High-density hardware and software are developed as part of an initiative to greatly increase data center compute densities. Concept systems presented here are based on the Intel® Itanium™ processor family and are designed for a 1U rack-mount form factor. The current dual-processor system concept is targeted at the front-end server market (e.g., web hosting and mail routing), … [Read more...]
Thermal Calculations for Multi-chip Modules
Due to the flexible manufacturing processes for producing BGA packages, there has been an explosion of new package designs, many of which contain more than one integrated circuit chip [1]. Existing industry standards for IC package thermal characterization apply only to single-chip packages. This Calculation Corner will present some techniques for calculating the junction … [Read more...]
There's something for everybody on talk radio
I was doing my Sunday morning (2 a.m.) radio call-in show about electronics cooling (Hot Air on the Air with Tony K), when I heard a familiar voice on the line. "Herbie in Hereford," I greeted the caller, "You're on the air with Hot Air." "First time caller, long time listener . . .," the caller said. "Wow. There must be an insomnia epidemic," I interrupted. Johnny, the … [Read more...]
Flash Diffusivity Method: A Survey of Capabilities
The development, specification, and quality control of materials used in electronics packaging and thermal management often require the measurement of thermophysical properties.This data can be critical to a successful design, especially with the rapidly increasing cooling requirements that result from the packaging of higher performance devices. A variety of methods, involving … [Read more...]
The Thermal Conductivity of Thermal Insulators
This issue, we present an overview of a number of materials that are often used as thermal insulators. The world would have been much easier for thermal engineers if only the creator had provided us with a choice of materials showing the same range in thermal conductivity values as exists for electrical conductivity. Alas, this isn't the case. Thus, not a single one of the … [Read more...]
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