Patent ID: 7112122
Filing Date: 2006-09-26
Classification: B23H,B24B,C25F

Abstract:
1. A method for removing material from a microelectronic substrate, comprising: disposing an electrolytic liquid between an electrically conductive material of a microelectronic substrate and at least one electrode, the electrolytic liquid having about 80% water or less; contacting the microelectronic substrate with a polishing pad material; electrically coupling the conductive material of the microelectronic substrate to a source of varying electrical signals via the electrolytic liquid and the at least one electrode; applying a varying electrical signal to the conductive material; forming an oxy-methoxide complex with the electrically conductive material; moving at least one of the polishing pad material and the microelectronic substrate relative to the other; and removing at least a portion of the conductive material from the microelectronic substrate while the electrolytic liquid is adjacent to the electrically conductive material.