A 2.5-D Integrated Data Logger for Measuring Extreme Accelerations

A very compact and rugged 2.5-D integrated data logger has been built and tested. The data logger is capable of measuring accelerations exceeding 70 000 g. Microcontroller and flash memory as bare dies have been mounted onto a silicon interposer with through silicon vias using anisotropic conductive...

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Bibliographic Details
Published in:IEEE transactions on components, packaging, and manufacturing technology (2011) packaging, and manufacturing technology (2011), 2017-12, Vol.7 (12), p.1930-1939
Main Authors: Gakkestad, Jakob, Sollund, Tomas, Dalsjo, Per, Tveit, Bjorn, Taklo, Maaike M. Visser, Wright, Daniel Nilsen, Helland, Susanne, Kristiansen, Helge, Johnsen, Christian
Format: Article
Language:English
Subjects:
2.5-D integration
Acceleration
Accelerometers
anisotropic conductive film (ACF)
Anisotropic conductive films
Chip carriers
Circuit boards
Conductive adhesives
Conductivity
data logger
Doppler radar
Flash memory (computers)
flip chip
Flip-chip devices
harsh environment
Integrated circuits
Interconnections
isotropic conductive adhesive (ICA)
Metallizing
Microcontrollers
Microelectromechanical systems
plastic core solder balls (PCSBs)
Power management
Printed circuits
Projectiles
Silicon
silicon interposer
through silicon via (TSV)
Through-silicon vias
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Summary:A very compact and rugged 2.5-D integrated data logger has been built and tested. The data logger is capable of measuring accelerations exceeding 70 000 g. Microcontroller and flash memory as bare dies have been mounted onto a silicon interposer with through silicon vias using anisotropic conductive film and Au stud bump bonding. A microelectromechanical system accelerometer is mounted onto the interposer, using a robust customized flip-chip mounting approach. The interposer is mounted into a 16-pin leadless chip carrier package using isotropic conductive adhesive, where the conductive part is made of metallized polymer spheres. The ceramic package was mounted onto an application printed circuit board (PCB) with filters, power management, and an interface contact, using soldered plastic core solder balls (PCSBs). The diameter of the data logger is less than 9 mm, and the height is approximately 5 mm. The data logger fits within 12.7-mm (0.50 cal.) projectile, and acceleration measurements have been performed during firing, flight, and recovery. The measured accelerations have been verified by comparing the calculated projectile muzzle velocities with Doppler radar measurements.
ISSN:2156-3950
2156-3985
DOI:10.1109/TCPMT.2017.2766263