VLO series has been extended by an overpressure process systems

Centrotherm developers have extended the VLO product family. With VLO HP centrotherm meets the market requirements and enables soldering with overpressure.

The new VLO product member is based on the proven “modular VLO-assembly”, which offers highest flexibility. This feature allows the installation of various process gases in order to use the system for several applications.

Gauge pressure within the process chamber can individually be adjusted to maximum 3 bar. This option has positive effects to void reduction during the soldering. Furthermore, the overpressure is useful for hermetic gas-sealing within the component. To ensure that overpressure is kept accurately, a special controller monitors and verifies the pressure in the chamber. For customers from MEMS, Power Semiconductor, Advanced Packaging, Defence as well as Optoelectronics, this attribute is very interesting. Basically, the system can be used for many other applications and products.

• The basic model is equipped with one nitrogen gas line. Other inert gas lines are possible as well. Depending on customer application and soldering material, two additional gas lines can be added. The products of the VLO family have the possibility to run processes with the following gases: N2/H2?(95/5%), HCOOH (with bubbler), 100%H2. The safety technique has been especially expanded for the VLO HP, to be prepared for propane gas processes. Depending on applied gas lines the VLO systems offer special safety equipment to assure a safe condition for man and machine.

• Software and recipe-creation is characterized by the well-known comfort of a Touch Panel PC. Any process parameters (temperature, pressure, gas flow etc.) can be evaluated for traceability. Except the overpressure option for VLO HP, the software interface is identical within the whole VLO product range.
• The proven heating and cooling system of the VLO product family is used for the VLO HP as well. With this concept, VLO HP achieves heating rates of 50 K/min and cooling rates of 160 K/min and gives the advantage of short process cycle times.

  The whole VLO product range fulfills the machinery directive EN ISO 13849.