US 12,214,377 B2
Conformal coating process with thickness control
Jason Schoen, Clifton Park, NY (US); Jonathan Neal Urquhart, Saratoga Springs, NY (US); and Frank Hart, Rexford, NY (US)
Assigned to PRECISION VALVE & AUTOMATION, INC., Halfmoon, NY (US)
Filed by Precision Valve & Automation, Inc., Halfmoon, NY (US)
Filed on Oct. 8, 2021, as Appl. No. 17/497,318.
Claims priority of provisional application 63/120,428, filed on Dec. 2, 2020.
Prior Publication US 2022/0168776 A1, Jun. 2, 2022
Int. Cl. B05D 1/02 (2006.01); B05B 12/08 (2006.01); B05D 1/00 (2006.01)
CPC B05D 1/02 (2013.01) [B05B 12/084 (2013.01); B05D 1/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for controlling a dispensing system comprising:
first dispensing, by a dispensing device, a coating material onto a first substrate of a sequence of substrates according to a first dispensing operation;
first inspecting, by an inspection device physically attached to the dispensing device, the coating material applied to the first substrate, wherein movement of the dispensing device results in movement of the inspection device, wherein the first inspecting includes measuring a thickness of the coating material and comparing the thickness to a preset tolerance surrounding a desired thickness of coating material;
altering the first dispensing operation based on determining that the thickness exceeds the preset tolerance so that the coating material is dispensed onto a second substrate according to a second dispensing operation, wherein the second substrate immediately follows the first substrate in the sequence;
ejecting the first substrate from the dispensing system;
second dispensing the coating material on the second substrate according to the second dispensing operation;
second inspecting, by the inspection device, the coating material applied to the second substrate, wherein the second inspecting includes measuring a thickness of the coating material applied to the second substrate and comparing the thickness to the preset tolerance; and
altering the second dispensing operation if the thickness of the coating material applied to the second substrate exceeds the preset tolerance so that the coating material is dispensed onto a third substrate according to a third dispensing operation, wherein the third substrate immediately follows the second substrate in the sequence, or dispensing the coating material on the third substrate according to the second dispensing operation;
wherein the first dispensing operation, the second dispensing operation, and the third dispensing operations are different from each other.