公开(公告)号：US07480888B1

公开(公告)日：2009-01-20

申请号：US12124771

申请日：2008-05-21

申请人： Clarence Rosser Ogilvie ,  Charles B. Winn ,  David Wills Milton ,  Kenneth Anthony Lauricella ,  Nitin Sharma ,  Paul Mark Schanely ,  Robert Dov Herzl ,  Robert Spencer Horton ,  Tad Jeffrey Wilder ,  Douglas P. Nadeau

发明人： Clarence Rosser Ogilvie ,  Charles B. Winn ,  David Wills Milton ,  Kenneth Anthony Lauricella ,  Nitin Sharma ,  Paul Mark Schanely ,  Robert Dov Herzl ,  Robert Spencer Horton ,  Tad Jeffrey Wilder ,  Douglas P. Nadeau

IPC分类号： G06F17/50

CPC分类号： G06F17/5054

摘要： A design structure embodied in a machine-readable medium is disclosed in one embodiment of the invention as including a flexible logic block to facilitate engineering changes at selected locations within an IC. The flexible logic block has a consistent and identifiable structure such that a simple automated process may be used to reconfigure the structure to perform different logical operations. In certain embodiments, the flexible logic block includes a circuit, such as a multiplexer, having multiple inputs and at least one output. A metal interconnect structure is coupled to the inputs and enables connection of each of the inputs to one of several electrical potentials using a focused-ion-beam (FIB) tool. In this way, the circuit may be configured to perform different logical operations after components in the IC exist in hardware.

摘要翻译： 在本发明的一个实施例中公开了体现在机器可读介质中的设计结构，包括用于促进在IC内的选定位置进行工程变更的灵活逻辑块。 灵活的逻辑块具有一致且可识别的结构，使得可以使用简单的自动化过程来重新配置结构以执行不同的逻辑操作。 在某些实施例中，柔性逻辑块包括具有多个输入和至少一个输出的电路，例如多路复用器。 金属互连结构耦合到输入端，并且能够使用聚焦离子束（FIB）工具将每个输入端连接到几个电势之一。 以这种方式，电路可以被配置为在硬件中存在IC中的部件之后执行不同的逻辑操作。