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The adhesion of pad particles on wafer surfaces during Cu CMP
- Authors
- Song, Jae-Hoon; Han, Ja-Hyung; Hong, Yi-Koan; Kang, Young jae; Park, Jin-Goo; Maeng, Ju Ho; Won, Young Man
- Issue Date
- Nov-2005
- Citation
- Materials Research Society Symposium - Proceedings, v.867, pp.35 - 40
- Indexed
- SCOPUS
- Journal Title
- Materials Research Society Symposium - Proceedings
- Volume
- 867
- Start Page
- 35
- End Page
- 40
- ISSN
- 0272-9172
- Abstract
- The adhesion force of pad and alumina were experimentally and theoretically investigated in slurry solutions of different pHs. The isoelectric point (IEP) of pad particles was measured to be around pH 3. The wafer surfaces showed negative zeta potentials in the investigated pH ranges with exception of FSG and Ta. Cu and Ta showed higher interaction forces than dielectric materials. The lowest adhesion force was measured between pad particle and wafer surfaces in a slurry solution of pH 11. The magnitude of adhesion force of pad particles was lower than alumina particles. © 2005 Materials Research Society.
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Related Researcher
- Park, Jin Goo
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)