Patent ID: 8636847

Claim:
A chemical vapor deposition reactor comprising: (a) a reaction chamber having upstream and downstream directions; (b) a carrier support adapted to support a wafer carrier at a carrier location within the reaction chamber for rotation about an axis extending in the upstream and downstream directions; (c) a flow inlet element mounted to the chamber upstream of the carrier location, the inlet element having a gas distribution surface extending in X and Y horizontal directions perpendicular to one another and perpendicular to the downstream direction, the flow inlet element having an array of elongated gas inlets adapted to discharge gases downstream into the chamber, the elongated gas inlets extending parallel to one another and across the gas distribution surface in the X horizontal direction and extending across a Y-direction medial plane of the reactor, the elongated gas inlets including a plurality of first gas inlets for discharging a first reactive gas and a plurality of second gas inlets for discharging a second reactive gas, the first gas inlets being spaced apart from one another in the Y horizontal direction, the second gas inlets being spaced apart from one another in the Y horizontal direction and interspersed with the first gas inlets, wherein the axis of rotation of the wafer carrier passes through the array of elongated gas inlets so that the first and second reactive gasses, once discharged from the first and second gas inlets to a point proximate the wafer carrier, are impelled into rotational flow and mixed with one another to deposit a substance on a wafer held by the carrier.