High performance thermal interface materials (TIMs) inserted between the CPU lid and heatsink - generally referred to as the "TIM2" - provide a reworkable low resistance thermal path in the package stack-up. It is well-recognized that users need to monitor the thermal performance of the TIMs to verify vendor data [1, 2]. Less well-known is that the TIM2 can also mechanically … [Read more...]
Using a simple air recirculation model to explore computer rack cooling
Figure 1. Schematic diagram of simple computer rack air recirculation model. Figure 2. Schematic diagram of computer rack air recirculation model with heat exchanger in rear of computer rack. In an article in the November 2006 issue of ElectronicsCooling it was noted that “advances in computer clusters have resulted in the introduction of higher density server … [Read more...]
Thermal conductivity of common alloys in electronics packaging
Thermal conductivity of common alloys in electronics packaging Jim Wilson, Associate Technical Editor Property Thermal Conductivity (W/mK) @25°C CTE (ppm/°C) @25°C Copper 395 17.1 Aluminum 200 23.5 CuMo 160-185 7.0-9.0 CuW 180-220 6.5-8.5 Kovar 17 5.9 Alloy42 12-15 4-6 Invar + … [Read more...]
Piezo actuators for electronics cooling
Introduction Today, there is a specific demand by the electronics consumer market: more devices using low power processors with multiple simultaneous CPU functions. Due to the significant demand in computing needs, the International Technology Roadmap for Semiconductors (ITRS) 2005 predicts an increase in the overall power consumption for some platforms [1]. The cooling issues … [Read more...]
Effect Of Improved Thermoelectric Zts On Electronic Module Coolability
In recent years there has been a growing interest in the application of thermoelectrics to electronics cooling. Attention has been focused on thermoelectric cooling both as a possible means to enhance module cooling and to address the chip hot spot problem. Effort has been directed towards the development of new bulk materials and thin film micro-coolers. The usefulness of … [Read more...]
- « Previous Page
- 1
- …
- 123
- 124
- 125
- 126
- 127
- …
- 176
- Next Page »