Patent ID: 6416587
Filing Date: 2002-07-09
Classification: B08B,Y10S

Abstract:
A method for cleaning wafers in a wafer cleaning apparatus, the wafer cleaning apparatus comprising a container having an open top side and first, second third and fourth water jet generating means arranged in the container for generating water jets, the method comprising the following steps:(a) moving wafers to be cleaned into the rising container to a position between the water jet generating means; (b) generating water jets in opposite directions toward the wafers by the first and fourth water jet generating means for a predetermined first time period; (c) generating water jets in opposite directions toward the wafers by the second and third water jet generating means for a predetermined second time period; and (d) generating water jets by the third and fourth water jets generating means to cause a water flow in a direction from a bottom of the container toward the open top side of the container; and further comprising a step of continuously generating a water flow from a bottom of the rinsing container toward the open top side when the wafers are moved into the rising container.