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Misc. for SVD3

Misc. for SVD3. Hybrid FLEX Ladder assemble. Hybrid (Ver. Feb21 by Princeton). Design fixed. In check by Vienna, KEK, Niigata Start test production soon. FLEX. 2 DSSD test in Vienna is in progress Thick Au plating (=0.3um) results short circuit.

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Misc. for SVD3

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  1. Misc. for SVD3 • Hybrid • FLEX • Ladder assemble

  2. Hybrid(Ver. Feb21 by Princeton) • Design fixed. • In check by Vienna, KEK, Niigata • Start test production soon.

  3. FLEX • 2 DSSD test in Vienna is in progress • Thick Au plating (=0.3um) results short circuit. • Made thinner(~0.05um) one and sent to Vienna • To improve bonding condition • Add Cover layer=> Au plating • Need plasma ashing to remove glue etc. • Delivered in the next week Print Denshi cover layer cutting Asahi Denka Inspection Ni-Au plating ?? Plasma ashing CASIO Niigata

  4. Problem on SVD2.1 FLEX Gold Bridging (short) from upper flex to traces below

  5. Assemble • We have all ladder components( bridge, rib..) • Assembling procedure • Assemble half ladder (DSSD, Hybrid, FLEX) • Wire bonding • Test (w/ APVDAQ? Need connector for nanonics flat cable) • Assemble full ladder (bridge, rib) • Where? • Princeton? • Hybrid production. APVDAQ. • Less man power? • Melbourne? • send Jig from KEK? • In Japan? • How to make bonding? RIKEN, HPK…

  6. Plan Princeton or/and Melbourne All ladder assemble work KEK Plan A Send all parts Melbourne/HPK/RIKEN KEK KEK Half ladder Assemble DSSD+FLEX+Hybrid Wire bonding Full ladder Assemble Test Plan B

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