Electromagnetic wave shielding heat-radiation sheet and manufactured method thereof
AssigneeNano Interface Technology
InventorJin-Ho Song
Life of this patent
Estimating the term…
Abstract
Disclosed is an electromagnetic wave shielding heat-radiation sheet allowing electricity and heat to be transferred from one side surface to the other side surface of the sheet, in which conductive protrusions formed by partially cutting a conductive layer laminated on an elastic support layer are bent toward the rear surface of the elastic support layer to pass through the elastic support layer and come in contact with the rear surface of the elastic support layer.
Claims19
An electromagnetic wave shielding heat-radiation sheet comprising:
- an elastic support layer;
- and at least one conductive layer laminated on one surface or both surfaces of the elastic support layer,
- wherein, in the elastic support layer, multiple perforated portions are formed at a predetermined interval;
- in the conductive layer, conductive protrusions are formed by partially cutting the conductive layer, which are coaxial to the perforated portions;
- and
- the conductive protrusions are bent toward a rear surface of the elastic support layer to pass through the elastic support layer via the perforated portions, and protrude from the rear surface of the elastic support layer to come in contact with the rear surface of the elastic support layer.
An electromagnetic wave shielding heat-radiation sheet comprising:
- an elastic support layer;
- and at least one conductive layer laminated on one surface or both surfaces of the elastic support layer,
- wherein, in the elastic support layer, multiple elastic protrusions are formed by partially cutting the elastic support layer at a predetermined interval;
- the elastic protrusions are bent toward a rear surface of the elastic support layer to come in contact with the rear surface of the elastic support layer;
- in the conductive layer, conductive protrusions are formed by partially cutting the conductive layer, which are coaxial to the elastic protrusions;
- and
- the conductive protrusions are bent, together with the elastic protrusions, toward the rear surface of the elastic support layer to pass through the elastic support layer, and protrude from the rear surface of the elastic support layer to come in contact with the rear surface of the elastic support layer.
A method of manufacturing an electromagnetic wave shielding heat-radiation sheet, the method comprising the steps of:
- (a) forming each of an elastic support layer and a conductive layer;
- (b) forming perforated portions in the elastic support layer by using a first punching machine;
- (c) laminating the conductive layer on at least one surface of the elastic support layer having the perforated portions formed therein;
- and
- (d) forming conductive protrusions in the conductive layer at a predetermined interval by partially cutting the conductive layer coaxial to the perforated portions by using a second punching machine,
- wherein, in step (d), the conductive protrusions are formed by cutting, while being bent toward a rear surface of the elastic support layer by a cutting force to pass through the elastic support layer via the perforated portions, and protruding from the rear surface of the elastic support layer to come in contact with the rear surface of the elastic support layer.
A method of manufacturing an electromagnetic wave shielding heat-radiation sheet, the method comprising the steps of:
- (i) forming each of an elastic support layer and a conductive layer;
- (ii) laminating the conductive layer on at least one surface of the elastic support layer;
- and
- (iii) forming conductive protrusions in the conductive layer, and at the same time forming elastic protrusions in the elastic support layer by partially cutting the elastic support layer and the conductive layer at a predetermined interval by using a punching machine,
- wherein, in step (iii), the conductive protrusions are formed by cutting, while being bent, together with the elastic protrusions, toward a rear surface of the elastic support layer by a cutting force to pass through the elastic support layer, and protruding from the rear surface of the elastic support layer to come in contact with the rear surface of the elastic support layer.
Dependencies are inferred from the claim text.