Articles from January 1996 Issue

A valve-less fluid pump for electronic cooling

January 1st, 1996

In a research project at the Royal Institute of Technology we have developeda pump based on a new fluid pump principle with no valves. The pump consists oftwo fluid flow rectifying diffuser/nozzle elements which are…read more

Applying computational fluid dynamics to heat sink design and selection

January 1st, 1996

Abstract This article describes how Computational Fluid Dynamics (CFD) can help inthe selection and/or design of a heat sink for electronics cooling applications.CFD modeling complements the other tools in the thermal tool kit: calculationsbased on…read more

DELPHI – A status report on the European -union funded project for the creation and validation of thermal models on electronic parts

January 1st, 1996

The accurate prediction of the operating temperatures of critical electronicparts at the component-, board- and system-level is seriously hampered by thelack of reliable, standardised input data. The DELPHI project is addressing thisproblem by the development…read more

Electronic package characterization per JEDEC standard

January 1st, 1996

Introduction With the increase in power density resulting from advancements insemiconductor packaging technologies comes the issue of heat dissipation. Heatis generated as a result of electrical energy being converted to thermal energyduring circuit activities. The…read more

Environmental stress testing – a product improvement method

January 1st, 1996

Introduction and Summary In today’s competitive environment, the electronics industry is focusing onbusiness process re-engineering or product improvements with emphasis ondevelopment and manufacturing intervals and costs, warranty costs, fieldreliability, and customer maintenance costs. Some of…read more

Why the traditional reliability prediction models do not work – is there an alternative?

January 1st, 1996

Introduction While it is generally believed that reliability prediction methods should beused to aid product design and product development, the integrity andauditability of the traditional prediction methods have been found to bequestionable, in that the…read more