Patent ID: 7163587

Claim:
A reactor assembly comprising: a base unit; a chuck assembly disposed in a cavity of the base unit, wherein the chuck assembly comprises a support having a surface capable of receiving a substrate; a process chamber comprising a top wall, a bottom wall, and sidewalls extending therefrom substantially perpendicular to the support surface of said chuck assembly, and a cylindrical opening extending through the bottom wall to the top wall defining a substantially cylindrically shaped interior region having a central axis extending substantially perpendicular to the support surface of said chuck assembly, wherein the process chamber is coupled to the base unit; an inlet manifold assembly in fluid communication with a first sidewall opening of the process chamber in a selected one of the sidewalls, wherein the inlet manifold assembly comprises a triangularly shaped flow-shaping portion adapted to laterally elongate a gas and/or a reactant flow into the process chamber, wherein the fluid communication between the inlet manifold assembly and the first sidewall opening of the process chamber is free from a baffle plate; and an exhaust manifold assembly in fluid communication with a second sidewall opening of the process chamber in the sidewall diametrically opposed from the selected one of the sidewalls, wherein the first and second sidewall openings define an entire flow path of the gas and/or the reactant flow into and out of the process chamber.