Optoelectronics

In today’s fast-developing information society, methods allowing for rapid, broadband data transmission are becoming ever more important. For optoelectronic and high-frequency applications, increasing use is being made of compound semiconductors.

The gallium and indium-based materials most frequently for the latter differ from silicon in that their efficiency in interacting with light is significantly greater. Furthermore, they possess greater electron mobility, thus enabling the construction of transistors with higher cutoff frequencies. These types of compound semiconductors are therefore predestined for use in mobile wireless communication and in fiber-optic networks. In future, they will also capture new markets for optoelectronic applications such as LEDs.

Crystal Growing Systems

	Typ EKZ 3500 The EKZ 3500/200 is used to produce crystals up to 200mm in diameter. The typical batch weights range between 120 and 150kg, depending on the hot zone installed and the use of feeder for increasing the batch weight. The crystal lengths obtainable from such batch sizes measure about 1.5m in the cylindrical portion. ...  more

	Typ EKZ 3000 Compared to the crystal pulling equipment used until now, the concept and design of the 300mm plant signify a quantum leap. In developing the plant, consideration was given to all knowledge gained to date and to the available know-how of our customers worldwide. These furnaces provide ideal conditions for meeting crystal quality requirements. ...   more

	Typ Kronos In the vertical gradient freeze (VGF) process, a crystal solidifies directionally in a crucible with vertical temperature gradient. Compared to the Czochralski process, this provides the advantage of lower ...  more

	Typ FZ 30 The FZ-30 consists of a main, upper and lower chamber and an upper and lower pulling arrangement, all built as modules. The FZ-30 is fully equipped with access doors, a tank circuit, a control panel, a high frequency generator, a data logging system and an operator’s platform ...    more

Ultrasonic Measurement

PVA TePla also offers Ultrasonic Measurement for the nondestructive Inspection of High tech materials. Find more to this on the Homepage of our subsidiary PVA TePla Analytical Systems:

www.pva-analyticalsystems.com

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