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2. 发明申请

US20070039060A1 Methods and systems for programming secure data into programmable and irreversible cells 审中-公开
标题翻译：将安全数据编程为可编程和不可逆单元的方法和系统
公开(公告)号：US20070039060A1
公开(公告)日：2007-02-15
申请号：US11203500
申请日：2005-08-12
申请人： Georges Jamieson , Anne-Clotilde Mascart , Jeanne Rickert , Douglas Snead , Chen-Yi Su
发明人： Georges Jamieson , Anne-Clotilde Mascart , Jeanne Rickert , Douglas Snead , Chen-Yi Su
IPC分类号： G06F11/00
CPC分类号： G11C16/22 , G06F12/1433 , G11C16/20
摘要： Methods and systems for programming secure data into programmable and irreversible memory cells included in electronic circuitry are provided. In general, the secure data is stored in one or more arrays integrated into or associated with an electronic device such as an IC. According to a disclosed method embodying the invention, a programmable and irreversible memory cell array has a control bit for indicating the program state of the array. The method includes reading the control bit of the array to identify a programmable state, loading and programming secure data, read-protecting and write-protecting the array. The control bit is programmed to indicate the non-programmable state of the programmed array. Aspects of the invention include monitoring for incorrectly programmed or unprotected secure data, and in the event such problems arise, programming all cells of the array in order to scuttle the programmed secure data and/or the device information specific to the IC to place the device into an invalid state. According to other aspects of the invention, preferred embodiments of the systems and methods include serially programming secure data into multiple arrays.
摘要翻译：提供了将安全数据编程到包括在电子电路中的可编程和不可逆存储器单元中的方法和系统。通常，安全数据存储在集成到诸如IC的电子设备中或与电子设备相关联的一个或多个阵列中。根据本发明的公开方法，可编程和不可逆存储单元阵列具有用于指示阵列的程序状态的控制位。该方法包括读取阵列的控制位以识别可编程状态，加载和编程安全数据，读保护和写保护阵列。控制位被编程为指示编程阵列的不可编程状态。本发明的方面包括监视不正确编程或未受保护的安全数据，并且在发生这些问题的情况下，编程阵列的所有单元以便遮盖编程的安全数据和/或IC特有的设备信息以将设备进入无效状态。根据本发明的其他方面，系统和方法的优选实施例包括将安全数据串行编程成多个阵列。

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