US 11,656,545 B2
Roll stamp for imprint device, and manufacturing method therefor
Man Kim, Changwon-si (KR); Joo Yul Lee, Gimhae-si (KR); Sang Yeoul Lee, Gimhae-si (KR); and Ju Yeong Lee, Changwon-si (KR)
Assigned to KOREA INSTITUTE OF MACHINERY & MATERIALS, Daejeon (KR)
Appl. No. 16/764,483
Filed by KOREA INSTITUTE OF MACHINERY & MATERIALS, Daejeon (KR)
PCT Filed Nov. 15, 2018, PCT No. PCT/KR2018/013999
§ 371(c)(1), (2) Date May 15, 2020,
PCT Pub. No. WO2019/098705, PCT Pub. Date May 23, 2019.
Claims priority of application No. 10-2017-0154668 (KR), filed on Nov. 20, 2017; application No. 10-2017-0154673 (KR), filed on Nov. 20, 2017; application No. 10-2018-0071534 (KR), filed on Jun. 21, 2018; and application No. 10-2018-0071553 (KR), filed on Jun. 21, 2018.
Prior Publication US 2020/0355998 A1, Nov. 12, 2020
Int. Cl. G03F 7/00 (2006.01); C25D 1/10 (2006.01); C23C 18/16 (2006.01); B29C 33/38 (2006.01); B29C 59/04 (2006.01); B29C 33/42 (2006.01)
CPC G03F 7/0002 (2013.01) [B29C 33/3878 (2013.01); B29C 33/42 (2013.01); B29C 59/04 (2013.01); C23C 18/1651 (2013.01); C23C 18/1653 (2013.01); C25D 1/10 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of manufacturing a roll stamp, the method comprising:
providing an object including a first embossed pattern;
placing a first resin layer on an upper surface of the object including the first embossed pattern and pressing the first resin layer;
manufacturing a first resin mold including a first debossed pattern by separating the first resin layer from the object;
forming a first metal layer on an upper portion of the first resin mold including the first debossed pattern;
manufacturing a first metal mold including a second embossed pattern by separating the first metal layer from the first resin mold;
forming a second metal layer on an upper portion of the first metal mold including the second embossed pattern;
manufacturing a second metal mold including a second debossed pattern by separating the second metal layer from the first metal mold;
placing a second resin layer on an upper surface of the second metal mold including the second debossed pattern and pressing the second resin layer;
manufacturing a second resin mold including a third embossed pattern by separating the second resin layer from the second metal mold;
manufacturing a cylindrical resin mold by rolling the second resin mold so that the third embossed pattern is placed on an inner circumference side of the cylindrical resin mold;
forming a third metal layer having a cylindrical shape on the inner circumference of the cylindrical resin mold;
manufacturing a cylindrical metal mold including a third debossed pattern formed on an outer side and a hollow portion formed on an inner side by separating the third metal layer having a cylindrical shape from the cylindrical resin mold;
arranging dies at a predetermined distance from the cylindrical metal mold;
filling a space between the cylindrical metal mold and the dies with a filler;
manufacturing a cylindrical filler mold including a fourth embossed pattern formed on an inner circumference and a hollow portion formed on an inner side by separating the dies and the cylindrical metal mold from the filler;
filling the hollow portion of the cylindrical filler mold with a metal material; and
separating the cylindrical filler mold from the filled metal material.