Musterübertragungsdruckverfahren zum Drucken von Ultrafeinen Linien

Details

Veröffentlichungs-Nr.

EP4719005

Anmeldetag

3. September 2025

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

H10F71/00, H10F77/20, H01B1/00(MATUSOVSKY MIKHAEL et al.)(DU PONT et al.)

Abstract

Pattern transfer printing (PTP) methods are provided, which comprise: (i) handling a tape with multiple pattern transfer sheets having patterns of trenches, to controllably deliver the pattern transfer sheets for paste filling and consecutively for pattern transfer, (ii) mixing, continuously and uniformly, at least two types of conductive printing pastes having different particle sizes and/or at least one type of conductive printing paste with a NIR (near infrared) absorbing dye - to form a uniform paste mixture, (iii) filling the trenches on the delivered pattern transfer sheets with the paste mixture, (iv) controllably delivering wafers for the pattern transfer, and (v) transferring the paste mixture from the pattern transfer sheets onto the delivered wafers, by releasing the paste mixture from the trenches upon illumination by a laser beam. The methods yield highly accurate, ultrafine conductive lines, e.g., for photovoltaic (PV) applications.

Anmelder

Firma

Wuhan Dr Laser Technology Corp., Ltd.

Land

🇨🇳 China

Fachgebiete