Patent ID: 8608972

Claim:
A method for etching a feature into a substrate, the method comprising: (a) providing a stamp having a surface including at least one indentation therein, the at least one indentation being contiguous with and defining a pattern in the surface of the stamp, wherein the surface and the at least one indentation are hydrophilic; (b) applying an etch paste to the surface and the at least one indentation of the stamp to provide a coated stamp; (c) conformally contacting the surface of the coated stamp with a substrate; (d) applying pressure to a backside of the stamp to isolate the etch paste on an area of the substrate adjacent to the at least one indentation and substantially remove etch paste from between the surface of the stamp and the substrate; and (e) reacting the etch paste with the substrate for a period of time sufficient to etch a feature into the substrate having at least one lateral dimension of about 1 μm to about 25 μm and etch another feature into the substrate having at least one lateral dimension of about 100 μm or greater, wherein the reacting is isolated on an area of the substrate adjacent to the at least one indentation.