Patent ID: 6884641
Filing Date: 2005-04-26
Classification: G01R,H01L,Y10S

Abstract:
1. A method for electrically isolating and analyzing site-specific defects in a MOSFET comprising: electrically localizing at least one specific site of at least one defective feature of a MOSFET device; depositing a first cap layer over an exposed metal layer of said MOSFET device to cover said at least one defective feature; forming at least one opening in said first cap layer over said at least one specific site of said at least one defective feature; providing said at least one opening with at least one electrical connection; depositing a second cap layer over a portion of said first cap layer, said second cap layer covering said at least one defective feature and a portion of said electrical connection; removing said first and second cap layers at least within said at least one specific site of said at least one defective feature to obtain a site-specific junction for imaging; forming a conductive coating over said site-specific junction; and analyzing said at least one defective feature within said site-specific junction via imaging.