Patent ID: 8844461
Filing Date: 2014-09-30
Classification: C23C,Y10T

Abstract:
1. A system for semiconductor wafer electroless plating, comprising: a chamber including a first wafer processing zone defined within an upper region of an internal volume of the chamber, the first wafer processing zone including upper and lower proximity heads defined to perform a drying a process on a wafer, the chamber including a second wafer processing zone within a lower region of the internal volume of the chamber, the second wafer processing zone including a fluid bowl defined to perform an electroless plating process on the wafer; a platen defined to support the wafer within the chamber and provide transport of the wafer in a vertical direction between the first and second wafer processing zones; a seal disposed around an interior surface of the fluid bowl so as to form a liquid tight barrier when the platen is lowered to engage the seal, wherein a space above the seal is open to a volume overlying the platen when the platen is lowered to engage the seal; a number of fluid dispense nozzles positioned around the interior surface of the fluid bowl above the seal; a first supply line connected to supply an electroless plating solution to the number of fluid dispense nozzles; a mixing manifold including a fluid output connected to the first supply line, the mixing manifold including a number of fluid inputs for respectively receiving a number of chemicals, the mixing manifold defined to mix the number of chemicals to form the electroless plating solution; and a chemical fluid handling system defined to supply the number of chemicals to the number of fluid inputs of the mixing manifold in a controlled manner.