Patent ID: 8592979

Claim:
A conductive pattern structure having a cell region and a peripheral region outside the cell region, the conductive pattern structure comprising: a substrate; a first insulating interlayer disposed on the substrate and extending in the cell region and the peripheral region of the conductive pattern structure; metal wiring on the first insulating interlayer and extending in both the cell region and the peripheral region; a second insulating interlayer on the first insulating interlayer and covering the metal wiring, and first metal contacts and a second metal contact extending through the second interlayer insulating layer, the first metal contacts each contacting the metal wiring in the cell region and the second metal contact contacting the metal wiring in the peripheral region; a third insulating interlayer on the second insulating interlayer and extending in the cell region and the peripheral region; a cell current-distributing conductive pattern extending through the third insulating interlayer in the cell region and constituted by segments of conductive material contacting the first metal contacts, respectively; and a peripheral current-distributing conductive pattern extending through the third insulating interlayer in the peripheral region and contacting the second metal contact.