Patent ID: 7864605
Filing Date: 2011-01-04
Classification: G11C

Abstract:
1. An apparatus for removing crosstalk in a semiconductor memory device, comprising; a plurality of pads that receive externally provided signals, a plurality of transmission lines to deliver the received signals from the pads to corresponding elements in the apparatus; and a plurality of capacitors, wherein the plurality of capacitors are each coupled between respective adjacent lines among the plurality of transmission lines for adjusting transmission delays of the signals transmitted on the adjacent lines according to a signal transmission mode between the adjacent lines, and wherein the signal transmission mode includes: a first mode in which signals having the same phase are applied to the adjacent lines; and a second mode in which signals having a 180-degree phase difference are applied to the adjacent lines, wherein in the first mode, the respective capacitor coupled to the adjacent lines adds no delay to the signals transmitted through the respective adjacent lines and in the second mode, the capacitor delays the signals transmitted through the respective adjacent lines.