Patent ID: 7510970
Filing Date: 2009-03-31
Classification: G09G,H01L,Y10S

Abstract:
1. A process for manufacturing a semiconductor integrated circuit device, comprising the steps of: (a) forming a metal layer including copper as its principal component over an insulating film over a first major surface of a wafer by electroplating, the insulating film having a wiring groove pattern; (b) removing the metal layer outside the wiring groove pattern by a chemical mechanical polishing method so as to leave the metal layer in the wiring groove pattern, said removing being performed in a chemical mechanical polishing section of a single wafer processing apparatus; (c) after step (b), transferring the wafer to a post cleaning section of the single wafer processing apparatus, while keeping a surface of the metal layer left in the wiring groove pattern of the first major surface of the wafer wet with moving water, wherein the moving water is a water shower; (d) performing scrub or brush cleaning to the first major surface of the wafer with a liquid chemical or pure water in the post cleaning section; and (e) after step (d), making the first major surface of the wafer dry, wherein the single wafer processing apparatus has a light shielding structure keeping an illuminance of the post cleaning section and a portion between the chemical mechanical polishing section and the post cleaning section 100 lux or less, and wherein the light shielding structure includes a light shielding sheet.