Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Encapsulating
Patent
1998-08-10
2000-08-08
Picardat, Kevin M.
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Encapsulating
438106, 438126, H01L 2144, H01L 2148, H01L 2150
Patent
active
061001147
ABSTRACT:
Solder bumps on electronic components are encapsulated before attachment to a substrate or component carrier. A film of sealing material is pressed against top portions of the solder bumps by pressing with a layer of low durometer flexible material. Encapsulant is positioned between the component and the film and in contact with the bumps, and partially cured. The film and layer of flexible material are removed to expose the top portions of the encapsulated solder bumps.
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L. P. McGovern et al. "High-Throughput, Low-Cost Flip Chip-On-Board Assembly" Electronic Packaging & Production, Feb. 1998, pp. 68-76.
D. Gamota & C. Melton, "Materials to Integrate the Solder Reflow and . . . " IEEE Trans. on CPMT, Part C, vol. 21, No. 1, Jan. 1998, pp. 57-65.
"A High Speed Underfill Development for Flip Chips," SMT MAgazine, Feb. 1998, pp. 46 and 48.
Milkovich Cynthia S.
Pierson Mark V.
Tran Son K.
Collins D. M.
International Business Machines - Corporation
Picardat Kevin M.
Pivnichny John R.
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