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Conference Paper
Enhanced Performance of Laser-Assisted Bonding with Compression (LABC) Compared with Thermal Compression Bonding (TCB) Technology
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- Authors
- Kwang-Seong Choi, Yong-Sung Eom, Seok Hwan Moon, Jiho Joo, leeseul Jeong, Kwangjoo Lee, Jung Hak Kim, Ju hyeon Kim, Gil-Sang Yoon, Kwang-Hee Lee, Chul-Hee Lee, Geun-Sik Ahn, Moo-Sup Shim
- Issue Date
- 2019-05
- Citation
- Electronic Components and Technology Conference (ECTC) 2019, pp.197-203
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- A LABC (Laser-Assisted Bonding with Compression) bonder and NCF (Non-Conductive Film) were developed to increase the productivity of the bonding process for the advanced microelectronic packaging technology. The design features of a LABC make its UPH above 1,000. The NCF was applied to both of LAB and TCB (Thermal Compression Bonding Technology). The 780μm-thick daisy chain top and bottom chips with the minimum pitch of 30μm and bump number of about 27,000 were prepared and tested to verify the LABC and NCF technology. The effects of the laser power on the joints quality after the LABC bonding process were investigated and compared with the joints formed by the TCB technology. Finally, the SAT (Scanning Acoustic Tomography) images of the test vehicles before and after the TCO (Pressurized oven) were observed to check the voids in the NCF after the LABC bonding process.
- KSP Keywords
- Bonding process, Bonding technology, Design features, Enhanced performance, Laser power, Laser-Assisted Bonding, Non-conductive film, Packaging technology, Thermal Compression Bonding, acoustic tomography, daisy chain