Patent ID: 6061608
Filing Date: 2000-05-09
Classification: G01G,H01L

Abstract:
Apparatus for precisely dispensing a controlled amount of a liquid onto an article, said apparatus comprising:an automatic liquid dispenser comprising a programmable controller, a dispensing pump coupled to a dispensing needle that dispenses the liquid, and a work table;a force transducer disposed on the work table that outputs an output signal indicative of the weight of items disposed thereon;a tooling plate disposed on the force transducer;an article onto which the liquid is to be dispensed disposed on the tooling plate;a computer program disposed on the computer controller that is programmed with a predetermined weight limit that is indicative of the desired weight of the liquid that is to be dispensed onto the article, and which processes the output signal while the liquid is dispensed onto the article, and which controls the pump to terminate dispensing of the liquid onto the article when the predetermined weight limit is reached.