3D Packaging

3D Profiler
Optical 3D Profiler image of a reflown electrical interconnect.
Silicon Wafer
Patterned silicon wafer with microfluidic channels.
Die Bonder
Laurier Die Bonder in the Texas Microfactory™ used to form 3D interconnects.

 

Overview:

Develop novel methods for the compact and reliable packaging of microdevices, thus enabling heterogeneous and multifunctional integration.

 

Approach:

  • Wafer and die-level stacking and interconnects of electronics, MEMS, optics, and fluidics.
  • Vertical interconnects between stacks including electrical, fluidic and optical connectivity.
  • Multifunctional integration of components enables modular architectures.

3D Packaging
Simultaneous BCB wafer bonding and 3D interconnect formation.

Accomplishments:

  • Wafer bonding using BCB for microfluidic packaging.
    Die stacking using fluxless soldering.
  • Simultaneous bonding and interconnects using BCB and SnAu microbumps.
  • Packaging of microdevices such as implantable drug delivery systems and S&A devices.

3D Packaging
Stacked dies/wafers result in a smaller “footprint” and better performance.

Publications

[1]

A. Fasoro, D.O. Popa, A. Patil, W. Lee, J. Sin, and H. Stephanou, “Fluxless Soldering for Hermetic Packaging of MOEMS,” in proc. of IMAPS International Conference, San Diego, October 2006.

[2]

D.O. Popa, R. Murthy, J. Sin, M. Mittal, H.E. Stephanou, “M3: Modular Microassembly System for MEMS Packaging,” in proc. of IMAPS International Conference, San Diego, October 2006.

[3]

P. Pandojirao-Sunkojirao, R. Dewan, D. O. Popa, J.C. Chiao, “Electrical Interconnects for 3D Wafer Stacks,” in proc of IMAPS International Conference, San Diego, October 2006.

[4]

A. Fasoro, A. Patil, D. O. Popa, H. Beardsley, D. Agonafer and H. Stephanou, “Fluxless soldering of MOEMS,” ITHERM Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, San Diego, May, 2006.

[5]

T.J. Hwang, D. O. Popa, Y. Oh, J. Sin, and H. Stephanou, “BCB as a Protective and Bonding Layer on Photosensitive Glass”, in Proceedings of the SPIE Conference on Micromachining and Microfabrication, January 2004.

[6]

D. O. Popa, T.J. Hwang, J.Q. Lu, B.H. Kang, and H. Stephanou, “BCB Wafer Bonding Compatible with Bulk Micro machining”, in Proc. of Int’l Electronic Packaging Technical Conference and Exhibition, INTERPACK ’03, Maui, Hawaii, July 2003.

[7]

P. Pandojirao-Sunkojirao, R. Dewant, D. O. Popa, J.C. Chiao, “BCB Wafer Bonding with Electrical Interconnects,” to appear in proc. Of SMTA IWLPC 3D Wafer-Scale Conference, San Diego, November 2006.

[8]

P. Pandojirao-Sunkojirao, P. Zhang, R. Dewan, D. O. Popa, H.E. Stephanou, J.C. Chiao, “Electrical Interconnects for 3D Wafer Stacks,” in proc of IMAPS International Conference and Exhibition on Device Packaging, Scottsdale, Arizona, March 2006.

[9]

A. Fasoro, D. O. Popa, A. Patil, W. Lee, J. Sin, and H. Stephanou, “Fluxless Soldering for Hermetic Packaging of MOEMS,” IMAPS International Conference and Exhibition on Device Packaging, Scottsdale, Arizona, March 2006.

[10]

D.O. Popa, M. Deeds, A. Fasoro, H. Beardsley, J. Sin, W. Lee and R. Fernandez, “Automated Assembly and Hermetic Packaging of MOEMS for Applications Requiring Extended Shelf-Lives,” IMECE2005, 2005 ASME International Mechanical Engineering Congress and Exposition, November 2005.

 

Related Topics :
Micropackaging :
3D Packaging
Reliability
Microfluidics

 

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