Patent ID: 9257484
Filing Date: 2016-02-09
CPC Classification: G11C,H01L

Claim Text:
1. A non-volatile memory device comprising: a memory cell forming region having a memory cell array layer where a plurality of non-volatile memory cells are formed in a matrix shape; a first wiring hookup region in which a plurality of first wirings are formed by being drawn outside of the memory cell forming region, the first wirings being connected to the non-volatile memory cell in the memory cell forming region, the first wirings extending in a first direction; a second wiring hookup region in which a plurality of second wirings are formed by being drawn outside of the memory cell forming region, the second wirings being connected to the non-volatile memory cell in a layer above the first wirings in the memory cell forming region, the second wirings extending in a second direction, the second direction intersecting the first direction; a first dummy wiring connected to the second wiring; and a contact connection portion that is provided at an end of the second wiring in the second wiring hookup region, the contact connection portion being wider than the second wiring in a direction that is perpendicular to a direction in which the second wiring extends, wherein the first dummy wiring is connected to the second wiring that has a smaller area than an area of a first reference wiring so that a sum of an area of the first dummy wiring and an area of the second wiring that has a smaller area than the area of the first reference wiring, is the same as the area of the first reference wiring, the first reference wiring being at least one of the following: the second wiring that has the largest area, or a set of the second wiring and the first dummy wiring that has the largest area, each of the non-volatile memory cells is arranged at each intersection portion of the first wiring and the second wiring so that each of the non-volatile memory cells is interposed, one end of the non-volatile memory cell being connected to the first wiring, the other end of the non-volatile memory cell being connected to the second wiring, and the first dummy wiring is connected to the second wiring via the contact connection portion.