Adhesives Blog


An Alternative to Solder?

October 27, 2008
/ Print / Reprints /
ShareMore
/ Text Size+

A new nanotube-based dry adhesive has been created to replace solder in circuit-board assembly. The adhesive, which has very high electrical and thermal conductivity, models its sticking power on the foot of the gecko lizard. It works without heat or solvents, permitting use in the vacuum environments used to make chips and in space.

"This will be useful to put electronic components together because the nanotubes have very high thermal conductivity," said professor Liming Dai at Ohio's University of Dayton.

Carbon nanotubes, which have very high electron mobility, enable the adhesive to be used to assemble chips on boards without the heat of soldering. The researchers are also experimenting with patterning the material onto chips themselves.

"We grow (the nanotubes) on silicon wafers, because we use silicon wafers for electronic applications. We can pattern at the microscopic level," said Dai. "If you use this kind of adhesive to put transistors together into circuits, the adhesive will remove the heat generated by the current."

The adhesive force measured by the researchers was similar to that of a gecko's foot - up to 100 Newtons per centimeter in the shear direction and 10 N/cm in the perpendicular direction.

Read more here.


You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

ASI April 2014 Photo Gallery

Our April 2014 issue is now available!

Podcasts

ExxonMobil Tackifier Expansion

Dwight Tozer, vice president of ExxonMobil’s Adhesion Industry business, discusses the company’s latest tackifier expansion project with Editor-in-Chief Susan Sutton.

More Podcasts

Adhesives & Sealants Industry Magazine

ASI Sept 2014 cover

2014 September

Our September issue features articles focusing on high-tech applications and raw materials, as well as a preview of the ASC Fall Convention and Expo. Check it out today!

Table Of Contents Subscribe

THE ADHESIVES STORE

handbook-sealant-tech.gif
Handbook of Sealant Technology

The Handbook of Sealant Technology provides an in-depth examination of sealants, reviewing their historical developments and fundamentals, adhesion theories and properties, and today’s wide range of applications.

More Products

ASI 2014 Buyers GuideASI's Buyers' Guide

Annual purchasing resource for equipment used in the manufacture/formulation of adhesives, sealants, pressure sensitives, tapes and labels and for application of finished adhesives. 

Clear Seas Research

With access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

STAY CONNECTED

facebook_40px twitter_40  youtube_40pxlinkedin_40 google+ icon ASI 30px