Transcript ModProd Mtg - Istituto Nazionale di Fisica Nucleare

CMS Tracker Week, CERN, 26-29 April 2005
Report from
Module Bonding
Working Group
Salvatore Costa
Università di Catania and INFN – Sezione di Catania
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Outline
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Global info on production bonding of the Modules
Global review of Module bonding quality indicators
Open issues
Selected highlights from individual Center reports
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CMS Tracker Week, CERN, 26-29 April 2005
Global
review of Module bonding quality
that is,
Module Pull Test results
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# Modules Pull Tested
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Mean pull forces
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Mean pull forces
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StDev/Mean of pull forces
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StDev/Mean of pull forces
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CMS Tracker Week, CERN, 26-29 April 2005
Open issues
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Hybrid-related issues
1. Bonding problems on PA encountered while bonding APV’s
to PA in some TIB hybrids [mentioned by Alan/Gabriella]
 Display additional warning in Pre-bonding section of DB
Interface
• Faulty hybrids, with intermittent FHIT errors, erroneously
sent to CERN from HAS, then to Gantry Centers and some
already built into modules. [mentioned by Gabriella]
 All Gantry and Bonding/Testing Centers alerted
 I plan to generate from DB and distribute affected
Module list
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ModProd DB Browser Tool
At Gian Mario’s request, non-prod quality objects
(modules, sensors, hybrids) now excluded:
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Jigs for TEC Module bonding
We are continuing to monitor the preparation of attidional jigs for Center backup in TEC.
This is a table already showed at last Meeting, but with updates added yesterday.
TEC Center
Aachen
Module Types to
bond (# Mod)
R6
Who made jigs
(# jigs)
Aachen (1)
Backup center for
this Ring’s
Modules
R3,R5p,R5s
Who makes
additional jigs
(# jigs)
Aachen (2)
Hamburg (2)
Hamburg
R1p,R1s, R3
Karlsruhe
R5p,R5
Strasbourg
R7
Vienna
R2p,R2s
Hamburg (2/2/2)
Strasbourg (1)
Vienna (1)
R7
Told Didier they can
make jigs for other
centers
R3
in preparation
R6
Karlsruhe (1)
Not decided yet
Not decided yet
Can make R2 jigs
for other centers
Karl./Zurich (1+1)
Zurich
R4 (1100)
Salvatore Costa - Catania
Karl./Zurich (2)
R6, R7?
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Has R7 jig on loan
from Strasbourg
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CMS Tracker Week, CERN, 26-29 April 2005
Selected highlights from
individual Center Reports
Salvatore Costa - Catania
CMS TrackerWeek - Module Production
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Catania: new facilities
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New bonding machine: Delvotec 6400 (100 kHz)
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Since March 8th
Oldest of 2 Hughes dismissed
Now in clean room: Delvotec, newest of 2 Hughes
Bonding times down:
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Reliability improved:
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Machine failure rate: negligible
Bonding failures: negligible
PHL- (DEAD) channels: none so far
Experience:
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TIB34: 8’ 10” vs. 45’ + x
TIB12: 12’ 15” vs. 65’ + x
Backs: 15” vs. 1’ + x
45 modules bonded w/ new machine
Programs for all module types ready: TIB34, TIB12, TIB12sl, TIB12sr (back/front/pulltest/after_pulltest)
Usable bonding parameters window narrower than in Hughes
Best Pull forces achieved: ~10g
New operators
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2nd operator fully trained since last meeting already.
3rd operator: Russian engineer with temporary contract.
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Catania’s Delvotec 6400
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Other Center’s highlights
• FNAL: Last 2 weeks found problems related to excessive flex of PA
ends. Had to ask assemblers to move glue points. This helped but not
yet satisfactory.
• Firenze: In some latest TIB modules dirty area of PA near end (but not at
end) made bond difficult there.
• Padova: Uploaded pull test data after shipping modules to Pisa  usual
DB problem: pull test appears performed in Pisa
 recommendation: upload all of your data before shipping modules
to another center
• Torino: Due to share with Alice had to change Delvotec’s U/S frequency
from 100 to 60 kHz. New parameters. Similar performance.
• Vienna: Bonded 25 modules with new Delvotec 6400 (140 kHz). Pull
forces were marginally better than 100kHz. Observes whiskers on 2nd
bond (on PA).
• Zurich: Machines now equipped with additional USB camera (+ PC) to
ease the strain of looking all the time through microscope during
bonding. Model details available.
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