Qualification procedure for moisture in embedded capacitors

authored by
Hélène Frémont, Jörg Kludt, Massar Wade, Kirsten Weide-Zaage, Isabelle Bord-Majek, Geneviève Duchamp
Abstract

Embedding passives in PCB permits to gain in integration density while enhancing electromagnetic compatibility performances. The choice of the dielectric film is fundamental for large frequency band stability of embedded capacitances. However, these materials are prone to water absorption, which can lead to functional parameter degradations and additional stresses at the interfaces. This paper presents experimental capacitors embedded in FR-4, and finite element simulations of moisture absorption in various dielectric materials. Technological choices, as well as the qualification procedure, can be improved thanks to the simulation results.

Organisation(s)
Laboratorium f. Informationstechnologie
External Organisation(s)
Universite de Bordeaux
Type
Article
Journal
Microelectronics reliability
Volume
54
Pages
2013-2016
No. of pages
4
ISSN
0026-2714
Publication date
01.09.2014
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Safety, Risk, Reliability and Quality, Condensed Matter Physics, Surfaces, Coatings and Films, Electrical and Electronic Engineering
Electronic version(s)
https://doi.org/10.1016/j.microrel.2014.07.117 (Access: Closed)