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Mehdi Asheghi
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Journal Articles

Point-Contact Bonding of Integrated Three-Dimensional Manifold Microchannel Cooling Within Direct Bonded Copper Platform

Yujui Lin, Tiwei Wei, Wyatt Jason Moy, Hao Chen, Man Prakash Gupta, Michael Degner, Mehdi Asheghi, H. Alan Mantooth, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
Publisher: ASME
J. Electron. Packag. June 2024, 146(2): 021003.
Paper No: EP-22-1092
https://doi.org/10.1115/1.4062924
Published Online: September 20, 2023
View Article titled, Point-Contact Bonding of Integrated Three-Dimensional Manifold Microchannel Cooling Within Direct Bonded Copper Platform
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Topics: Bonding, Copper, Microchannels, Polishing, Manifolds, Solders
Journal Articles

Multi-Level Embedded Three-Dimensional Manifold Microchannel Heat Sink of Aluminum Nitride Direct Bonded Copper for the High-Power Electronic Module

Yujui Lin, Tiwei Wei, Wyatt Jason Moy, Hao Chen, Man Prakash Gupta, Michael Degner, Mehdi Asheghi, H. Alan Mantooth, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. March 2024, 146(1): 011006.
Paper No: EP-22-1093
https://doi.org/10.1115/1.4062384
Published Online: June 7, 2023
View Article titled, Multi-Level Embedded Three-Dimensional Manifold Microchannel Heat Sink of Aluminum Nitride Direct Bonded Copper for the High-Power Electronic Module
Open the PDF for Multi-Level Embedded Three-Dimensional Manifold Microchannel Heat Sink of Aluminum Nitride Direct Bonded Copper for the High-Power Electronic Module in another window
Topics: Manifolds, Microchannels, Pressure drop, Flow (Dynamics), Thermal resistance, Cooling, Computational fluid dynamics
Journal Articles

Numerical Study of Large Footprint (24 × 24 mm 2 ) Silicon-Based Embedded Microchannel Three-Dimensional Manifold Coolers

Tiwei Wei, Sougata Hazra, Yujui Lin, Man Prakash Gupta, Michael Degner, Mehdi Asheghi, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
Publisher: ASME
J. Electron. Packag. June 2023, 145(2): 021008.
Paper No: EP-22-1046
https://doi.org/10.1115/1.4055468
Published Online: September 28, 2022
View Article titled, Numerical Study of Large Footprint (24 × 24 mm 2 ) Silicon-Based Embedded Microchannel Three-Dimensional Manifold Coolers
Open the PDF for Numerical Study of Large Footprint (24 × 24 mm 2 ) Silicon-Based Embedded Microchannel Three-Dimensional Manifold Coolers in another window
Topics: Flow (Dynamics), Manifolds, Microchannels, Silicon, Pressure, Temperature, Intake manifolds, Pressure drop
Proceedings Papers

Thermal Conductivity of Porous Silicon Layers for MEMS

Uma Srinivasan, Peter Breh, Mehdi Asheghi, Maxat Touzelbaev, Kenneth E. Goodson
Proc. ASME. IMECE99, Micro-Electro-Mechanical Systems (MEMS), 575-582, November 14–19, 1999
Paper No: IMECE1999-0323
https://doi.org/10.1115/IMECE1999-0323
View Paper titled, Thermal Conductivity of Porous Silicon Layers for MEMS
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Topics: Microelectromechanical systems, Silicon, Thermal conductivity, Porosity, Temperature, Crystals, Electrical resistance, Electromagnetic scattering, Electron microscopy, Heating
Proceedings Papers

Contact Angle Tuning of Copper Microporous Structures

Farid Soroush, Tanya Liu, Qianying Wu, Mehdi Asheghi, Kenneth E. Goodson, Lorenz Marco, Egger Christian, Rittner Martin
Proc. ASME. InterPACK2021, ASME 2021 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T07A010, October 26–28, 2021
Paper No: IPACK2021-73334
https://doi.org/10.1115/IPACK2021-73334
View Paper titled, Contact Angle Tuning of Copper Microporous Structures
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Topics: Copper
Proceedings Papers

A Hybrid Microporous Copper Structure for High Performance Capillary-Driven Liquid Film Boiling

