07263641B2

公开(公告)日：2007-08-28

申请号：US10911033

申请日：2004-08-03

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

公开(公告)号：US06874109B1

公开(公告)日：2005-03-29

申请号：US09713662

申请日：2000-11-15

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28 ,  G01R31/3181 ,  G01R31/3183 ,  G01R31/3185

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

公开(公告)号：US07523372B2

公开(公告)日：2009-04-21

申请号：US11895845

申请日：2007-08-27

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法。 移相器包括用于消除驱动并行扫描链的伪随机测试图形发生器特征的结构依赖性的影响的电路。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US07805651B2

公开(公告)日：2010-09-28

申请号：US12633601

申请日：2009-12-08

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters—circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法，该移相器用于消除驱动并行扫描链的伪随机测试图形发生器所特征的结构依赖性的影响。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US20050015688A1

公开(公告)日：2005-01-20

申请号：US10911033

申请日：2004-08-03

申请人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

发明人： Janusz Rajski ,  Jerzy Tyszer ,  Nagesh Tamarapalli

IPC分类号： G01R31/28 ,  G01R31/3181 ,  G01R31/3183 ,  G01R31/3185 ,  G11B20/20 ,  G06K5/04 ,  G11B5/00

CPC分类号： G01R31/318541 ,  G01R31/31813 ,  G01R31/318385 ,  G01R31/318547 ,  G01R31/318594

摘要： A method is disclosed for the automated synthesis of phase shifters. Phase shifters comprise circuits used to remove effects of structural dependencies featured by pseudo-random test pattern generators driving parallel scan chains. Using a concept of duality, the method relates the logical states of linear feedback shift registers (LFSRs) and circuits spacing their inputs to each of the output channels. The method generates a phase shifter network balancing the loads of successive stages of LFSRs and satisfying criteria of reduced linear dependency, channel separation and circuit complexity.

摘要翻译： 公开了用于自动合成移相器的方法。 移相器包括用于消除驱动并行扫描链的伪随机测试图形发生器特征的结构依赖性的影响的电路。 使用二元性概念，该方法涉及线性反馈移位寄存器（LFSR）的逻辑状态和将输入间隔到每个输出通道的电路。 该方法产生平衡LFSR的连续级的负载的移相器网络，并且满足减少的线性依赖性，信道分离和电路复杂度的标准。

公开(公告)号：US07512508B2

公开(公告)日：2009-03-31

申请号：US11221395

申请日：2005-09-06

申请人： Janusz Rajski ,  Gang Chen ,  Martin Keim ,  Nagesh Tamarapalli ,  Manish Sharma ,  Huaxing Tang

发明人： Janusz Rajski ,  Gang Chen ,  Martin Keim ,  Nagesh Tamarapalli ,  Manish Sharma ,  Huaxing Tang

IPC分类号： G01R31/26 ,  G06F11/22

CPC分类号： G06F11/2273 ,  G01R31/01 ,  G01R31/2846 ,  G01R31/2853 ,  G01R31/2894 ,  G01R31/31704 ,  G01R31/31835

摘要： Methods, apparatus, and systems for computing and analyzing integrated circuit yield and quality are disclosed herein. For example, in one exemplary method disclosed herein information is received from processing test responses of integrated circuits designed for functional use in electronic devices. In this embodiment, the information is indicative of integrated circuit failures observed during testing of the integrated circuits and of possible yield limiting factors causing the integrated circuit failures. Probabilities that one or more of the possible yield limiting factors in the integrated circuits actually caused the integrated circuit failures are determined by statistically analyzing the received information. The probabilities that one or more possible yield limiting factors actually caused the integrated circuit failures are reported. Tangible computer-readable media comprising computer-executable instructions for causing a computer to perform any of the described methods are also disclosed.

摘要翻译： 本文公开了用于计算和分析集成电路产量和质量的方法，装置和系统。 例如，在本文公开的一个示例性方法中，从设计用于电子设备中的功能使用的集成电路的处理测试响应接收信息。 在该实施例中，该信息表示在集成电路测试期间观察到的集成电路故障以及导致集成电路故障的可能的产量限制因素。 通过统计分析接收的信息来确定集成电路中的一个或多个可能的屈服限制因素实际引起集成电路故障的概率。 报告了一个或多个可能的屈服限制因素实际上导致集成电路故障的概率。 还公开了包括用于使计算机执行任何所述方法的计算机可执行指令的有形计算机可读介质。