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:
Feb. 18, 2025
Filed:
Nov. 05, 2020
SK Nexilis Co., Ltd., Jeongeup-si, KR;
Young Tae Kim, Jeongeup-si, KR;
Sang Hyun Jun, Jeongeup-si, KR;
Jeong Gil Lee, Jeongeup-si, KR;
Seung Min Kim, Jeongeup-si, KR;
SK NEXILIS CO., LTD., Jeongeup-si, KR;
Abstract
One embodiment of the present disclosure provides an electrolytic copper foil includes a copper layer and has a width direction weight deviation of 5% or less calculated according to Equation 1 below, a tensile strength of 25 kgf/mmto 62 kgf/mm, and a valley depth-to-thickness (VDT) of 3.5 to 66.9 calculated according to Equation 2 below.width direction weight deviation (%)=(standard deviation of weight/arithmetic mean of weight)×100, and [Equation 1]VDT=[thickness of electrolytic copper foil]/[maximum valley depth of roughness profile()]. [Equation 2]