True wafer temperature measurements in Molecular Beam Epitaxy, or MBE, is an applications story (Application Note 18) from LayTec GmbH in Germany about the benefits of this technology in semiconductor processing, especially for GaAs (Gallium Arsenide) and InP (Indium Phosphide), two materials that are opaque at the wavelength region of interest in the Near Infrared (NIR), 950 nm.

The lead in to the applications note reads as follows:

“LayTec’s in-situ sensors are state-of-the-art in-situ growth monitors for basic growth studies, process development, process transfer and for enhancing run-to-run reproducibility in production environment. These sensors are offered for a variety of growth systems in MBE, MOVCD and other growth techniques. All sensors are available with LayTec ?s True Temperature measurement mode based on emissivity corrected pyrometry: EpiTT, EpiR TT and EpiRAS TT“.

You can download a copy of the entire note: “True wafer temperature measurements in MBE “- CLICK HERE - PDF - 122 Kb

A downloadable PDF FIle from Mikron Infrared describes the use of IR Thermometers in manufacturing operations using thermoformed plastic sheet materials.

Thermoforming Applications: Thermoforming Temperature Measurement

The Thermoforming Application

Thermoforming is the process of using heating elements and/or cooling elements to mold or shape
some type of material. Typically this material will be a type of plastic.

The process follows a path from extrusion to molding. Most thermoforming companies will use extrusion machines to extrude the plastic, which then will be pulled into an oven and heated until it reaches a certain temperature.

Once this temperature has been obtained the plastic is moved out of the oven into a cooling and molding zone. Usually the machine runs on a timer so the temperature of the plastic varies and is inconsistent within the oven.

The plastic is molded and cooled either by water-cooling or air-cooling. Most applications use water-cooling either sprayed onto the plastic or pushed through the metal mold.

Finally, the plastic is moved to a cutting zone where the shapes are cut out of the plastic. This can be done either manually or automatically as well.

This application has a couple of different sections that are ideal for infrared pyrometers and imaging.
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The 9th Quantitative InfraRed Thermography conference, QIRT2008, July 2–5, 2008 Kraków, Poland, will be preceded by several special training courses.

The Courses are scheduled on Wednesday, July 2, 2008.
The tuition is € 100 (380 PLN) for one or more courses. Two courses will be presented in paralel, in the morning (A and B) and afternoon (C and D).

(A) Basic Thermography (4 hours)

by Prof. X. Maldague, Université Laval, Canada
by Prof. V. Vavilov, Tomsk Polytechnic University, Russia

(B) Applications of Thermography to Thermo-Fluid-Dynamics (3 hours)

by Prof. G. M. Carlomagno, Universita di Napoli Federico II, Italy

(C) Application of thermography to buildings (3 hours)

by Prof. E. Grinzato, CNR-ITC, Padova, Italy

(D) Medical Thermography (1 day)

by Prof. E. F. J. Ring, Dr P. Plassmann, Prof. K. Ammer, Dr R. Thomas; Medical Imaging Research Group, Faculty of Advanced Technology, University of Glamorgan, UK

(E) Application of dynamic thermography to Nondestructive Testing (3 hours)

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