QUAD production Fred Hartjes NIKHEF Nikhef/Bonn LepCol meeting - - PowerPoint PPT Presentation

quad production
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QUAD production Fred Hartjes NIKHEF Nikhef/Bonn LepCol meeting - - PowerPoint PPT Presentation

QUAD production Fred Hartjes NIKHEF Nikhef/Bonn LepCol meeting October 29, 2018 Simplified overview production QUAD started Mech. Wire DAQ/HV Ready Remarks assy bonded test 10 X X X DEMO, not electrically working 11 X X X X


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SLIDE 1

QUAD production

Fred Hartjes NIKHEF

Nikhef/Bonn LepCol meeting October 29, 2018

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SLIDE 2

Fred Hartjes 2 Nikhef/Bonn LepCol meeting. Nikhef. October 29, 2018

Simplified overview production

QUAD started Mech. assy Wire bonded DAQ/HV test Ready Remarks 10 X X X DEMO, not electrically working 11 X X X X X ~30 um alignment error 12 X X X ~30 um alignment error 13 X X X 14 X X 15 X X 16 X X 17 X 18 X 19 X 20 21 22 23 24

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SLIDE 3

Fred Hartjes 3 Nikhef/Bonn LepCol meeting. Nikhef. October 29, 2018

Production issues

Components available for full production (14 QUADs)

Wirebond boards + flexes HV boards COCAs + stumps Consumables

Glues + needles HV wire Thermal tape (out of production) Screws

Bottle necks

Presently only chips until QUAD 17 Guard electrodes not before mid November

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SLIDE 4

Fred Hartjes 4 Nikhef/Bonn LepCol meeting. Nikhef. October 29, 2018

Production issues cntd

Chip W23-I5 has small grid indentation

Might give HV short => chip discarded

Machining wirebond board

Flex on chip 14 damaged but possibly still usable

DAQ testing

QUAD 13 did not work

E-prom on LV board has to be programmed We have to do this for all new QUADs But no chips are needed for this

2nd SPIDR board now available

Wirebonding

Attachment problems on chips => ~5 wirebonds/QUAD have to be redone

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SLIDE 5

Fred Hartjes 5 Nikhef/Bonn LepCol meeting. Nikhef. October 29, 2018

New testbox

Optical glass plates delivered Mechanics almost finished But again delay with the production of the glass fibre components

Mid November

DAQ

2 SPIDR boards available

Including the one we use for production testing

Concentrator boards available Power boards ordered But programming concentrator not yet done