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. 21, 2025
Filed:
Nov. 12, 2020
SK Nexilis Co., Ltd., Jeongeup-si, KR;
SK NEXILIS CO., LTD., Jeongeup-si, KR;
Abstract
Provided in one embodiment of the present disclosure is a copper foil, which comprises a copper layer having a matte surface and a shiny surface, and an anticorrosive film arranged on the copper layer, and has a residual stress of 0.5-25 MPa on the basis of the absolute value thereof, wherein the copper layer comprises copper and carbon (C), the amount of carbon (C) in the copper layer is 2-20 ppm, the copper layer has a plane (), a plane (), a plane () and a plane () including crystalline particles, the ratio of the diffraction intensity of the plane () to the sum of the diffraction intensities of the plane (), the plane (), the plane () and the plane () is 10-40%, and the crystalline particles of the plane () have an average particle size of 70-120 nm at room temperature.