Laser fabrication of electrical feedthroughs in polymer encapsulations for active implantable medical devices.

Abstract:

:Hermetic electrical feedthroughs are essential for safe and functional active implantable biomedical devices and for a wide range of other applications such as batteries, supercapacitors, OLEDs and solar cells. Ceramics and metals have previously been the materials of choice for encapsulations, while polymers have advantages of ease of mass production and end user compatibility. We demonstrate a laser sealing technology that gives hermetic, mechanically strong feedthroughs with low electrical resistance in a polyetheretherketone (PEEK) encapsulation. The conductive pathways are wires and sputtered thin films. The water vapor transmission rate through the fabricated encapsulations is comparable to that of PEEK itself.

journal_name

Med Eng Phys

authors

Gough Z,Chaminade C,Barclay-Monteith P,Kallinen A,Lei W,Ganesan R,Grace J,McKenzie DR

doi

10.1016/j.medengphy.2017.01.010

subject

Has Abstract

pub_date

2017-04-01 00:00:00

pages

105-110

eissn

1350-4533

issn

1873-4030

pii

S1350-4533(17)30011-5

journal_volume

42

pub_type

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