Explicit submodeling and digital image correlation based life-prediction of leadfree electronics under shock-impact

P Lall, S Shantaram, A Angral… - 2009 59th Electronic …, 2009 - ieeexplore.ieee.org
Relative damage-index based on the leadfree interconnect transient strain history from
digital image correlation, explicit finite-elements, cohesive-zone elements, and component's …

Peridynamic-models using finite elements for shock and vibration reliability of leadfree electronics

P Lall, S Shantaram… - 2010 12th IEEE …, 2010 - ieeexplore.ieee.org
Electronic packages subjected to drop and shock have been simulated using alternative
theory known as peridynamic theory in the realm of FEM. In peridynamics, problems are …

Mechanical deformation behavior of SAC305 at high strain rates

P Lall, S Shantaram, J Suhling… - … Conference on Thermal …, 2012 - ieeexplore.ieee.org
Electronic products are subjected to high G-levels during mechanical shock and vibration.
Failure-modes include solder-joint failures, pad cratering, chip-cracking, copper trace …

Modeling and reliability characterization of area-array electronics subjected to high-g mechanical shock up to 50,000 g

P Lall, K Patel, R Lowe, M Strickland… - 2012 IEEE 62nd …, 2012 - ieeexplore.ieee.org
Electronics in aerospace applications may be subjected to very high g-loads during normal
operation. A novel micro-coil array interconnect has been studied for increased reliability …

Stress–strain behavior of SAC305 at high strain rates

P Lall, S Shantaram, J Suhling… - Journal of …, 2015 - asmedigitalcollection.asme.org
Electronic products are subjected to high G-levels during mechanical shock and vibration.
Failure-modes include solder-joint failures, pad cratering, chip-cracking, copper trace …

Constitutive Behavior of SAC Leadfree Alloys at High Strain Rates

P Lall, S Shantaram, M Kulkarni… - International …, 2011 - asmedigitalcollection.asme.org
Electronic products are subjected to high G-levels during mechanical shock and vibration.
Failure-modes include solder-joint failures, pad cratering, chip-cracking, copper trace …

Model for inverse determination of process and material parameters for control of Package-on-Package warpage

P Lall, K Patel, V Narayan - IEEE Transactions on Components …, 2015 - ieeexplore.ieee.org
Package-on-package (PoP) assemblies may experience warpage during package
fabrication and later during surface mount assembly. Excessive warpage may result in loss …

Model for prediction of package-on-package warpage and the effect of process and material parameters

P Lall, K Patel, V Narayan - 2013 IEEE 63rd Electronic …, 2013 - ieeexplore.ieee.org
Package-on-Package (PoP) assemblies may experience warpage during package
fabrication and later during surface mount assembly. Excessive warpage may result in loss …

High strain-rate mechanical properties of SnAgCu leadfree alloys

P Lall, S Shantaram, M Kulkarni… - 2011 IEEE 61st …, 2011 - ieeexplore.ieee.org
Electronic products are subjected to high G-levels during mechanical shock and vibration.
Failure-modes include solder-joint failures, pad cratering, chip-cracking, copper trace …

High-G shock reliability of ceramic area-array packages

P Lall, K Patel, R Lowe, M Strickland… - … on Thermal and …, 2012 - ieeexplore.ieee.org
Electronics in aerospace applications may be subjected to very high g-levels during normal
operation. A column array interconnect has been studied for reliability during extended …