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:
Jul. 02, 2019
Filed:
Jul. 26, 2017
Winbond Electronics Corp., Taichung, TW;
WINBOND ELECTRONICS CORP., Taichung, TW;
Abstract
A resistive random access memory (RRAM) structure and its forming method are provided, which includes an interlayer dielectric layer on a substrate. The interlayer dielectric layer is a dielectrics including oxygen. The RRAM structure also includes an oxygen-diffusion barrier layer on the interlayer dielectric layer, and a bottom electrode layer on the oxygen-diffusion barrier layer. The bottom electrode layer includes a first electrode layer, a first oxygen-rich layer on the first electrode layer, and a second electrode layer on the first oxygen-rich layer. The RRAM structure also includes a resistance switching layer on the bottom electrode layer, and a top electrode layer on the resistance switching layer.