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QPS

  • Meeting directives, such as ELV REACh and RoHS continues to be essential requirements. QPS delivers on all of these needs. QPS complies with the conditions set forth in the ISO 9001: 2015.

     

    QPS helps automotive engineers to specify the right products in a sustainable world. The steady evolution of the program has enabled many global OEM’s to specify ever-higher performance standards and represents:

    • Approved applicators: Applying these products to a common audited standard ensures the same coating performance throughout the applicator base.
    • High performance: Exceeding the high demands for corrosion resistance and exceptionally consistent torque and tension characteristics.
    • Global consistency: Wherever ZinKlad, DecoKlad or XMAPP standards are applied, applicators know they are using the same high-performance products.

    What do we do?

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    QPS flow chart

    We supply and develop QPS standards that meet and exceed OEM specifications. We validate applicators processes by conducting audits, carrying out inspections and testing the production output to make sure they meet pre-defined QPS standards and agreed technical requirements.

    We monitor and report results on a global scale to be able to service and continuously improve performance. 

    Why do we do what we do?

    We believe that we are able to assure a global consistent performance at a local level meeting the global OEM requirements with a select number of world class applicators.

    How do we do what we do?

    ESI Automotive has developed a unique Quality Performance System called QPS that tackles the challenges for high-performance automotive coatings. OEM’s can be confident that the same coatings and consistent performance are available worldwide.

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Car dial with red line

Electric vehicle power efficiency

Silver sintering enables higher power density for the power electronics between the battery and the electric motor

Silver sinter technology means moving from a conventional soldered die-attach interconnection to a bulk silver bond. The increased thermal conductivity and low resistivity of silver enable a six-fold increase in current throughput capability, compared to a standard soldered bond.

The impact of this is to increase the possible power density for the critical power electronics that sit between the DC battery source and the AC motor – the traction inverter.  The power cycling capability is improved by an order of magnitude while the current density per integrated circuit device can be increased by at least 50%.  

Silver sintering is performed at low pressure in the temperature range of 190-300°C, but it produces a bulk silver bond with a melting point of 962°C, extremely high thermal conductivity, in the range of 200-300 W/m.K, compared to 26-55 W/m.K for solders (depending on the exact composition of the solder alloy), and very low electrical resistivity (2.5-3.5 µΩ.cm, compared to 14.5-17 for solder alloys).  This means the die temperature can be maintained at a safe level even while switching considerably more current; additionally, the capability of a silver sintered bond to withstand higher temperatures also increases performance, since it allows the semiconductors to function with much higher junction temperatures.

This means designers can create more powerful electric vehicles without having to increase the semiconductor content or other components of the electric drivetrain.