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:
Nov. 07, 2023
Filed:
Aug. 04, 2021
Ulsan National Institute of Science and Technology, Ulsan, KR;
Tae Sik Yoon, Seoul, KR;
Abstract
Provided is a semiconductor device including a substrate, a tunneling insulating film disposed on the substrate, a control gate electrode disposed on the tunneling insulating film, a first floating gate electrode disposed between the control gate electrode and the tunneling insulating film, a second floating gate electrode disposed between the first floating gate electrode and the tunneling insulating film, a first control gate insulating film disposed between the first floating gate electrode and the control gate electrode, a second control gate insulating film disposed between the second floating gate electrode and the first floating gate electrode, and a source electrode and a drain electrode disposed on the substrate to be spaced apart from each other with respect to the control gate electrode, wherein the control gate electrode includes a first metal material, wherein the first floating gate electrode includes a second metal material, wherein the second floating gate electrode includes a third metal material, wherein the first to third metal materials are different from each other, wherein an oxidizing power of the second metal material is smaller than an oxidizing power of the first metal material.