Patent ID: 6773974
Filing Date: 2004-08-10
Classification: H01L

Abstract:
A method of forming an array of memory devices, the method comprising the steps of:forming an array of memory cells on a semiconductor substrate having a first conductivity type; forming a first plurality of parallel spaced apart lines of conductive material over the substrate that are electrically coupled to the memory cells; forming a second plurality of parallel spaced apart lines of conductive material over the substrate and electrically connected to the memory cells; and forming a strap region on the substrate and adjacent to the memory cell array, the formation of the strap region including the steps of: forming first strap cells in the strap region through which the first plurality of conductive material lines traverse, wherein the first plurality of conductive material lines completely traverse across the strap region, forming a first plurality of conductive metal contacts each of which is connected to one of the first plurality of conductive material lines in one of the first strap cells, forming second strap cells in the strap region in which the second plurality of conductive material lines terminate without completely traversing across the strap region, and forming a second plurality of conductive metal contacts each of which is connected to one of the second plurality of conductive material lines in one of the second strap cells.