100uPET Meeting Electronics in Department of Nuclear and Particle Physics
In this document, discussions and actions related to electronics for 100uPET meeting at the Faculty of Science's Department of Nuclear and Particle Physics are detailed. From feature lists to HV connector insulation issues, manual test results, and conclusions on manual operations regarding connector pins. Recommendations for tool design for mass production are also provided.
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Presentation Transcript
100uPET meeting electronics FACULTY OF SCIENCE Department of Nuclear and Particle Physics
FPC Done List of the feature for current, new, future flex See https://docs.google.com/spreadsheets/d/1QYfzEegoczTiyqudIEMJsy6rzWEvBpumUT_-aO6tafU/edit#gid=0 o Add HV ; add ground plane , remove soldermask/add coverlay o remove via? If ok =more elegant option Need Cross check: Daniel flex / Faser flex quote Request for new flex to PCBelectronics Pin removing See next slides Ask for a dedicated tool ( multi pin position) Franck/Laurent To do FPC (Flex Printed circuit) Remove via o Cross check: Daniel flex / Faser flex Ask quote to somacis SebastienCAP 2 28MAY24
MAB Done APP active component Ordered schedule google sheet: filled To do MAB Review MAB architecture proposal from Yannick Share MAB architecture with Mateus SebastienCAP 3 28MAY24
HV insulation on Connector HV issue on the FCC connector : Hirose FH41-50S-0.5SH(28) 100uPET HV range : 200V DC< HV <300V (TBC) The specification of the connector gives : o rated 50Vrms AC o Insulation test 100V DC o Withstanding voltage : 150Vrms AC insulation o The pitch of the connector is : 0,5mm o The width of a pin is :0,12mm o Insulation => 0,38mm SebastienCAP 4 28MAY24
Manual test result Solution: remove 1 pin on the connector to increase the insulation between the HV and the following pin .(rise insulation from 0,38 to 0,88mm ) Below, manual method result (with tweezer pushing pin from in toward outside ) : push SebastienCAP 5 28MAY24
conclusion Conclusion Manual result is quiet positive (it works) Tweezer is too big to do this manual operation : plastic and/or adjacent pin degradation Repeatability without damage is not guaranteed Need dedicated mechanical tool Which will be used for the mass production (qty 240 ) To improve repeatability, we have to : o Design High precision tool to push the pin (width ~ 0,1mm) o Lock precisely the connector in the tool SebastienCAP 6 28MAY24
