Patent ID: 6652659
Filing Date: 2003-11-25
Classification: C11D,H01L,H05K,Y10S

Abstract:
A method of rinsing an electronic substrate, consisting essentially of:preparing a low species buffered rinsing fluid by (a) providing water from a water source; (b) deionizing the water to produce deionized water; (c) adding a buffer to the deionized water at a concentration effective to dissolve or displace a residue on the electronic substrate, and at a concentration effective to eliminate deposition of residues on the electronic substrate, wherein the low species buffered rinsing solution consists essentially of a buffer and deionized water at a concentration effective to dissolve or displace a residue on the electronic substrate, and at a concentration effective to eliminate deposition of residues on the electronic substrate wherein the buffer consists essentially of sodium bicarbonate and/or potassium bicarbonate and wherein the concentration of the buffer in the rinsing solution is between 10 ppm and 450 ppm; and rinsing the electronic substrate with the low species buffered rinsing fluid.