Farid Soroush, Tanya Liu, Qianying Wu, Chi Zhang, Mehdi Asheghi, Kenneth E. Goodson, Lorenz Marco, Egger Christian, Rittner Martin
Proc. ASME. InterPACK2021, ASME 2021 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T05A001, October 26–28, 2021
Paper No: IPACK2021-73309
https://doi.org/10.1115/IPACK2021-73309
View Paper titled, A Hybrid Microporous Copper Structure for High Performance Capillary-Driven Liquid Film Boiling
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Topics: Boiling, Copper, Liquid films
Journal Articles

Performance and Manufacturing of Silicon-Based Vapor Chambers

Tanya Liu, Mehdi Asheghi, Kenneth E. Goodson
Journal: Applied Mechanics Reviews
Article Type: Review Articles
Appl. Mech. Rev. January 2021, 73(1): 010802.
Paper No: AMR-20-1085
https://doi.org/10.1115/1.4049801
Published Online: February 18, 2021
View Article titled, Performance and Manufacturing of Silicon-Based Vapor Chambers
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Topics: Manufacturing, Silicon, Vapors, Heat
Proceedings Papers

Characterization and Prevention of Metal Overflow in Ultra-Thin Au-Sn Eutectic Chip Bonding for Packaging and Integration of Extreme Heat Flux Micro-Coolers

Sougata Hazra, Yashvi Singh, Mehdi Asheghi, Kenneth Goodson
Proc. ASME. InterPACK2020, ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T03A003, October 27–29, 2020
Paper No: IPACK2020-2533
https://doi.org/10.1115/IPACK2020-2533
View Paper titled, Characterization and Prevention of Metal Overflow in Ultra-Thin Au-Sn Eutectic Chip Bonding for Packaging and Integration of Extreme Heat Flux Micro-Coolers
Open the PDF for Characterization and Prevention of Metal Overflow in Ultra-Thin Au-Sn Eutectic Chip Bonding for Packaging and Integration of Extreme Heat Flux Micro-Coolers in another window
Topics: Bonding, Flip-chip, Heat flux, Intermetallic compounds, Metals, Microcoolers, Packaging, Tin
Proceedings Papers

Lasered Roughness to Increase Wicking Rates in Pin-Fin Microstructure

Sougata Hazra, Tanya Liu, Mehdi Asheghi, Kenneth Goodson
Proc. ASME. InterPACK2020, ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T03A006, October 27–29, 2020
Paper No: IPACK2020-2640
https://doi.org/10.1115/IPACK2020-2640
View Paper titled, Lasered Roughness to Increase Wicking Rates in Pin-Fin Microstructure
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Topics: Lasers, Surface roughness, Vapors
Proceedings Papers

Design and Fabrication of Graded Copper Inverse Opals (g-CIOs) for Capillary-Fed Boiling in High Heat Flux Cooling Applications

Qianying Wu, Chi Zhang, Mehdi Asheghi, Kenneth Goodson
Proc. ASME. InterPACK2020, ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T07A011, October 27–29, 2020
Paper No: IPACK2020-2603
https://doi.org/10.1115/IPACK2020-2603
View Paper titled, Design and Fabrication of Graded Copper Inverse Opals (g-CIOs) for Capillary-Fed Boiling in High Heat Flux Cooling Applications
Open the PDF for Design and Fabrication of Graded Copper Inverse Opals (g-CIOs) for Capillary-Fed Boiling in High Heat Flux Cooling Applications in another window
Topics: Boiling, Cooling, Copper, Design, Heat flux, Manufacturing, Critical heat flux, Heat, Modeling, Permeability
Journal Articles

Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-3D Manifold Coolers (EMMCs): Part 1—Experimental Study of Single-Phase Cooling Performance With R-245fa

Ki Wook Jung, Eunho Cho, Hyoungsoon Lee, Chirag Kharangate, Feng Zhou, Mehdi Asheghi, Ercan M. Dede, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. September 2020, 142(3): 031117.
Paper No: EP-20-1030
https://doi.org/10.1115/1.4047846
Published Online: August 17, 2020
View Article titled, Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-3D Manifold Coolers (EMMCs): Part 1—Experimental Study of Single-Phase Cooling Performance With R-245fa
Open the PDF for Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-3D Manifold Coolers (EMMCs): Part 1—Experimental Study of Single-Phase Cooling Performance With R-245fa in another window
Topics: Flow (Dynamics), Fluids, Heat, Heat flux, Manifolds, Microchannels, Pressure drop, Temperature, Uncertainty, Cooling
Journal Articles

Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel Three-Dimensional-Manifold Coolers (EMMC)—Part 3: Addressing Challenges in Laser Micromachining-Based Manufacturing of Three-Dimensional-Manifolded Microcooler Devices

Sougata Hazra, Ki Wook Jung, Madhusudan Iyengar, Chris Malone, Mehdi Asheghi, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. September 2020, 142(3): 031119.
Paper No: EP-20-1022
https://doi.org/10.1115/1.4047847
Published Online: August 17, 2020
View Article titled, Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel Three-Dimensional-Manifold Coolers (EMMC)—Part 3: Addressing Challenges in Laser Micromachining-Based Manufacturing of Three-Dimensional-Manifolded Microcooler Devices
Open the PDF for Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel Three-Dimensional-Manifold Coolers (EMMC)—Part 3: Addressing Challenges in Laser Micromachining-Based Manufacturing of Three-Dimensional-Manifolded Microcooler Devices in another window
Topics: Coatings, Lasers, Manufacturing, Microcoolers, Micromachining, Silicon, Protective coatings, Bonding, Coating processes, Etching
Journal Articles

Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-Three-Dimensional Manifold Coolers—Part 2: Parametric Study of EMMCs for High Heat Flux (∼1 kW/cm 2 ) Power Electronics Cooling

Ki Wook Jung, Sougata Hazra, Heungdong Kwon, Alisha Piazza, Edward Jih, Mehdi Asheghi, Man Prakash Gupta, Michael Degner, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. September 2020, 142(3): 031118.
Paper No: EP-20-1032
https://doi.org/10.1115/1.4047883
Published Online: August 17, 2020
View Article titled, Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-Three-Dimensional Manifold Coolers—Part 2: Parametric Study of EMMCs for High Heat Flux (∼1 kW/cm 2 ) Power Electronics Cooling
Open the PDF for Thermal and Manufacturing Design Considerations for Silicon-Based Embedded Microchannel-Three-Dimensional Manifold Coolers—Part 2: Parametric Study of EMMCs for High Heat Flux (∼1 kW/cm 2 ) Power Electronics Cooling in another window
Topics: Computational fluid dynamics, Design, Fluids, Manifolds, Microchannels, Pressure drop, Simulation, Coolers
Proceedings Papers

Addressing the Challenges in Laser Micro-Machining and Bonding of Silicon Microchannel Cold-Plate and 3D-Manifold for Embedded Cooling Applications: Perfect Debris Removal

Sougata Hazra, Ki Wook Jung, Madhusudan Iyengar, Chris Malone, Mehdi Asheghi, Kenneth E. Goodson
Proc. ASME. InterPACK2019, ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T01A010, October 7–9, 2019
Paper No: IPACK2019-6539
https://doi.org/10.1115/IPACK2019-6539
View Paper titled, Addressing the Challenges in Laser Micro-Machining and Bonding of Silicon Microchannel Cold-Plate and 3D-Manifold for Embedded Cooling Applications: Perfect Debris Removal
Open the PDF for Addressing the Challenges in Laser Micro-Machining and Bonding of Silicon Microchannel Cold-Plate and 3D-Manifold for Embedded Cooling Applications: Perfect Debris Removal in another window
Topics: Bonding, Cooling, Lasers, Manifolds, Microchannels, Microfabrication, Micromachining, Silicon
Proceedings Papers

Parametric Study of Silicon-Based Embedded Microchannels With 3D Manifold Coolers (EMMC) for High Heat Flux (~1 kW/cm 2 ) Power Electronics Cooling

Ki Wook Jung, Sougata Hazra, Heungdong Kwon, Alisha Piazza, Edward Jih, Mehdi Asheghi, Man Prakash Gupta, Mike Degner, Kenneth E. Goodson
Proc. ASME. InterPACK2019, ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T06A021, October 7–9, 2019
Paper No: IPACK2019-6472
https://doi.org/10.1115/IPACK2019-6472
View Paper titled, Parametric Study of Silicon-Based Embedded Microchannels With 3D Manifold Coolers (EMMC) for High Heat Flux (~1 kW/cm 2 ) Power Electronics Cooling
Open the PDF for Parametric Study of Silicon-Based Embedded Microchannels With 3D Manifold Coolers (EMMC) for High Heat Flux (~1 kW/cm 2 ) Power Electronics Cooling in another window
Topics: Computational fluid dynamics, Computer cooling, Coolers, Heat flux, Manifolds, Microchannels, Silicon, Water
Proceedings Papers

