DRAFT PROPOSAL FOR MODULE PROGRAMME 1997
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                         Y. Unno and A. Carter
                           Module convenors


*  MAIN OBJECTIVES: 

The remaining months of 1997 are regarded as the period in which the current
module designs are optimised in their mechanical, thermal and electronic
performance properties. By the end of this year there should therefore be
solid evidence from both individual measurements and full prototype devices
that MODULES for both the BARREL and FORWARD regions have all the necessary
functionality in order to provide the basis for the start of large scale module
production during the following year. It was agreed that this can only be
achieved if around 10 to 20 high quality forward and barrel modules can be
constructed and tested by the end of 1997, and in addition that they form
part of some multiple-module operation test, also during this year.

* MILESTONES:

Module designs to be explored	by May  1997
Thermal profile measurement	   July 1997			
Thermo-distortion measurement	   Aug  1997
Electrical noise measurement	   Nov  1997
Multiple-module operation          Dec  1997
(Beamtest of modules at KEK	   Jan  1998)
(Beamtest of modules at CERN       Jun  1998)

*  ACTIVITIES :
  
The programme to produce mechanical modules: There are extensive dummy
module production projects that need to provide input into the wafer
handling and placement procedures for the large scale production. These
will examine all aspects of module construction, through jigging,
glueing, bonding, measuring and general handling. These will be a source
of modules that can be used to confirm thermal properties. 


(i) Define the components for mechanical modules and responsibility for
supplying the parts by end-May, 1997:
 
(a) Dummy/mechanical grade detectors
(b) BeO frames/pieces
(c) TPG
(d) Dummy hybrids
(e) Fan-ins
(f) Dummy cables
(e) Cooling and Support systems

(ii) Agree on the precision of module geometry and a module construction
procedure that is compatible with the needs of future large scale
production, again by end-May 1997:


The programme to produce working modules is:

(i) Define and review the availability of the components for the 
working modules from the SCT community: 

(a) Detectors (forward and barrel):  available during July 1997?

(b) Front-end chips :  available for hybrid population during Aug 1997?
     (1) CAFE-M + ABC    [in view of the apparent delays should we consider 
     (2) DMILL            a revised programme with LBIC+CDP or SCT128B? ]

(b) Hybrids:  (forward and barrel)  [ specific details with respect to FE 
                                      chips to be discussed ]

     (1) design                                  by July 1997?
     (2) available                               by Sep  1997

(c) Low mass cabling :  

     (1) design                                  by July 1997?
     (2) available                               by Sep  1997

(d) Data link (opto board) :

     (1) design                                  by July 1997?
     (2) available                               by Sep  1997

(e) Power supplies :

     (1) design [needs details of which FE chips]by July 1997?
     (2) available                               by Sep  1997

(f) Back-end and DAQ system

     (1) design                                  by July 1997?
     (2) available                               by Sep  1997

(ii) To liaise these modules into an agreed combined test programme suitable 
for both CERN laboratory and beam tests: 

(a) Full-length assembly                         during Nov 1997

     (1) forward   (n? working modules)
     (2) barrel    (n? working modules) 

     Question: Where? If CERN, we need to arrange the necessary dedicated
     laboratory area and facilities.

(b) Future Beamtests: Possibilities are:

     (1) KEK                                       Jan 1998
     (2) CERN                                      Jun 1998

                        _______________________________

  ****   There are clearly several vital components that form part
         of the module construction and its powering and readout
         that are currently either not available or have uncertain
         delivery dates. We believe that a working meeting to get
         input from all participating parties should be arranged for
         a date as soon as possible, to discuss and agree the optimum
         module programme for this year.     
                         
                                                          ****

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