Analysis Tech Semiconductor Thermal Analyzers - Thermal Testing for Semiconductor Devices

The Servo Controlled Wind Tunnel provides uniform, forced-convection test conditions necessary for measuring the thermal performance of electronic components in non-still-air conditions. Since the thermal resistance of air-cooled electronic devices depends strongly on air flow velocity, accurate measurement and control of flow speed is essential for accurate test results. With a device-under-test fixtured in the test section, thermal resistance measurements can be conveniently and accurately performed over a range of air flow speeds.

Wind Tunnel Features

▪	Integrated hot-wire-anemometer air speed measurement
▪	Feedback control for uniform air-speed
▪	Ample hatch-access to test section
▪	Two piece construction for easy transit and storage
▪	Spatially uniform air velocity ± 0.9% in test section
▪	Flow steadiness to ± 1% in test section
▪	Sturdy, heavy-gauge aircraft aluminum construction
▪	Convenient display and control console
▪	Compact and safe "table top" axial fan design
▪	Selectable stand-alone operation
▪	Complete including test fixturing, thermocouple probe, and anemometer

Wintunnel Control Console
The control console provides a continuous LCD display of the air flow speed in feet per minute. Air speed can be controlled manually with the front panel knob or automatically from a Thermal Analyzer. The linkage of the Analyzer with the Wind Tunnel allows complete software coordination of component test and air flow speed. When testing in batch mode, the air flow speed is automatically indexed to the next value in the prepared batch-test list after equilibrium has been detected in the current test. In this manner a battery of tests can be initiated to generate complete curves of thermal resistance versus air flow speed without operator attendance.

An optional, plug-compatible infrared probe and adjustable support is available for measurement of IC case temperatures. These probes are factory calibrated by Analysis Tech for operation from 20°C to 120°C with an accuracy of ± 1.5 °C for non reflective surfaces with a radiation emissivity of 0.8 - 1.0, suitable for plastic and ceramic surfaces. The view angle of these probes is such that the spot diameter is equal to half of the distance from the probe tip to the surface.

Performance Specifications

Typical Speed Range	0 to 1000 fpm / 0.0 to 5.0 m/s (other ranges available)
Uniformity (center 90% of test section)	±1% max
Nozzle Ratio	4.4:1
Maximum Stabilization Time Required	50 seconds
Supply Voltage	120 VAC 50/60 Hz unless otherwise requested

Mechanical Specifications

Inlet Diameter	22"
Test Section Diameter	10.5"
Test Section Axial Length	12"
Overall assembled length	58"
Dimensions	22.5" H x 58" W x 22.5" D
Weight	50 lbs

Ordering Information
Order numbers: Wind-Tunnel-1000. Standard delivery: 6 weeks. Ex Works (EXW)
(Custom sizes and speed ranges are also available.)