White Papers, Editorials, Videos & Technical Papers

Akrometrix Videos

AutomatedReportGenerator Video via YouTube

Part Tracking Introduction Video via YouTube

Part Tracking User Training Video via YouTube

AutomatedReportGenerator video file download

Akrometrix Technical Papers

High Temperature Component Warpage as a Function of Moisture Sensitivity (MSL) Rating

As originally published in SMTAI 2019 Proceedings

Neil Hubble

Thermal Shadow Moire to Cross-Section Correlation Study

As originally published in SMTAI 2018 Proceedings

Jorge Arellano, Edgardo Alvarez, Steven Perng, Neil Hubble

Effects of Package Warpage and Composite CTE on Failure Modes in Board-Level Thermal Cycling

As originally published in SMTAI 2018 Proceedings

Andrew Mawer, Paul Galles, Mollie Benson, Burt Carpenter, Neil Hubble

Effects of Temperature Uniformity on Package Warpage

As originally published in IPC APEX 2018 Proceedings

Neil Hubble, Charly Olson

Comparing Shadow Moire and Digital Fringe Projection Warpage Metrology Techniques

As originally published in SMTAI 2017 Proceedings

Neil Hubble, Leon Weaver

Variables Affecting Bare PCB Warpage During Reflow

As originally published in PCB West 2017 Proceedings

Neil Hubble, Avery Yeary

Measuring Die Tilt Using Shadow Moiré Optical Measurements – Phase 2 (*Die Tilt – Phase 2)

As originally published in EPTC 2016 Proceedings

Neil Hubble

Measuring Die Tilt Using Shadow Moiré Optical Measurements (*Die Tilt Phase 1)

As originally published in iMAPS International 2016 Proceedings

Neil Hubble

Understanding PCB Design Variables

As originally published in PCB West 2016 Proceedings

Donald Adams, Todd MacFadden, Rafael Maradiaga, Ryan Curry

Surface Mount Signed Warpage Case Study (*Signed Warpage Phase 2)

As originally published in IPC APEX 2017 Proceedings

Neil Hubble, Kim Hartnett, and Jerry Young

Improvements in Decision Making Criteria for Thermal Warpage (*Signed Warpage Phase 1)

As originally published in iMAPS Device Packaging 2016 Proceedings

Neil Hubble

Implementing Warpage Management – A Five-Step Process for EMS Providers

As originally published in US Tech, August 2014

Ken Chiavone

Ready to Start Measuring PCB Reflow Warpage

Ken Chiavone, John Davignon

Advanced Second Level Assembly Analysis Techniques – Troubleshooting Head-In-Pillow, Opens, and Shorts with Dual Full-Field 3D Surface Warpage Data Sets

As originally published in IPC APEX EXPO 2013 Proceedings
Ken Chiavone

PCB Dynamic Coplanarity at Elevated Temperatures

iNEMI SMT Coplanarity Workgroup
John Davignon, Ken Chiavone, Jiahui Pan, James Henzi, David Mendez, Ron Kulterman

Comparing Techniques for Temperature-Dependent Warpage Measurement

Jiahui Pan, Ryan Curry, Neil Hubble, Dirk Zwemer

Thinking Globally, Measuring Locally

Patrick Hassell

Advanced Warpage Characterization: Location and Type of Displacement can be Equally Important as Magnitude

Patrick Hassell

Measurement of Thermally Induced Warpage of BGA Packages/Substrates Using Phase-Stepping Shadow Moiré

Yinyan Wang, Patrick Hassell

Measuring board and component flatness

Patrick B. Hassell, Thomas E. Adams

Warpage Studies of HDI Test Vehicles

Gregory J. Petriccione, I. Charles Ume, Ph.D.

Akrometrix Documents and Best Practices

Akrometrix Applications – Package on Package (PoP)

Akrometrix Testing Applications

Socket Testing Protocol Summary

PCB Testing Protocol/Best Practices

Die and Package Testing Protocol/Best Practices

Introduction to High Volume Testing with Part Tracking™ in Akrometrix Studio 6.0

Why Upgrade to Akrometrix Studio?

Convective Reflow Emulation Module Testing Protocol

External Technical Papers

Industry Trends (US Tech Version)

FEA Simulation and In-situ Warpage Monitoring of Laminated Package Molded with Green EMC Using Shadow Moire System

Zhao Baozong, Vivek Pai, Chinnu Brahateeswaran, Hu Guojun, Spencer Chew, Neephing Chin

Elevated Temperature Measurements of Warpage of BGA Packages

David W. Garrett

Effect of PWB Warpage on BGAs Over Temperature

Kyra Ewer, Jeffrey Seekatz

Effect of Geometry and Temperature Cycle on the Reliability of WLCSP Solder Joints

Satish C. Chaparala, Brian D. Roggeman, James M. Pitarresi, Bahgat G. Sammakia, John Jackson, Garry Griffin, Tom McHugh

Measurement of Deformation and Strain in Flip Chip on BGA (FC-BGA)

L. Kehoe, V. Guenebaut, P.V. Kelly

CSP Board Level Reliability – Results

H.J. Albrecht, G. Petzold, B. Schwarz, H. Teichmann

Controlling Bow and Twist

Bob Willis

Generalizations about Component Flatness at Elevated Temperature

As originally published in Toronto International Conference on Soldering and Reliability 2013
Bev Christian, Linda Galvis, Rick Shelley and Matthew Anthon

Survey of Circuit Board Warpage During Reflow

Michael J. Varnau

Double Reflow-Induced Brittle Interfacial Failures in Pb-free Ball Grid Array Solder Joints

As originally published in IPC APEX EXPO 2013 Proceedings
Julie Silk, George Wenger, Richard Coyle, Jon Goodbread, Andrew Giamis

A Study on Package Stacking Process for Package-on-Package (PoP)

Akito Yoshida, Jun Taniguchi, Katsumasa Murata, Morihiro Kada, Yusuke Yamamoto, Yoshinori Takagi, Takeru Notomi, Asako Fujit

Paul Wang – PCB flatness pkg warpage 4panpacific 121103 Reviewed Final 4Presentation

Paper Topography – TAPPI

New Package/Board Materials Technology for Next-Generation Convergent Microsystems

Nitesh Kumbhat, P. Markondeya Raj, Shubhra Bansal, Ravi Doraiswami, S. Bhattacharya and Rao Tummala

The Lead-Free “Whac-A-Mole”

Ron Leckie, President, INFRASTRUCTURE Advisors

Traceability on the Line

Compiled by SMT

Shadow Moire Enters Production

Kathleen McCray

Correlation of Solder Joint Reliability of µPGA Socket To Package Flatness and PCB Warpage

Dr. Paul P.E. Wang, Shlomo Novotny, Keith Graveling, Damian Hujic, Dr. Dereje Agonafer and Wonkee Ahn

Quantitative Classification of Saw Marks of Silicon Wafers

A. Lawerenz, S. Dauwe, F.W. Schulze