전기화학회지 (Journal of the Korean Electrochemical Society)
- 제4권4호
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- Pages.160-165
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- 2001
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- 1229-1935(pISSN)
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- 2288-9000(eISSN)
DOI QR Code
전기구리도금에 미치는 Mercapto화합물의 전기화학적 특성
The Electrochemical Characteristics of Mercapto Compounds on the Copper Electroplating
- 손상기 (연세대학교 화학공학과) ;
- 이유용 (국민대학교 금속공학과) ;
-
조병원
(한국과학기술연구원 나노환경연구센터) ;
-
이재봉
(국민대학교 금속공학과) ;
- 이태희 (연세대학교 화학공학과)
- Son Sang Ki (Department of Chemical Engineering, Yonsei University) ;
- Lee Yoo Yong (Department of Metallurgy & Materials Engineering, Kookmin University) ;
-
Cho Byung Won
(Nano Eco Research Center, KIST) ;
-
Lee Jae Bong
(Department of Metallurgy & Materials Engineering, Kookmin University) ;
- Lee Tae Hee (Department of Chemical Engineering, Yonsei University)
- 발행 : 2001.11.01
초록
황산원자를 포함하는 mercapto화합물은 도금시 전착속도를 증가시키는 첨가제로 알려져 있는데, 이 중 4가지의 mercapto 화합물을 선정하여 농도를 변화시켜가며 Hull cell test, Haring-Blum cell test, cathodic polarization, EQCM(Electrochemical Quartz Crystal Microbalance)등을 이용하여 도금특성 및 throwing power를 알아보았다. Cathode polarization 및 EQCM을 통한 구리 전착량을 알아본 결과 4가지의 mercapto 화합물 중 3-mercapto-1-propanesulfonic acid가 activator로서 가장 적당하였으며, 그 농도가 20 ppm에서 throwing power를 증가시키고, 농도 및 활성 과전압이 오직
The eletrochemical charateristics of mercapto compound additives on the copper electroplating for semi conductor metalization were investigated. Mercapto compounds including sulfur atom is known that they activate deposition rate in eletroplating. Four different types of mercapto compounds were chosen with different concentration and both the characteristics of plating and throwing power were investigated by electrochemical experiments such as Hull cell test, Haring-Blum cell, cathodic polarization, EQCM(Electrochemical Quartz Crystal Microbalance). 3-Mercapto-1-propanesulfonic acid among 4 different mercapto compounds was regarded as the most proper activator with the results of the mass change of Cu metal deposited on eletrode by cathodic polarization and EQCM. The overpotential was more shifted to 100 mV in the concentration of 20 ppm than the solution with only