By Topic

Long-term stability of resistors embedded in printed circuit board

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Damian Nowak ; Faculty of Microsystem Electronics and Photonics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370, Poland ; Paweł Winiarski ; Adam Kłossowicz ; Andrzej Dziedzic
more authors

This paper presents principle of manufacturing process of thin-film resistors embedded in printed circuit boards (PCB) as well as their chosen electrical and stability properties. Test structures were fabricated on FR-4 laminate with Ohmega-Ply® technique basing on nickel-phosphorus alloy (NiP). The thickness of resistive foil was 0.4 μm and 0.1 μm with sheet resistance 25 Ω/sq. and 100 Ω/sq., respectively. Moreover, part of the samples was covered with two different types of cladding - Resin Coated Copper (RCC) or Laser Drillable Prepreg (LDP). The long-term stability of components was determined basing on resistance changes during ageing tests. The resistance was measured in two cases: at room temperature after keeping of samples at elevated temperature and/or humidity or directly during heating of resistors on hot plate. The measurements were carried out for structures after fabrication process as well as for resistors trimmed with Nd-YAG laser or treated with voltage pulses.

Published in:

Proceedings of the 2011 34th International Spring Seminar on Electronics Technology (ISSE)

Date of Conference:

11-15 May 2011