Convection transfer system
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United States of America Patent
Stats
-
May 10, 1994
Issued Date -
N/A
app pub date -
Apr 2, 1992
filing date -
Apr 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system provides for convective transferring of material between a workpiece and a flowing fluid which chemically reacts with the workpiece. A gap is formed between the workpiece and a facesheet. The fluid is fed to supply nozzles, travels a short distance within the gap adjacent to the facesheet and exits via return nozzles. The flow cross section and flow density facilitate convective transfer at a moderate flow rate and low fluid pressure. The system is also applicable for chemical transfer such as plating or etching printed circuit boards.
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