Patent ID: 6650409
Filing Date: 2003-11-18
Classification: G01N,H01J,H01L

Abstract:
A semiconductor device producing method comprising:measuring a condition of adhesion of dust particles adhering to a semiconductor work by a dust particle detecting apparatus positioned at least one of before and after the semiconductor work is processed by a processing apparatus disposed in a processing chamber; managing a changing condition of incremental adhesion of dust particles to the semiconductor work being processed by the processing apparatus for each lot of works or for each work and predicting that the adhesion amount of dust particles will exceed a predetermined control limit of adhesion amount; controlling a time or a cycle when the processing apparatus is cleaned on the basis of the managed changing condition of adhesion of dust particles for each lot of works or for each work and the predicted exceeding of the predetermined control limit; and processing the semiconductor works by the controlled processing apparatus to produce semiconductor devices; wherein the semiconductor work is transferred by a transfer mechanism between the processing chamber in which the processing apparatus is disposed and the dust particle detecting apparatus.