Patent ID: 8978673
Filing Date: 2015-03-17
Classification: B08B,H01L

Abstract:
1. An apparatus for cleaning semiconductor packages, comprising: a chamber having a base; a pickhead constructed and configured to hold the semiconductor packages on a surface of the pickhead in an array arrangement over the chamber so that molded surfaces of the packages face downward toward the base of the chamber; a plurality of nozzles located in the chamber, each of the nozzles being constructed and arranged to project a separate jet of cleaning fluid upwardly against the semiconductor packages, none of the separate jets overlapping with another separate jet, used cleaning fluid being collected at the base of the chamber; a megasonic energy generator configured to impart megasonic energy to the cleaning fluid; and a driving device configured to impart a relative two-dimensional movement between the plurality of nozzles and the pickhead so as to direct the separate jets onto every one of the array of packages on the pickhead; wherein the driving device comprising a first linear driving device coupled to the pickhead, the first linear driving device being configured to drive the pickhead along one linear axis, and the driving device comprising a second linear driving device, coupled to the plurality of nozzles,configured to drive the nozzles along another linear axis perpendicular to the one linear axis of the pickhead.