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Article: Screen printing for high-density flexible electronics: new paste materials and advances in screen-printing equipment create a flexible opportunity.(FLEX CIRCUIT MANUFACTURING)
- Article from:
- Printed Circuit Design & Fab
- Article date:
- October 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 UP Media Group, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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It has always been an industry vision to build electronic circuits on a substrate by means of a simple printing process. It could be one of the reasons why they were named printed circuit boards. This vision has finally been realized by screen printing conductive pastes onto flexible substrates.
In the early era, this technology was applied only to low-technology circuits because screen printing was a low-resolution process not capable of fine-line circuitization, and there was a lower reliability in the material sets used. Instead, the wet etching process with photolithography that uses copper-clad laminate materials has been employed as the manufacturing ...