| 摘要 |
PURPOSE:To improve the yield of a chip and to reduce a chip unit price by providing a redundancy switching circuit with high relief efficiency by suppressing the increment of a chip area and the increment of power consumption and delay time by a redundant block to the minimum. CONSTITUTION:This circuit is a redundant block switching circuit 2 with the structure in which one of 3 to (N+1) of first functional blocks (N+1) is selected and it can be connected to second functional blocks in one to one in an LSI with the structure in which M first functional blocks, N(1<N<M) first functional blocks as redundant functional blocks, M second functional blocks corresponding to the first functional blocks one to one, and the redundancy switching circuit to select the connection of the first functional blocks and the second functional blocks are included in one chip.
|
