US 12,341,145 B2
Method for forming conductive pattern and display device including conductive pattern
Jun Woo You, Seongnam-si (KR); Byoung Dae Ye, Yongin-si (KR); Tae Ho Lee, Hwaseong-si (KR); and Atsushi Nemoto, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jul. 29, 2020, as Appl. No. 16/941,606.
Claims priority of application No. 10-2019-0169822 (KR), filed on Dec. 18, 2019.
Prior Publication US 2021/0193686 A1, Jun. 24, 2021
Int. Cl. H01L 27/12 (2006.01); G02F 1/1362 (2006.01)
CPC H01L 27/124 (2013.01) [G02F 1/136286 (2013.01); H01L 27/1288 (2013.01); G02F 1/136295 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A conductive pattern forming method comprising:
sequentially forming a release layer and a conductive layer on one side of a transfer substrate, the release layer being disposed between the transfer substrate and the conductive layer;
placing a mask on the other side of the transfer substrate;
irradiating first intense pulsed light (IPL) to a first surface of a substrate without a mask overlapping the substrate to heat the substrate, the first IPL being irradiated directly to the substrate without any other layer disposed between the first IPL and the substrate;
placing the transfer substrate on the substrate which is irradiated and heated by the first IPL without forming an additional layer on the substrate; and
transferring a portion of the conductive layer, corresponding to an opening of the mask onto the substrate by irradiating second IPL to the transfer substrate to form a conductive pattern on the first surface of the substrate,
wherein no portion of the release layer is transferred onto the substrate during the transferring the portion of the conductive layer.