Invention Grant
- Patent Title: Methods for application of two-phase contaminant removal medium
- Patent Title (中): 两相污染物去除介质的应用方法
-
Application No.: US13351217Application Date: 2012-01-16
-
Publication No.: US08480809B2Publication Date: 2013-07-09
- Inventor: Ji Zhu , Arjun Mendiratta , David Mui
- Applicant: Ji Zhu , Arjun Mendiratta , David Mui
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Martine Penilla Group, LLP
- Main IPC: B08B3/00
- IPC: B08B3/00 ; C11D11/00

Abstract:
A method is provided for receiving the wafer on a support, the support being configured for movement along a direction. While moving the wafer, dispensing a cleaning material to clean contaminants from the surface of the wafer, the dispensing applied as a film over a diameter length of the wafer. The cleaning material contains a cleaning liquid, a plurality of solid components, and polymers of a polymeric compound. Each of the plurality of solid components and polymers being greater than zero and less than 3% of the cleaning material, and wherein the polymers become soluble in the cleaning liquid and the solubilized polymers having long polymer chains that capture and entrap solid components and contaminants in the cleaning liquid. Then, rinsing the film off of the wafer with a rinsing meniscus. The rinsing meniscus applied along the diameter length of the wafer and the film is rinsed after the dispensing.
Public/Granted literature
- US20120132229A1 Methods for Application of Two-Phase Contaminant Removal Medium Public/Granted day:2012-05-31
Information query