ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,586, issued on March 31, was assigned to ASMPT SMT SINGAPORE PTE. LTD. (Singapore).
"Post-print vacuum degassing" was invented by William Thomas Luke Walker (Sudbury, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A degassing chamber for degassing a material located on a workpiece, comprises a vacuum source and a vacuum reservoir in fluid communication with the vacuum source, a secondary chamber, a port valve which is movable between an open position to allow passage of a workpiece therethrough between the exterior of the degassing chamber and the secondary chamber and a closed position in which the port valve is fluidly sealed, and a...