Thermal Metrology; Mch Case Measurement; Supporting Test Equipment; Thermocouple Attach Support Equipment - Intel 3210 Thermal/Mechanical Design Manual

Thermal Metrology

5
Thermal Metrology
The system designer must make temperature measurements to accurately determine
the thermal performance of the system. Intel has established guidelines for proper
techniques to measure the MCH IHS temperatures.
how to accurately measure the MCH case temperature.
5.1

MCH Case Measurement

®
Intel 3210 and 3200 Chipset cooling performance is determined by measuring the
case temperature using a thermocouple. For case temperature measurements, the
attached method outlined in this section is recommended for mounting a
thermocouple.
Special case is required when measuring case temperature (Tc) to ensure an accurate
temperature measurement. Thermocouples are often used to measure Tc. When
measuring the temperature of a surface that is at a different temperature from the
surrounding local ambient air, errors may be introduced in the measurements. The
measurement errors can be caused by poor thermal contact between the thermocouple
junction and the surface of the integrated heat spreader, heat loss by radiation,
convection, by conduction through thermocouple leads, or by contact between the
thermocouple cement and the heatsink base. To minimize these measurement errors,
the approach outlined in the next section is recommended.
5.1.1

Supporting Test Equipment

To apply the reference thermocouple attach procedure, it is recommended that you use
the equipment (or equivalent) given in
Table 5-1. Thermocouple Attach Support Equipment (Sheet 1 of 2)
Microscope
DMM
Thermal Meter
Special Modified Tip Solder
Block Fixture
Solder
Flux
Loctite* 498 Adhesive
Adhesive Accelerator
Kapton* Tape
Thermocouple
Intel® 3210 and 3200 Chipset Thermal/Mechanical Design Guide
Item
Olympus* Light microscope or equivalent
Digital Multi Meter for resistance
measurement
Hand held thermocouple meter
Test Fixtures (see notes for ordering information)
40 W 120 V~60 Hz modified soldering
iron
Miscellaneous Hardware (see notes for ordering information)
Indium Corp. of America
Alloy 57BI/42SN/1AG 0.010 Diameter
Indium Corp. of America
Super glue w/ thermal characteristics
Loctite 7452 for fast glue curing
for holding thermocouple in place
Omega*, 36 gauge, T type
(see note 2 for ordering information)
Section 5.1
Table 5-1.
Description
Measurement and Output
provides guidelines on
Part Number
SZ-40
Fluke 79 Series
Multiple Vendors
Weller SP40L solder tool
52124
5RMA
49850
18490
OSK2K1280/5SR TC-TT-T-36-72
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