0

Full Content is available to subscribers

Subscribe/Learn More  >

Humidity Control Simulation for Electronics Packaging

[+] Author Affiliations
David G. Myers

Raytheon Missile Systems, Tucson, AZ

Paper No. IPACK2003-35057, pp. 767-777; 11 pages
doi:10.1115/IPACK2003-35057
From:
  • ASME 2003 International Electronic Packaging Technical Conference and Exhibition
  • 2003 International Electronic Packaging Technical Conference and Exhibition, Volume 2
  • Maui, Hawaii, USA, July 6–11, 2003
  • Conference Sponsors: Electronic and Photonic Packaging Division
  • ISBN: 0-7918-3690-8 | eISBN: 0-7918-3674-6
  • Copyright © 2003 by ASME

abstract

An important aspect of environmental control is the protection of equipment from the harmful effects of humidity. It is often desirable to desiccate a sealed volume in order that it satisfy a dryness requirement over the duration of its service life. Desiccant sizing, along with proper sealing, become important design elements in ensuring that such a requirement is achieved. To this end, Raytheon has developed a simulation tool to analyze and predict the humidity within sealed volumes. The pertinent physical principles that are modeled are permeation of water vapor by diffusion, pneumatic leakage, the hygroscopic properties of sealed materials, desiccant characteristics, and the kinetic model of ideal gas mixtures. The simulation has the capability of imposing any external environmental condition, consisting of diurnal cycles of temperature and humidity. The physical principles which underlie the simulation are described. An example of simulation results, design decisions and lessons-learned are presented.

Copyright © 2003 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In