Case: Patents/Anticipation & Obviousness (P.T.A.B.)

Challenged claims of a patent that discloses and claims a method of conditioning a CMP pad are unpatentable as anticipated by and obvious over prior art, the Patent Trial and Appeal Board said, in an inter partes review by Samsung Electronics Co. Ltd., Samsung Electronics America Inc., Samsung Semiconductor Inc., and Samsung Austin Semiconductor LLC. The board determined that the challenged claims are anticipated by and obvious over various combinations of prior art, including prior art that relates generally to tools having superabrasive particles embedded in an organic material matrix and associated methods, that discloses a polishing composition and polishing ...