发明授权
- 专利标题: Semiconductor integrated circuit device having test circuit
- 专利标题(中): 具有测试电路的半导体集成电路器件
-
申请号: US978067申请日: 1992-11-18
-
公开(公告)号: US5369646A公开(公告)日: 1994-11-29
- 发明人: Junichi Shikatani
- 申请人: Junichi Shikatani
- 申请人地址: JPX Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX1-266662 19891013
- 主分类号: G01R31/317
- IPC分类号: G01R31/317 ; G01R31/28 ; G01R31/3185 ; G11C7/10 ; G11C29/00 ; G11C29/12 ; H01L21/82 ; H01L21/822 ; H01L27/04 ; H03K19/177 ; H04B17/00
摘要:
A semiconductor integrated circuit device includes a logic cell array having a plurality of logic cells arranged in a matrix having a plurality of rows and columns. The logic cells respectively have input terminals and output terminals. Also, the device includes interconnection lines mutually connecting the logic cells via the input and output terminals of the logic cells so that desired logic circuits are formed, and a plurality of switches which are respectively provided for the logic cells and selectively connect the output terminals of the logic cells to the interconnection lines. Further, the device includes a test circuit for directly supplying the input terminals of the logic cells with desired data used for testing the semiconductor integrated circuit device in a state where a plurality of switches selectively disconnect the output terminals of the logic cells from the interconnection lines. The output line of a cell is disconnected from the interconnection line to the input of the following cell. The interconnection line is then connected to an input/output line which is switched to an input state and the desired test signal is supplied to the input of the following cell. The state of the following cell can then be evaluated to delete errors in the cell performance.
公开/授权文献
- US5958813A Semi-insulating aluminum nitride sintered body 公开/授权日:1999-09-28
信息查询