M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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Status of RD49 and COTSand objectives of a one-

day review

RD49 - Study of the radiation tolerance of ICs for LHC.

(LEB 1997)

COTS - Project to coordinate the selection, evaluation & procurement of Commercial-Off-The-Shelf (COTS) components for use in the radiation environments

of the LHC. (LEB 1999)

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 motivation + objectives Situation in 1997:

Rad-hard ASIC technologies were: Expensive (small-volume, hi-rel military & space

markets). Disappearing rapidly (end of cold war). Not qualified for LHC radiation levels (except DMILL). Unreliable (low yields, run-to-run variability).

RD49 was launched to: Study deep submicron (DSM) approach for rad-tol

ASICs. Select a single DSM technology for LHC. Develop demonstrators of LHC-type ASICs.

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 - achievements Proved rad-tol design method.

Extreme TID hardness, good SEE immunity.

IBM 0.25m CMOS process selected. Frame Contract for LHC (12 MCHF, until Q4 2003). Export license (USA, EU, Canada, Japan). Support by CERN & RAL (Design kit, library, MPW).

LHC baseline designs (from RD49 demonstrators)

10 authorized “design centres”.(CERN, RAL, INFN, IN2P3, PSI, Heidelberg, FNAL, LBL, UPenn, Columbia)

Pixels, APV25, Pascal, GOL, and many more.

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 - what next ?

RD49 completed. all R&D objectives surpassed.

New common project: Support 0.25m technology access for LHC. Prepare for obsolescence of 0.25m

process. R&D for future experiments?

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 review – objectives (1)

Review support of IBM 0.25m process: Design kit and rad-tolerant library Rad-soft commercial library Technical and commercial interface to IBM Organization of Multi-Project Wafers (MPWs) Legal issues (restrictions, export licences, etc.) Manpower for support

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 review – objectives (2) Review requirements of expts

Baseline LHC programmes: Volumes, procurement schedules, etc.

LHC luminosity upgrade & other expts Extreme rad-hardness (e.g. NA60 beamscope)

=> cryogenic strips--> cryogenic electronics.

Low-cost, large-area pad/pixel detectors => R&D on monolithic architectures.

(integrating detector on electronics wafer)

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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RD49 review – objectives (3) Scenarios for handling future obsolescence

of IBM 0.25m process: IBM frame contract is valid until Q4 2003

Extensions negotiable (in principle) but: Uncertain life-time of 0.25m process. HEP is a very small “customer” (or disturbance?)

LHC procurement strategies (Buy and store spares. How many?)

Set up rad-tol support for a next-generation technology.

Criteria for selecting and evaluating next technology. Estimate required resources (manpower, CAE, test equipment). Review challenges and define demonstrators (e.g. large

dynamic-range analog circuits in 1 volt technology) Lead time to support a new technology ~ 3 years ?

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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COTS motivation + objectives Before ~1999:

COTS risks were poorly understood: No risk management strategies. No (or inappropriate) qualification procedures. Preparing production with unqualified components and

sub-systems.

COTS common project (LEB 1999): Raise awareness of COTS risks. Coordinate effort for selection, qualification, procurement.

=> Created network: Faccio (RD49), Dentan (Atlas),Stefanini (CMS), Christiansen (LHCb),Formenti (Alice), Rausch (machine)

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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COTS achievements Raising awareness

COTS workshops; external consultants (Space). One-week Technical Training course. SEE threshold & cross-section measurements made

=> predictions of SEE rates in ATLAS/CMS.

Coordination and sharing of effort ATLAS policy on radiation-tolerant electronics. CMS COTS test protocol (muon boards). Elec. System Reviews consider COTS. Coordination of irradiation runs (Cyclone, Prospero, Pagure). CERN COTS database (sharing test results). “Missing” COTS (voltage regulators)

=> common spec & development with industry

M. Letheren, LECC 1 June 2001; Status of RD49 and COTS; objectives of one day review

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COTS review - objectives

Review and summarize: Qualification procedures. Irradiation facilities. COTS database (CERN and external) Procurement procedures (e.g. qualified lots).

Review status of Voltage Regulators: Prototype performance Specs. Versus requirements Required volumes Procurement plans