Patent ID: 9362127
Filing Date: 2016-06-07
CPC Classification: H01L

Claim Text:
1. A method for processing a workpiece, the method comprising: providing a workpiece comprising a first region and a second region; forming a porous metal layer over the first region and the second region; wherein the first region and the second region are configured such that an adhesive force between the second region and the porous metal layer is lower than an adhesive force between the first region and the porous metal layer, wherein at least one of the following conditions is satisfied: 1) the adhesive force between the second region and the porous metal layer is such that the porous metal layer detaches from the second region upon application of a force of less than or equal to about 50 kg/cm 2) the adhesive force between the first region and the porous metal layer is such that the porous metal layer withstands a force of greater than or equal to about 100 kg/cm