A 2.5-D Integrated Data Logger for Measuring Extreme Accelerations

Author
Gakkestad, Jakob
Sollund, Tomas
Dalsjø, Per
Tveit, Bjørn
Taklo, Maaike Margrete Visser
Wright, Daniel Nilsen
Helland, Susanne
Kristiansen, Helge
Johnsen, Christian
Date Issued
2017
Keywords
Akselerasjon
Målinger
Permalink
http://hdl.handle.net/20.500.12242/828
https://publications.ffi.no/123456789/828
DOI
10.1109/TCPMT.2017.2766263
Collection
Articles
Description
Gakkestad, Jakob; Sollund, Tomas; Dalsjø, Per; Tveit, Bjørn; Taklo, Maaike Margrete Visser; Wright, Daniel Nilsen; Helland, Susanne; Kristiansen, Helge; Johnsen, Christian. A 2.5-D Integrated Data Logger for Measuring Extreme Accelerations. IEEE Transactions on Components, Packaging, and Manufacturing Technology 2017 ;Volum 7.(12) s. 1930-1939
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Abstract
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.
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