Patent ID: 6503847
Filing Date: 2003-01-07
Classification: B81C,C08J,C09J,H01L

Abstract:
A method for forming a bond between similar or dissimilar material or material composite substrates at room temperature (23Â° C.), without the application of electrical potential differences or high pressures to or between said substrates, comprising:providing a first and second substrate, wherein the surface of each of said substrates may have projections or cavities that vary by no more than 0.5 microns from said surface level; forming on the surface of said second substrate a layer of polydimethylsiloxane solution; pre-curing said polydimethylsiloxane solution form on said second substrate surface at room temperature (23Â° C.) for a time of between approximately 5 and approximately 10 minutes; bringing the surface of said first material substrate into contact with the said polydimethylsiloxane coated surface of said second material substrate; exerting sufficient pressure between said two surfaces to assure they are fully in contact and that most air bubbles between said surfaces have been removed; curing the resulting formation at room temperature (23Â° C.) for at least 4 hours to create the final bond.