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Automatic Vacuum Soldering Systems
Rapid, accurate and repeatable soldering in a low oxygen environment is a crucial process step in the manufacture of many of today's optoelectronic packages.
West Technology Systems Limited have developed an Automatic Soldering Oven which enables reliable soldering of components in a cleanroom production environment.
The stainless steel vacuum chamber is evacuated to below 5x10-2mbar by a dry scroll pump. A number of back filling and re-evacuation cycles are then performed to ensure that the oxygen concentration within the chamber is low enough for heating to commence. Five individually controlled quartz lamps then heat the components to 145°C, +/- 2°C.
Each quartz lamp is controlled independently by a Eurotherm controller. A separate over temperature control monitors the total chamber temperature. Heating will not begin until backfilling is complete and the oxygen concentration is below a predetermined level (as measured by the oxygen monitor).
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All
tooling is supplied along with a number of interchangeable work
holders. This enables an operator to load a batch of components
into a work platen whilst another batch is already in process. |
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The system is PLC controlled with a MMI showing current status. The number of backfill cycles can be adjusted by an operator with password access.
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Industry Sector: Optoelectronics
Application:Rapid automatic soldering of optoelectronic packages.
Description: Cleanroom compatible system consisting of stainless steel chamber with viewing window. Individually controlled quartz lamp heaters with independent temperature monitoring. Evacuated to better than 5 x 10-2 mbar by dry scroll pump. Automated nitrogen backfill and oxygen monitoring. PLC control with manual override.
