Patent ID: 7998304

Claim:
A method of configuring a proximity head to transfer fluid through a plurality of fluid transfer flow paths in the head and onto a surface of a semiconductor wafer, the method comprising: (a) providing a first block with a first mating surface; (b) providing a second block with a second mating surface; (c) performing a first series of operations in the first block, the first series of operations including: (i) forming a main fluid flow path; (ii) forming a plurality of connector fluid flow paths connected to the main fluid flow path; (iii) forming a high resistance fluid flow path in the first block, the high resistance fluid flow path having a cross-shaped cross-section including a plenum and a resistance bore open to the plenum; (d) performing a second series of operations in the second block, the second series of operations including: (i) forming a portion of the plenum through the second mating surface into the second block; and (ii) configuring a plurality of fluid transfer bores in the second block and intersecting the portion of the plenum; (e) fusing the first and second mating surfaces to render the first and second blocks unitary with the plenum open to and between both the plurality of fluid transfer bores and the cross-shaped cross-section of the high resistance fluid flow path, the fusing defining the proximity head used to transfer fluids to the surface of the semiconductor wafer.