发明授权
- 专利标题: High-speed testing of integrated devices
- 专利标题(中): 集成设备的高速测试
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申请号: US12110955申请日: 2008-04-28
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公开(公告)号: US08108739B2公开(公告)日: 2012-01-31
- 发明人: Chad A. Adams , Derick G. Behrends , Todd A. Christensen , Travis R. Hebig
- 申请人: Chad A. Adams , Derick G. Behrends , Todd A. Christensen , Travis R. Hebig
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Cantor Colburn LLP
- 主分类号: G11C29/30
- IPC分类号: G11C29/30 ; G11C29/50
摘要:
A method for allowing high-speed testability of a memory device having a core with memory cells for storing data, comprising: enabling a data signal having a first logical state or a second logical state from the core to reach an output port of the memory device within an evaluate cycle during a functional operating mode and pass an array built in self test during LBIST mode; enabling the data signal to change from the first logical state to the second logical state during LBIST mode at a time that coincides with the latest possible time the data signal from the core can reach the read output port within the evaluate cycle during the functional operating mode and pass the array built in self test; and executing a logic built-in self test configured to test a logic block located downstream of a transmission path of the memory device.
公开/授权文献
- US20090271669A1 High-Speed Testing of Integrated Devices 公开/授权日:2009-10-29
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