Patent ID: 7107467
Filing Date: 2006-09-12
Classification: G11C

Abstract:
1. A circuit for removing noise from an internal power line of a semiconductor memory device, the internal power line for supplying power to a memory cell array of the memory device, said circuit comprising: a plurality of decoupling capacitor groups which remove noise from the internal power line, each group including at least one DRAM cell type decoupling capacitor, each DRAM cell type decoupling capacitor having a first terminal coupled to the internal power line and a second terminal; and a repair circuit unit which selectively connects individual ones of the plurality of decoupling capacitor groups to an external input power line, wherein the second terminal of each DRAM cell type decoupling capacitor of each group connected to the external input power line is connected to the external input power line, and wherein the second terminal of each DRAM cell type decoupling capacitor of each group not connected to the external input power line is not connected to the external input power line.