公开(公告)号：US11877402B2

公开(公告)日：2024-01-16

申请号：US18086848

申请日：2022-12-22

Applicant: LUMET TECHNOLOGIES LTD.

Inventor： Benzion Landa ,  Naomi Elfassy ,  Stanislav Thygelbaum

IPC: H05K3/20 ,  H05K3/38 ,  B41M1/12 ,  H01L31/0224 ,  H05K3/34 ,  H05K1/03 ,  H05K1/09 ,  H01L31/0216 ,  H01L31/0392 ,  H01L31/20 ,  H05K1/16

CPC classification number: H05K3/207 ,  B41M1/12 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/022433 ,  H01L31/03926 ,  H01L31/206 ,  H05K1/0393 ,  H05K1/092 ,  H05K3/3485 ,  H05K3/386 ,  H05K1/165 ,  H05K2201/0195 ,  H05K2201/035 ,  H05K2201/0338 ,  H05K2201/0391 ,  H05K2201/10098 ,  H05K2203/0139 ,  H05K2203/1105 ,  H05K2203/1131 ,  H05K2203/1476 ,  H05K2203/1545 ,  Y02E10/50

Abstract: A method is disclosed for applying an electrical conductor to a solar cell, which comprises providing a flexible membrane with a pattern of groove formed on a first surface thereof, and loading the grooves with a composition comprising conductive particles. The composition is, or may be made, electrically conductive. Once the membrane is loaded, the grooved first surface of the membrane is brought into contact with a front or/and back of a solar cell. A pressure is then applied between the solar cell and the membrane(s) so that the composition loaded to the grooves adheres to the solar cell. The membrane(s) and the solar cell are separated and the composition in the groove is left on the solar cell surface. The electrically conductive particles in the composition are then sintered or otherwise fused to form a pattern of electrical conductor on the solar cell, the pattern corresponding to the pattern formed in the membrane(s).

公开(公告)号：US11570902B2

公开(公告)日：2023-01-31

申请号：US17151664

申请日：2021-01-19

Applicant: Lumet Technologies LTD.

Inventor： Benzion Landa ,  Naomi Elfassy ,  Stanislav Thygelbaum

IPC: H05K3/20 ,  H05K3/38 ,  B41M1/12 ,  H01L31/0224 ,  H05K3/34 ,  H05K1/03 ,  H05K1/09 ,  H01L31/0216 ,  H01L31/0392 ,  H01L31/20 ,  H05K1/16

Abstract: A method is disclosed for applying an electrical conductor to a solar cell, which comprises providing a flexible membrane with a pattern of groove formed on a first surface thereof, and loading the grooves with a composition comprising conductive particles. The composition is, or may be made, electrically conductive. Once the membrane is loaded, the grooved first surface of the membrane is brought into contact with a front or/and back of a solar cell. A pressure is then applied between the solar cell and the membrane(s) so that the composition loaded to the grooves adheres to the solar cell. The membrane(s) and the solar cell are separated and the composition in the groove is left on the solar cell surface. The electrically conductive particles in the composition are then sintered or otherwise fused to form a pattern of electrical conductor on the solar cell, the pattern corresponding to the pattern formed in the membrane(s).

公开(公告)号：US10973129B2

公开(公告)日：2021-04-06

申请号：US16258808

申请日：2019-01-28

Applicant: LUMET TECHNOLOGIES LTD.

Inventor： Benzion Landa ,  Naomi Elfassy ,  Stanislav Thygelbaum

IPC: H05K3/20 ,  H05K3/38 ,  H01L31/0224 ,  H05K3/34 ,  H05K1/03 ,  H05K1/09 ,  H01L31/0216 ,  H01L31/0392 ,  H01L31/20 ,  B41M1/12 ,  H05K1/16

Abstract: A method is disclosed for applying an electrical conductor to a solar cell, which comprises providing a flexible membrane with a pattern of groove formed on a first surface thereof, and loading the grooves with a composition comprising conductive particles. The composition is, or may be made, electrically conductive. Once the membrane is loaded, the grooved first surface of the membrane is brought into contact with a front or/and back of a solar cell. A pressure is then applied between the solar cell and the membrane(s) so that the composition loaded to the grooves adheres to the solar cell. The membrane(s) and the solar cell are separated and the composition in the groove is left on the solar cell surface. The electrically conductive particles in the composition are then sintered or otherwise fused to form a pattern of electrical conductor on the solar cell, the pattern corresponding to the pattern formed in the membrane(s).

公开(公告)号：US11751336B2

公开(公告)日：2023-09-05

申请号：US17994551

申请日：2022-11-28

Applicant: LUMET TECHNOLOGIES LTD.

Inventor： Benzion Landa ,  Haim Touitou ,  Stanislav Thygelbaum ,  Naomi Elfassy

IPC: H05K3/20 ,  H05K3/38 ,  B41M1/12 ,  H01L31/0224 ,  H05K3/34 ,  H05K1/03 ,  H05K1/09 ,  H01L31/0216 ,  H01L31/0392 ,  H01L31/20 ,  H05K1/16

CPC classification number: H05K3/207 ,  B41M1/12 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/022433 ,  H01L31/03926 ,  H01L31/206 ,  H05K1/0393 ,  H05K1/092 ,  H05K3/3485 ,  H05K3/386 ,  H05K1/165 ,  H05K2201/0195 ,  H05K2201/035 ,  H05K2201/0338 ,  H05K2201/0391 ,  H05K2201/10098 ,  H05K2203/0139 ,  H05K2203/1105 ,  H05K2203/1131 ,  H05K2203/1476 ,  H05K2203/1545 ,  Y02E10/50

Abstract: An apparatus is disclosed for transferring a pattern of a composition containing particles of an electrically conductive material and a thermally activated adhesive from a surface of a flexible web to a surface of a substrate. The apparatus comprises:



respective drive mechanisms for advancing the web and the substrate to a nip through which the web and the substrate pass at the same time and where a pressure roller acts to press the surfaces of the web and the substrate against one another,
a heating station for heating at least one of the web and the substrate prior to, or during, passage through the nip, to a temperature at which the adhesive in the composition is activated,
a cooling station for cooling the web after passage through the nip, and
a separating device for peeling the web away from the substrate after passage through the cooling station, to leave the pattern of composition adhered to the surface of the substrate.