Patent ID: 11926894
Assignee: ASM IP HOLDING B.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A solid source chemical vaporizer, comprising:
a housing base;
a first tray configured to be housed within the housing base, the first tray defining a first serpentine flow path adapted to hold solid source chemical and allow gas flow thereover, the first serpentine flow path comprising a plurality of straight portions and a plurality of path bends, the path bends defining portions of the first serpentine flow path where the first serpentine flow path curves back on itself;
a second tray configured to be housed within the housing base, the second tray defining a second serpentine flow path adapted to hold solid source chemical and allow gas flow thereover;
a protrusion within at least one straight portion of the plurality of straight portions of the first serpentine flow path, wherein the protrusion is configured to be disposed within solid source chemical within the first serpentine flow path and configured to produce a level of turbulence greater than the level during gas flow along the at least one straight portion without the protrusion; and
a housing lid comprising:
a first inlet valve mounted on the lid and in fluid communication with the first serpentine flow path;
a first outlet valve mounted on the lid and in fluid communication with the first serpentine flow path;
a second inlet valve mounted on the lid and in fluid communication with the second serpentine flow path; and
a second outlet valve mounted on the lid and in fluid communication with the second serpentine flow path.