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

The Patent Trial and Appeal Board determined that challenged claims of Yangtze Memory Technologies Company Ltd.'s patent directed to a staircase structure for a memory device are unpatentable as obvious over prior art, in an inter partes review by Micron Technology Inc. The board said that the challenged claims are obvious over prior art directed to semiconductor memory devices having enhanced reliability, and to a semiconductor device that includes a stack of alternating first interlayer insulating layers and gate electrodes on a
substrate.
This summary was produced by Bloomberg Law Automation and edited by Bloomberg Law staff.