Invention Grant
- Patent Title: Particle removal method using an aqueous polyphosphate solution
- Patent Title (中): 使用多磷酸盐水溶液的颗粒去除方法
-
Application No.: US13726521Application Date: 2012-12-24
-
Publication No.: US08764906B2Publication Date: 2014-07-01
- Inventor: Mark Jonathan Beck
- Applicant: Fontana Technology
- Applicant Address: US CA Campbell
- Assignee: Fontana Technology
- Current Assignee: Fontana Technology
- Current Assignee Address: US CA Campbell
- Agent Donald J. Pagel
- Main IPC: C23G1/00
- IPC: C23G1/00 ; C11D7/00 ; B08B3/00

Abstract:
A method and cleaning solution for cleaning electronic substrates, such as a semiconductor wafers, hard disks, photomasks or imprint molds. The method comprises the steps of contacting a surface of the substrate with a cleaning solution comprised of a polyphosphate, and then removing the cleaning solution from the surface. Additional optional steps include applying acoustic energy to the cleaning solution while the cleaning solution is in contact with the surface, and removing the cleaning solution from the surface by rinsing the surface with a rinsing solution with or without the application of acoustic energy. The cleaning solution comprises a polyphosphate, such as any of the water soluble polyphosphates. Depending on the application, the cleaning solution may also comprise a base and/or a quantity of suspended particles. Complexing agents, amines, biocides, surfactants and/or other substances, may also be added to the cleaning solution.
Public/Granted literature
- US20130112228A1 Particle Removal Method Using An Aqueous Polyphosphate Solution Public/Granted day:2013-05-09
Information query