Patent ID: 6592443
Filing Date: 2003-07-15
Classification: B24B,B24D,H01L

Abstract:
A planarizing pad for planarizing a microelectronic substrate, formed by the process comprising:selectively irradiating a first portion of a first surface of a planarizing pad material with a selected radiation without irradiating a second portion of the first surface of the planarizing pad material adjacent to the first portion; forming a plurality of recesses and contact elements at the first surface of the planarizing pad material by exposing the planarizing pad material to a solvent to remove material from one of the first and second portions of the planarizing pad material at a greater rate than removing material from the other of the first and second portions, the recesses being configured to support a planarizing liquid proximate to the first surface of the planarizing pad material during planarization of the microelectronic substrate, the contact elements having engaging portions defining a generally flat plane; selecting a substrate material to transmit the selected radiation; attaching the substrate material to a second surface of the planarizing pad material to support the planarizing pad material, the second surface facing opposite from the first surface; and exposing the second surface to the selected radiation to cure the planarizing pad material to a selected level from the second surface by irradiating the substrate material with the selected radiation.