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New Infrared Start Sensor for Touchless Board Temperature Measurement

Oct 29, 2007

At the Productronica 2007 tradeshow in Munich, Germany, FINETECH will present a new solution for contactless board temperature measurement � the infrared start sensor.

Perfect rework results are only possible when all parameters of the heating process can be reproduced reliably. For thick multilayers it is also possible to integrate software-controlled bottom heating into the process. However, the temperature of the PCB may vary under different external factors of influence. To carry out bottom heating processes, based on different initial board temperatures, would have an influence on the results if the starting point of the top heat process was not adapted. Therefore, it is recommended to use the start sensor to ensure the process can be exactly reproduced under all circumstances.

Compared to conventional temperature measurement directly at the PBC, the new infrared start sensor offers several benefits: no in-process handling is needed during the process due to contactless infrared measurement and a laser pointer helps in finding the best measuring spot.

The infrared start sensor is characterised by an outstanding profile reliability of +/- 5 �C and allows for increased peak temperature accuracy. The PCB is only exposed to as much heat as is necessary to reduce thermal stress significantly.

Of course, existing placer control boxes can also be retrofitted with the infrared start sensor.

About FINETECH

FINETECH is a leading manufacturer of innovative rework and micro assembly equipment for the latest advanced packages. The modular design of the FINEPLACER� platform enables a multitude of applications, from reworking SMDs to the highly accurate placement of flip chips or opto-electronic components. FINETECH is headquartered in Berlin, Germany, with offices in Tempe, Arizona, and Shanghai, China.

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