Method of curing semiconductor wafers in an environmentally controlled process chamber

A method of curing or otherwise processing semiconductor wafers in an environmentally controlled process chamber includes: loading a plurality of semiconductor wafers into the process chamber such that pairs of adjacent semiconductor wafers are spaced apart from one another by gaps therebetween; introducing a process gas into the process chamber containing the plurality of semiconductor wafers; and drawing gas from the process chamber through one or more exhaust manifolds. Suitably, each exhaust manifold includes a plurality of inlet orifices through which gas is drawn into the exhaust manifold, at least one of the inlet orifices facing and aligning with each of the gaps.