Patent ID: 7767028

Claim:
A cleaning kit useful for cleaning composite showerhead electrode of a plasma reaction chamber wherein the composite showerhead electrode includes a silicon plate bonded to an aluminum backing plate, the kit comprising: an electrode carrier which supports the composite showerhead electrode with the silicon plate facing up; a treatment stand having a base and a plurality of support posts which engage the electrode carrier and support the electrode carrier; a first plate which attaches to a first side of the electrode carrier and one or more attachment members which engage the aluminum plate to support the composite showerhead electrode with the silicon plate exposed for cleaning thereof; a second plate which attaches to the first side of the electrode carrier such that the first plate is located in a space between the second plate and the composite showerhead electrode, the second plate including a seal which engages the first side of the electrode carrier and a gas inlet through which gas can be introduced under pressure to flow into gas holes in the aluminum plate and exit corresponding gas holes in the silicon plate, the second plate allowing gas to be flowed through the gas holes during acid cleaning of the exposed surface of the silicon plate; a third plate which attaches to the second side of the electrode carrier with the silicon plate facing up, the third plate including a seal which engages the electrode carrier and a water inlet through which water can be introduced under pressure to flow into gas holes in the silicon plate and exit corresponding gas holes in the aluminum plate, the third plate allowing low pressure water to be flushed through the gas holes for water rinsing the composite showerhead electrode after the cleaning the silicon surface; a drying stand having a base frame and a plurality of posts, the base frame supporting the electrode carrier and the composite showerhead electrode such that the electrode carrier can be removed from the composite showerhead electrode without manually touching the composite showerhead electrode; a fourth plate including a seal which engages the base frame and a gas inlet through which gas can be introduced under pressure to flow into gas holes in the silicon plate and exit corresponding gas holes in the aluminum plate, the fourth plate allowing gas to dry the composite showerhead electrode after a water rinsing step.