公开(公告)号：US10236071B1

公开(公告)日：2019-03-19

申请号：US15700152

申请日：2017-09-10

Applicant: NXP B.V.

Inventor： Rajat Kohli ,  Patrick Van De Steeg ,  Jwalant Kumar Mishra ,  Pankaj Agarwal

IPC: G11C17/12 ,  G11C11/40 ,  G11C11/56

Abstract: A read-only memory (ROM) device includes memory cells, bit-line pairs, a virtual ground line, and a programmable metal track. The memory cells are arranged in an array of rows and columns. Each memory cell stores two bits of data. The virtual ground line is disposed vertically and shared by two adjacent columns. The programmable metal track connects a memory cell to the virtual ground line based on a value of the two bits of data stored in the memory cell.