Patent ID: 8153510
Filing Date: 2012-04-10
Classification: H01L

Abstract:
1. A method for providing visual locators for a semiconductor wafer comprising the steps of: a. providing a semiconductor substrate having a first surface, said substrate configured for fabricating integrated components; b. forming a metal patterned layer above said substrate, said metal patterned layer providing a plurality of interconnects for said integrated components; c. forming metal pads for coupling to a portion of said metal interconnects; d. forming a passivation layer above said metal patterned layer and said substrate; e. covering said passivation layer with an intermediate layer; f. patterning a plurality of first contacts and a plurality of second contacts above said intermediate layer, wherein said plurality of second contacts are dimensionally smaller than the any one of said plurality of first contacts, said contacts forming a contact area; g. etching said plurality of first and second contacts such that said plurality of first contacts etches through said intermediate layer and said second plurality of second contacts partially etches said intermediate layer; and h. forming a thick metal patterned layer above said contact area for providing interconnect to at least a portion of said plurality of first contacts and for providing a dimple pattern for said visual locators.