Front end Hybrid Industrial Tester

1
Front end Hybrid Industrial Tester
UCL Louvain (L. Bonnet, V. Lemaître, X.
Rouby) vincent.lemaitre_at_fynu.ucl.ac.be
In collaboration with RWTH Aachen (M. Axer, F.
Beissel, T. Franke, J. Mnich) IRES Strasbourg
(JD. Berst, P. Graehling, P.Juillot, C. Maazouzi)
http//www.fynu.ucl.ac.be/themes/he/cms/activities
/tracker/hybrids.html
Vincent Lemaitre tracker week 29.01.03
2
Current measurements
Comparisons between FHIT ARC CMS-like
ARC
FHIT does not send triggers while measuring
current consumption whereas ARC and CMS-like
system do
FHIT
This problem is solved FEH needs more current
when triggered
3
Electrical Test limits
From statistics on FHIT measurements intervals
m-3s m3s where m is the mean of
distribution and s the RMS
These limits can be resized with a multiplicative
parameter, common for all limit values (available
in configuration file).
4
Functional Test limits
These are the ARCS parameter All these limits
are accessible in the configuration file
5
FHITS 1.3
New version 1.3 (updated interface, as asked by
industry)

• Display the of good and bad hybrids of the
  current day

• All part-numbers accepted 1663 ? 1674 (new
  firmware)

6
Conversion to XML

• conversion to XML direct contact with CERN
  people to fit to their wishes
• C routine being written in Louvain not
  necessary _at_ industry
• proposed scenario
• production and tests _at_ industry ( logfile
  creation )
• delivery _at_ CERN of hybrids and logfiles (on
  CD-R)
• 1 delivery FEH 1 CD ( copies)
• tests _at_ CERN (with FHIT ? logfile creation)
• creation of XML files (by running the C
  routine) _at_ CERN
• transfer to database

7
Number of FHIT set-ups
8
Test procedure
S A M T E C
S A M T E C
N A I S
N A I S
E R N I
E R N I
FHIT
To be tested
Test setup

• Industry 1 Naked hybrids (w/o APVs)
• Industry 2 Hybrids
• Before bonding pitch adapter ? LINK to DB (XML)

_at_ Industry _at_ CERN
9
Mechanics
New mechanics -Easier to handle -Insure
thermal contact (cooling) -Probe for test of
bias return line
Heavy cover with auto-retractile probe
Pad on hybrid for test of bias return line
Hybrid
Fine positioning plugs
Cooling contact
10
Summary

• Difference between set-ups for Current
  Measurement is understood
• First estimate of Limits for ET and FT have been
  evaluate (to be continued)
• Most recent release of software distributed
  (FHITS 1.3) -improved display -all part number
  included (firmware)
• Agreed procedure for loading FHIT data into DB
  (almost operational)
• Proposal for the number of FHIT set up
• Test procedure including thermal contact of
  hybrid and test of bias return line.