The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2016
Filed:
Dec. 25, 2014
Powerchip Technology Corporation, Hsinchu, TW;
Mao-Teng Hsu, Taipei, TW;
Powerchip Technology Corporation, Hsinchu, TW;
Abstract
A resistive random access memory including a substrate, a dielectric layer disposed on the substrate and at least one memory cell string is provided. The memory cell string includes memory cells and second vias. The memory cells are vertically and adjacently disposed in the dielectric layer, and each of the memory cells includes a first via, two conductive lines respectively disposed at two sides of the first via and two variable resistance structures respectively disposed between the first via and the conductive lines. In the vertically adjacent two memory cells, the variable resistance structures of the upper memory cell and the variable resistance structures of the lower memory cell are isolated from each other. The second vias are respectively disposed in the dielectric layer under the first vias and connected to the first vias, and the vertically adjacent two first vias are connected by the second via.