UV direct-writing of metals on polyimide substrates

Ng, Jack; Desmulliez, Marc Phillipe Yves; Lamponi, M.; Moffat, B.G.; Walker, A. C.; McCarthy, Aongus; Suyal, H.; Prior, K. A.; Hand, Duncan Paul

doi:10.1109/estc.2008.4684434

Cited by 1 publication

(1 citation statement)

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“…This rigid coating allows the metallisation process to be carried out in air as well as on contoured surfaces. A long helix metal track on a cylindrical polyimide substrate was fabricated by laser direct‐writing, whose set‐up is shown in Figure 12 (Ng et al , 2008b). This 3D patterning technology is envisaged to enable the manufacturing of advanced 3D interconnection for packaging.…”

Section: Laser Direct‐writingmentioning

confidence: 99%

A direct‐writing approach to the micro‐patterning of copper onto polyimide

Desmulliez

Lamponi

et al. 2009

Circuit World

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Access to this document was granted through an Emerald subscription provided by emerald-srm:198285 [] For AuthorsIf you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to present a novel manufacturing process that aims to pattern metal tracks onto polyimide at atmospheric pressure and ambient environment. The process can be scaled up for industrial applications. Design/methodology/approach -From a thorough literature survey, different approaches were carried out for processing polyimide. Following a design of experiments for the processing and various characterisation techniques, a micro-coil was manufactured as a test demonstrator. Findings -The characteristics of some main formaldehyde-based electroless copper baths were compared. The quality of the sidewalls was characterised and the performance of the process was assessed. Originality/value -This paper demonstrates a high-value manufacturing technique that is mass manufacturable, low cost and suitable for use on 3D surfaces. Criteria required for the development of a direct-writing process have been described. The issues surrounding electroless plating on polyimide have been explained.

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Section: Laser Direct‐writingmentioning

confidence: 99%