Patent ID: 9136138
Filing Date: 2015-09-15
Classification: G05B,H01J,H01L

Abstract:
1. A method for seasoning semiconductor device manufacturing equipment, comprising: obtaining, by a control unit, at least one reference measurement value according to a reference process recipe of a plasma etching process before cleaning a chamber; selecting variables which affect the plasma etching process of the reference process recipe; cleaning the chamber to at least partially remove a polymer component thereon; obtaining, by a control unit, test measurement values by performing seasoning tests on the cleaned chamber, the seasoning tests being different from the plasma etching process, the test measurement values being associated with tests in which the selected variables are manipulated; estimating, by a control unit, at least one estimated calculation value approximate to the at least one reference measurement value; estimating, by a control unit, a seasoning process recipe from the at least one estimated calculation value; and seasoning the chamber according to the estimated seasoning process recipe, wherein the at least one reference measurement value comprises optical measurement values, and the selecting variables selects the variables based on a spectrum intensity difference of the plasma reaction between the reference process recipe and the seasoning process recipe.