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Cheol-Ho Heo 1 Article
233 Microstructural Analysis of Solder Bump Fabricated by Sn Electroplating on a PCB Substrate
Sn 도금을 통한 PCB 기판상의 솔더 범프 제작 및 미세조직 분석
Sang-Hyeok Kim, Seong-Jin Kim, Han-Kyun Shin, Hyun Park, Cheol-Ho Heo, Seongjae Moon, Hyo-Jong Lee
김상혁, 김성진, 신한균, 박현, 허철호, 문성재, 이효종
Korean J. Met. Mater. 2021;59(4):233-238.   Published online 2021 Mar 24
DOI: https://doi.org/10.3365/KJMM.2021.59.4.233

Abstract
To manufacture finer solder bumps, the SR and DFR patterns were filled using a Sn electroplating process instead of the microball process currently used in BGA technology, and the solder bump shape was fabricated through a reflow process. The microstructure of the solder bump was investigated by EBSD and TEM..... More

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