UV Direct-Writing of Metals on Polyimide

05/07/2008
by   Jack Hoyd-Gigg Ng, et al.
0

Conductive micro-patterned copper tracks were fabricated by UV direct-writing of a nanoparticle silver seed layer followed by selective electroless copper deposition. Silver ions were first incorporated into a hydrolyzed polyimide surface layer by wet chemical treatment. A photoreactive polymer coating, methoxy poly(ethylene glycol) (MPEG) was coated on top of the substrate prior to UV irradiation. Electrons released through the interaction between the MPEG molecules and UV photons allowed the reduction of the silver ions across the MPEG/doped polyimide interface. The resultant silver seed layer has a cluster morphology which is suitable for the initiation of electroless plating. Initial results showed that the deposited copper tracks were in good agreement with the track width on the photomask and laser direct-writing can also fabricate smaller line width metal tracks with good accuracy. The facile fabrication presented here can be carried out in air, at atmospheric pressure, and on contoured surfaces.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 1

page 3

06/11/2018

Pseudorandom Generators for Width-3 Branching Programs

We construct pseudorandom generators of seed length Õ((n)·(1/ϵ)) that ϵ-...
06/13/2018

Automatic counting of fission tracks in apatite and muscovite using image processing

One of the major difficulties of automatic track counting using photomic...
02/12/2016

An automatic method for segmentation of fission tracks in epidote crystal photomicrographs

Manual identification of fission tracks has practical problems, such as ...
05/16/2003

Robust Report Level Cluster-to-Track Fusion

In this paper we develop a method for report level tracking based on Dem...
05/07/2008

Fabrication of Embedded Microvalve on PMMA Microfluidic Devices through Surface Functionalization

The integration of a PDMS membrane within orthogonally placed PMMA micro...
09/09/2018

Fingertip Detection and Tracking for Recognition of Air-Writing in Videos

Air-writing is the process of writing characters or words in free space ...
03/06/2018

RealPen: Providing Realism in Handwriting Tasks on Touch Surfaces using Auditory-Tactile Feedback

We present RealPen, an augmented stylus for capacitive tablet screens th...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.