Patent ID: 11920241
Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC C

Claim 9:
10. A method for improving homogeneity of fluid flows for gas phase deposition on substrates, wherein the method includes introducing a fluid using a fluid handling structure (structure) defining a flow path with an inlet and an outlet for transmitting pressurized fluid from said inlet to the outlet onto a substrate,
wherein the structure includes:
an elongated slit, and
a series of nozzles through which pressurized fluid is allowed to enter the elongated slit,

wherein the inlet is provided upstream the series of nozzles,
wherein the outlet is formed downstream at a gap opening of the elongated slit allowing pressurized fluid to discharge from the elongated slit,
wherein the series of nozzles provide a larger flow resistance than the elongated slit,
wherein the series of nozzles form a series of jet flows directed towards one or more impingement surfaces of the structure as pressurized fluid is transmitted through the flow path,
wherein the elongate slit is defined between a first wall and a second wall spaced across a gap from the first wall, and
wherein the second wall includes a series of cavities arranged for receiving the formed jets as pressurized fluid is transmitted through the flow path, and wherein the impingement surfaces are formed by the series of cavities.