Patent ID: 8062984
Filing Date: 2011-11-22
Classification: B23K,H01L,H05K

Abstract:
1. A method of fabricating an electronic device, the device comprising a plurality of layers on a substrate, the layers including an upper conductive layer and at least one patterned underlying layer between said conductive layer and said substrate, the method comprising: patterning said underlying layer; and patterning said upper conductive layer by laser ablation using a stepwise process in which successive areas of said upper conductive layer are ablated by successively applied laser patterns; wherein said successively applied laser patterns overlap one another in an overlap region; and wherein said method further comprises configuring a said laser pattern and said patterned underlying layer laterally with respect to one another such that in a said overlap region said patterned underlying layer is substantially undamaged by said stepwise laser ablation.