Title:
ELECTROMAGNETIC WAVE SHIELDING SHEET, METHOD FOR MANUFACTURING SAME, AND ELECTRONIC DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2024/049273
Kind Code:
A1
Abstract:
Provided is a method for manufacturing an electromagnetic wave shielding sheet. An electromagnetic wave shielding sheet according to an embodiment of the present invention may be manufactured by the steps of: (1) manufacturing an electromagnetic wave shielding part having a thickness of 100 μm or greater by electroless-plating a fiber web layer which satisfies relational expression (a) d2 ≤ d3 < d1 (wherein d1, d2, and d3 are the densities of a first fiber web, a second fiber web, and a third fiber web, respectively) and in which the first fiber web, the second fiber web, and the third fiber web are sequentially stacked; and (2) laminating a first conductive adhesive member on one surface of the electromagnetic wave shielding part on the electroless-plated first fiber web side and laminating a second member on one surface of the electromagnetic wave shielding part on the electroless-plated third fiber web side. Thus, the electromagnetic wave shielding sheet has excellent vertical shielding performance, prevents the lateral leakage of electromagnetic waves, has a good close contact even with a curved or stepped surface to be attached due to the excellent flexibility thereof, and has excellent compression characteristics, and therefore, it may be possible to realize an electromagnetic wave shielding sheet that can be used in various mounting areas that may have thickness tolerances.
Inventors:
JANG GEUNYOUNG (KR)
LIM SEAYOUNG (KR)
LEE HYO-JUNG (KR)
LEE GYU MIN (KR)
SEO IN-YONG (KR)
KIM JIN HAN (KR)
KIM KYUNG SU (KR)
LIM SEAYOUNG (KR)
LEE HYO-JUNG (KR)
LEE GYU MIN (KR)
SEO IN-YONG (KR)
KIM JIN HAN (KR)
KIM KYUNG SU (KR)
Application Number:
PCT/KR2023/013099
Publication Date:
March 07, 2024
Filing Date:
September 01, 2023
Export Citation:
Assignee:
AMOGREENTECH CO LTD (KR)
International Classes:
H05K9/00; B32B7/12
Foreign References:
| KR20190011071A | 2019-02-01 | |||
| KR20210101992A | 2021-08-19 | |||
| KR20190019874A | 2019-02-27 | |||
| JP5722775B2 | 2015-05-27 | |||
| KR20170116062A | 2017-10-18 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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