Patent ID: 6598314
Filing Date: 2003-07-29
Classification: H01L

Abstract:
A wafer drying apparatus, comprising:a first entry port; a second entry port; entry of IPA possibly mixed with DIW into the wafer drying apparatus through said first entry port, forming a mist spraying device; entry of an inert gas into the wafer drying apparatus through said second entry port; a top cover for positioning of wafers into said wafer drying apparatus; a drain vent; an exhaust vent; a wafer arrestor positioned inside said wafer drying apparatus for proper positioning of at least one wafer inside the wafer drying apparatus; at least one ultrasonic nebulizer positioned inside said wafer drying apparatus; supply of isopropyl alcohol (IPA), possibly mixed with DI water, to said at least one ultrasonic nebulizers via said first entry port to said wafer drying apparatus; and creation of ultrasonic energy inside said wafer-drying apparatus by using a microwave energy supply unit.