Patent ID: 8736026
Filing Date: 2014-05-27
Classification: B23K,B26D,B26F,C03C,H01L,H03B,H03K,H05K,Y10T

Abstract:
1. A method of generating a structure in a substrate, comprising the following a) and b) in order: a) melting a volume of material of a substrate, which is electrically insulating or semiconducting at room temperature, by heating the volume of material with a heat source to form a molten volume, wherein the volume of material extends fully or partially from a first surface of the substrate to a second surface of the substrate, and the second surface is opposite of the first surface; b) removing the molten volume by applying a voltage across the substrate with two electrodes connected to a voltage source and placed at a distance from, and on opposite sides of, the substrate, wherein such removing is initiated once the volume of material is molten, thereby generating the structure in the substrate, wherein the structure comprises at least one hole, recess, well, or array thereof, wherein said method is suited for generating a structure in a substrate, wherein the structure comprises an array of holes or recesses or wells in a substrate and wherein the holes or recesses or wells have a distance between them which is <500 μm.