Flip-chip process using heat transfer from an induction-heating film
- Authors
- Oh, Tae-Sung; Lee, Kwang-Yong; Lee, Yoon-Hee; Jung, Boo-Yang
- Issue Date
- Jun-2009
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- flip chip; induction heating; film; solder bump; solder reflow
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.15, no.3, pp.479 - 485
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 15
- Number
- 3
- Start Page
- 479
- End Page
- 485
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/21842
- DOI
- 10.1007/s12540-009-0479-8
- ISSN
- 1598-9623
- Abstract
- A new flip-chip technology to attach an IC chip directly to a substrate was studied using the heat transfer from an induction-heating film in an AC magnetic field. When applying a magnetic field of 230 Oe at 14 kHz, the temperature of a 600 mu m-thick 5 mm x 5 mm Cu induction-heating film reached 250 A degrees C within 60 s. The temperature of the glass substrate used in this process was kept below 118 A degrees C at a distance of 1,350 mu m from the Cu induction-heating film, which was maintained at 250 A degrees C, implying that damage to a substrate can be minimized with the flip-chip process using heat transfer from an induction-heating film. Flip-chip bonding was successfully accomplished with the reflow of Sn-3.5Ag solder bumps by applying a magnetic field of 230 Oe at 14 kHz for 120 s to a Cu induction-heating film.
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Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
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