CMS Tracker Week, CERN, 26-29 April 2005

27 Apr 2005CMS TrackerWeek - Module ProductionSalvatore Costa - Catania

Report from

Module BondingWorking Group

Salvatore CostaUniversità di Catania and INFN – Sezione di Catania

27 Apr 2005CMS TrackerWeek - Module Production 2 Salvatore Costa - Catania

Outline

1. Global info on production bonding of the Modules

2. Global review of Module bonding quality indicators

3. Open issues

4. Selected highlights from individual Center reports

CMS Tracker Week, CERN, 26-29 April 2005

27 Apr 2005CMS TrackerWeek - Module ProductionSalvatore Costa - Catania

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

CMS Tracker Week, CERN, 26-29 April 2005

27 Apr 2005CMS TrackerWeek - Module ProductionSalvatore Costa - Catania

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, At Gian Mario’s request, non-prod quality objects non-prod quality objects (modules, sensors, hybrids) now excluded:(modules, sensors, hybrids) now excluded:

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Jigs for TEC Module bonding

TEC CenterModule Types to

bond (# Mod)Who made jigs

(# jigs)

Backup center for this Ring’s Modules

Who makes additional jigs

(# jigs)

Aachen R6 Aachen (1) R3,R5p,R5s Aachen (2)

Hamburg R1p,R1s, R3 Hamburg (2/2/2) R7

Hamburg (2)Told Didier they can make jigs for other centers

Karlsruhe R5p,R5 R3 in preparation

Strasbourg R7 Strasbourg (1) R6 Karlsruhe (1)

Vienna R2p,R2s Vienna (1) Not decided yetNot decided yetCan make R2 jigsfor other centers

Zurich R4 (1100) Karl./Zurich (2) R6, R7?Karl./Zurich (1+1)Has R7 jig on loan from Strasbourg

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.

CMS Tracker Week, CERN, 26-29 April 2005

27 Apr 2005CMS TrackerWeek - Module ProductionSalvatore Costa - Catania

Selected highlights from

individual Center Reports

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Catania: new facilities• New bonding machine: Delvotec 6400 (100 kHz)

– Since March 8th

– Oldest of 2 Hughes dismissed– Now in clean room: Delvotec, newest of 2 Hughes– Bonding times down:

• TIB34: 8’ 10” vs. 45’ + x• TIB12: 12’ 15” vs. 65’ + x• Backs: 15” vs. 1’ + x

– Reliability improved:• Machine failure rate: negligible• Bonding failures: negligible• PHL- (DEAD) channels: none so far

– Experience:• 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– 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.