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发明公开
CN1776906A 一种芯片识别代码的配置系统和配置方法 无效 - 驳回

一种芯片识别代码的配置系统和配置方法
摘要：
本发明公开了一种芯片识别代码的配置系统，用于多金属层结构的芯片中，其特征在于：包括若干异或门，每个异或门的输入端数量与金属层数量相同，所述每个异或门的各输入端与所述芯片的各金属层一一对应，且每个输入端连接其所对应的金属层的电源或地，所述每个异或门的输出都代表一位二进制数，所有异或门的输出组合成一个二进制字串表示的芯片识别代码。本发明还公开了一种芯片识别代码的配置方法。利用本发明，可以最小的硅片改动，实现芯片识别代码的改变，达到降低芯片设计制造成本的目的。可以广泛应用于集成电路的设计制造过程中。
摘要（英）：

The system includes some exclusive-or gates. Number of input end of each exclusive-or gate is equal to number of metal layers. Each input end of each exclusive-or gate is corresponding to each metal layer, and then each input end is connected to electrical source or ground of corresponding metal layer. An output of each exclusive-or gate represents one bit of binary number. All outputs from exclusive-or gates constitute string in binary to represent ID code of chip. The invention also discloses method for configuring ID code of chip. Advantages are: changing ID code of chip by minimal change made for chip, and lowering cost. The invention is suitable to chip in structure of multiple metal layers, and applicable to procedure for designing and manufacturing IC.

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