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Loading tool @ CPPM

The status update on our loading tool progress, including the completion of cells and heaters test and the upcoming work on glue deposition. Also, the need for dust protection and plans for QC and motorized tool adjustment.

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Loading tool @ CPPM

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  1. Loadingtool @ CPPM Eric Vigeolas 13/02/2019

  2. Status • Our tool is almost done few pieces are missing (we should get them this week • Cells and heaters have been received Flexible dowels Load cell + vacuum head

  3. Cells and Heaters test • Trial test has been done with cells and heaters successfully

  4. Test planning • Unfortunately our clean room will be unavailable for 5 weeks due to infrastructure work • Planned measurements are : • Full cells and heaters metrological scanning (especially thicknesses and planarity) • Cell on tool positioning repeatability measurements • Heater on tool positioning repeatability measurements • Heater pick up and placement accuracy and repeatability with the bridge

  5. Glue deposition • A lot of work remain to be done on the glue deposition technique • This will be done during the clean room work • Test program is: • Minimal glue thickness measurement • Load to achieve this thickness • Glue pattern optimization and repeatability measurement

  6. Conclusion • We should complete the work within 6 week from now and proceed to the heaters assembly • During trial tests we observed carbon particles pollution on the tooling  it is mandatory to find a protection to avoid this dust  TPG is very brittle sans can be a source of large conductive particles • We will start to tack cells and heaters geometry as QC step to better understand how flexible the tool needs to be • If the Z tool adjustment works fine we will put a motorized one to have a complete automatic assembly • The load cell is very accurate and deform linearly, we will characterized the load cell deformation vs load this could permit us to know the cell + module thickness and have a direct information on the glue thickness

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