Experimental Investigation of Single-Phase Cooling in Embedded Microchannels: 3D Manifold Heat Exchanger With R-245fa

Ki Wook Jung, Hyoungsoon Lee, Chirag Kharangate, Feng Zhou, Mehdi Asheghi, Ercan M. Dede, Kenneth E. Goodson
Proc. ASME. InterPACK2019, ASME 2019 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T06A007, October 7–9, 2019
Paper No: IPACK2019-6400
https://doi.org/10.1115/IPACK2019-6400
View Paper titled, Experimental Investigation of Single-Phase Cooling in Embedded Microchannels: 3D Manifold Heat Exchanger With R-245fa
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Topics: Cooling, Heat exchangers, Manifolds, Microchannels
Journal Articles

Enhanced Heat Transfer Using Microporous Copper Inverse Opals

Hyoungsoon Lee, Tanmoy Maitra, James Palko, Daeyoung Kong, Chi Zhang, Michael T. Barako, Yoonjin Won, Mehdi Asheghi, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. June 2018, 140(2): 020906.
Paper No: EP-18-1003
https://doi.org/10.1115/1.4040088
Published Online: May 9, 2018
View Article titled, Enhanced Heat Transfer Using Microporous Copper Inverse Opals
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Topics: Copper, Critical heat flux, Heat transfer, Pool boiling, Boiling, Heat transfer coefficients, Bubbles
Journal Articles

Experimental Investigation of Embedded Micropin-Fins for Single-Phase Heat Transfer and Pressure Drop

Chirag R. Kharangate, Ki Wook Jung, Sangwoo Jung, Daeyoung Kong, Joseph Schaadt, Madhusudan Iyengar, Chris Malone, Hyoungsoon Lee, Mehdi Asheghi, Kenneth E. Goodson
Journal: Journal of Electronic Packaging
Article Type: Research-Article
J. Electron. Packag. June 2018, 140(2): 021001.
Paper No: EP-17-1126
https://doi.org/10.1115/1.4039475
Published Online: May 9, 2018
View Article titled, Experimental Investigation of Embedded Micropin-Fins for Single-Phase Heat Transfer and Pressure Drop
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Topics: Fins, Flow (Dynamics), Fluids, Friction, Heat transfer, Pressure drop, Reynolds number, Water, Heat, Temperature
Proceedings Papers

Investigation of the Heterogeneous Thermal Conductivity in Bulk CVD Diamond for Use in Electronics Thermal Management

Luke Yates, Ramez Cheaito, Aditya Sood, Zhe Cheng, Thomas Bougher, Mehdi Asheghi, Kenneth Goodson, Mark Goorsky, Firooz Faili, Dan Twitchen, Samuel Graham
Proc. ASME. InterPACK2017, ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T04A014, August 29–September 1, 2017
Paper No: IPACK2017-74163
https://doi.org/10.1115/IPACK2017-74163
View Paper titled, Investigation of the Heterogeneous Thermal Conductivity in Bulk CVD Diamond for Use in Electronics Thermal Management
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Topics: Electronics, Synthetic diamonds, Thermal conductivity, Thermal management, Diamonds, Chemical vapor deposition, Electron backscatter diffraction, Lasers, Boron, Heat flux
Proceedings Papers

Copper Inverse Opal Surfaces for Enhanced Boiling Heat Transfer

Hyoungsoon Lee, Tanmoy Maitra, James Palko, Chi Zhang, Michael Barako, Yoonjin Won, Mehdi Asheghi, Kenneth E. Goodson
Proc. ASME. InterPACK2017, ASME 2017 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems, V001T01A006, August 29–September 1, 2017
Paper No: IPACK2017-74090
https://doi.org/10.1115/IPACK2017-74090
View Paper titled, Copper Inverse Opal Surfaces for Enhanced Boiling Heat Transfer
Open the PDF for Copper Inverse Opal Surfaces for Enhanced Boiling Heat Transfer in another window
Topics: Boiling, Copper, Heat transfer, Bubbles, Critical heat flux, Cooling, Heat transfer coefficients, Microscale devices, Nucleation (Physics), Optical images