Patent ID: 8317966
Filing Date: 2012-11-27
Classification: H01L,Y10S,Y10T

Abstract:
1. A method for making a proximity head for use in delivering fluids to a surface of a semiconductor wafer, comprising: forming a first block from a plastic material, the first block extending a length that is at least as large as a diameter of the semiconductor wafer; forming a main bore in the first block, the main bore being aligned with the length; forming a plurality of upper intermediate bores in the first block, the plurality of upper intermediate bores being substantially perpendicular to the main bore and having a first ends connected to the main bore; forming a resistor bore in the first block, the resistor bore being along the length and parallel to the main bore, the resistor bore being coupled to the plurality of upper intermediate bores at second ends, the resistor bore configured to receive a resistor for impeding and condition a flow of fluid introduced into the main bore; forming a plurality of lower intermediate bores in the first block, the plurality of lower intermediate bores having first ends connected to the resistor bore; forming a fusing surface on the first block, the fusing surface exposing second ends of the plurality of lower intermediate bores; forming a second block with a fusing surface, the second block having delivery bores that communicate with the second ends of the plurality of lower intermediate bores of the first block; and fusing the first and second fusing surfaces of the first block and second block, the second block having a proximity surface that is opposite the fusing surface, such that the proximity surface is configured to be placed in proximity to a surface of the semiconductor wafer for substantially even flow of fluid across the length.