Patent ID: 8303713

Claim:
A flow inlet element for a chemical vapor deposition reactor comprising a structure having a downstream side and defining a downstream direction away from the downstream side, the structure defining a plurality of elongated base gas inlets open in the downstream direction and extending parallel to one another in an X horizontal direction perpendicular to the downstream direction, the base gas inlets being spaced apart from one another in a Y horizontal direction perpendicular to the X horizontal direction, the structure further including a plurality of elongated diffusers projecting downstream from the base gas outlets extending parallel to one another in the X horizontal direction between the base gas inlets, the diffusers tapering so that the dimension of each diffuser in the Y horizontal direction diminishes in the downstream direction to an edge downstream from the base gas outlets, at least some of the diffusers having additional gas inlets with openings at the edges of the diffusers.