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0542-4322

Thermal design of electronic equipment

Also listed as: תכנון תרמי של ציוד אלקטרוני

Keeping silicon cool, which in Israel is arguably the highest-paying direct application of mechanical engineering. Resistance networks, heat sinks, air and liquid cooling, and reliability against temperature.

Semester
Semester A
Weekly hours
4h
Counts as
Department electives
Interest areas
Flow and thermal design · Mechanical design

Comes after

  • Heat transfer

What it covers

Topics

  • Heat-transfer fundamentals in an electronics context
  • Junction-to-ambient thermal-resistance networks
  • Conduction in packages and printed circuit boards
  • Natural and forced-air convection
  • Heat-sink design and selection, fin analysis and effectiveness
  • Thermal interface materials
  • Fans, blowers and system airflow
  • Liquid cooling, heat pipes, thermoelectric coolers
  • Reliability against temperature: Arrhenius, electromigration
  • Transient behaviour and thermal cycling
  • Thermal CFD practice

Results worth carrying out

  • Junction temperature

    Tj=Ta+Q˙ RjaT_j = T_a + \dot{Q}\,R_{ja}
  • Junction-to-ambient resistance

    Rja=Rjc+Rcs+RsaR_{ja} = R_{jc} + R_{cs} + R_{sa}
  • Arrhenius acceleration factor

    AF=exp⁡ ⁣[Eak(1Tuse−1Tstress)]\mathrm{AF} = \exp\!\left[\frac{E_a}{k}\left(\frac{1}{T_{\text{use}}} - \frac{1}{T_{\text{stress}}}\right)\right]

Figures worth knowing

  • Thermal-resistance network diagrams
  • Heat-sink resistance against airflow
  • Temperature contour maps
  • Fin-efficiency charts

Quick answers

When is Thermal design of electronic equipment taught?

Thermal design of electronic equipment (0542-4322) is taught in Semester A (fall), 4 weekly hours. It counts toward “Department electives” in the Tel Aviv University Mechanical Engineering elective requirements.

What do I need before 0542-4322?

Before Thermal design of electronic equipment you need: Heat transfer.

What software is used in Thermal design of electronic equipment?

Thermal design of electronic equipment is normally taught with ANSYS Icepak, FloTHERM, COMSOL.

Which jobs does Thermal design of electronic equipment prepare you for?

Thermal design of electronic equipment is part of the preparation for these roles: Thermal engineer, electronics cooling.

Which interest areas include Thermal design of electronic equipment?

Thermal design of electronic equipment sits in these interest areas: Flow and thermal design, Mechanical design.

Related courses

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The topic outlines are not official syllabi. The university publishes a catalogue blurb per course, not lecture-by-lecture material, so each outline describes what a course of that name, at those hours, with those prerequisites teaches at engineering schools generally, cross-checked against the standard textbook for the subject. Treat it as an informed map, not as a transcript of the lectures.