Patent ID: 6627478
Filing Date: 2003-09-30
Classification: H01L

Abstract:
A method of making a microelectronic assembly comprising:(a) providing a first element having a first surface and a plurality of leads extending over said first surface, said leads having anchor ends attached to said first element and tip ends remote from said anchor ends, the tip ends being releasably attached to said first element; (b) connecting said tip ends of said leads to a second element, said releasable attachment maintaining said tip ends in position relative to said first element at least until commencement of said connecting step; (c) causing differential expansion or contraction of said elements so as to move said tip ends relative to said first element and break at least some of said releasable attachments, and then wherein said step of causing differential expansion or contraction includes altering the temperature of at least one of said elements by a different amount than the other one of said elements.