A lens includes a gradient index of refraction and a curved shape. A method of making the lens includes forming a plurality of layers, forming a shaped resist on the plurality of layers, and etching the resist and the plurality of layers to transfer the shape of the resist into the plurality of layers.

 
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< Semiconductor device having a fuse and method of forming thereof

> Atomic layer deposition of Dy doped HfO.sub.2 films as gate dielectrics

> Multiple level cell phase-change memory devices having controlled resistance drift parameter, memory systems employing such devices and methods of reading memory devices
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