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A high‐reliability alumina‐platinum multilayer system for implantable medical devices
Author(s) -
Knudsen Arne,
Makino Hiroshi,
Morioka Kengo,
Otomaru Hidekazu,
Matsumoto Hiroshi,
Satoh Shingo,
Thom Andrew,
Munns Gordon,
Yamamoto Joyce,
Reiterer Markus
Publication year - 2018
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13070
Subject(s) - materials science , composite number , reliability (semiconductor) , degradation (telecommunications) , platinum , infiltration (hvac) , composite material , optoelectronics , biomedical engineering , electronic engineering , quantum mechanics , engineering , catalysis , medicine , power (physics) , biochemistry , physics , chemistry
A new Pt‐Al 2 O 3 multilayer composite system has been developed and validated with an Accelerated Life Test ( ALT ) to confirm its potential for long‐term use in implantable medical devices ( IMD ). Panels containing over 100 Pt vias were subjected to highly accelerated immersion testing in deionized water at temperatures ranging from 90 to 175°C. Deionized water was employed as it best represents the IMD use environment. Degradation of individual Pt vias was evaluated using fluorescent dye infiltration into the subsurface of the panels. ALT guided refinement of materials and processing to produce a Pt‐Al 2 O 3 multilayer composite system with promising performance for possible use in implantable devices.