HYBRIDS TEST @ IReS – STRASBOURG

 

           READ OUT HYBRID :

 

                            IReS and  LEPSI - Strasbourg have the responsibility to develop and produce the 15 000

Read-out Hybrids needed for the CMS Silicon Tracker. The hybrid can be defined as a multilayer polyimide board laminated on a ceramic rigidifier with an extension holding one or more connectors. Several active chips are implemented on this hybrid to control the read-out sequences and to perform the readout of the Silicon detector.

 

ACTIVE CHIPS ON-BOARD :

-         DCU ( Detector Control Unit ) used for the monitoring of some embedded parameters like supply voltage and currents on the front-end read-out modules – designed by CERN –

-         PLL (Phase Locked Loop) designed for clock and trigger distribution – designed by CERN-

-         APV25 (Analog Pipeline Voltage mode) for the read-out and the conversion of 128 channels. - designed by RAL -

-         MUX (APVMUX) a multiplexer for the outputs of 2 APV25 chips onto a single optical line driver input – designed by RAL -

          

 

    At the proptotyping level, each hybrid manufactured and assembled by the industry is tested at IReS.

    Four type of tests are performed :

 

-         A first Electrical test and functionality test using a special tool developed by the CMS institutes at Aachen / Louvain / Strasbourg : the FHIT

-         A VISUAL inspection to reports any possible physical damages or fault at the assembly level

-         A METRIC test in order to evaluate if the hybrid can be used later on automatic assembly and bonding systems

-         A PULL TEST  in order to verifiy the quality of the connexions made by the manufacturer

 

 

         Several pre-production batches have been evaluated :

 

         Batch / Run 1 :             100 TOB hybrids delivered in December 2002.

                                                        Manufactured and assembled by consortium 1

                                                         code number  30216711300227 to 30216711300322

 

         Batch / Run 2 :             100 TOB hybrids delivered in January 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216711300332 to 30216711300431

Batch unusable for final module production due to bad lamination

between  polyimide substrate and ceramic rigidifier

Tested to evaluate the quality of the circuit and chips assembly

 

         Batch / Run 3 :             50 TIB hybrids delivered in February 2003.

                                                        Manufactured and assembled by consortium 2

                                                        code number 30216681400325 to 30216681400331

                                                                      and 30216681400432 to 30216681400473

 

         Batch / Run 4.1 :          80 TOB hybrids delivered in April 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216711300474 to 30216711300553

 

         Batch / Run 4.2 :          20 TOB hybrids delivered in April 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216711300554 to 30216711300573

 

         Batch / Run 5.1 :          5 TIB hybrids (4 APV) delivered in Mai 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216681500589 to 30216681500593

 

         Batch / Run 5.2 :          5 TIB hybrids (­6 APV) delivered in Mai 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216771500584,   30216771500585,

                                                                             30216781500586*, 30216771500587 and

                                                                             30216771500588.

 

         Batch / Run 6.1 :          5 TEC hybrids (4 APV) delivered in Mai 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216631500579 to 30216631500583

 

         Batch / Run 6.2 :          5 TEC hybrids (6 APV) delivered in Mai 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216661500574 to 30216661500578

 

         Batch / Run 7.1 :          5 TOB hybrids (4 APV) delivered in June 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216721500599 to 30216721500603

 

         Batch / Run 7.2 :          5 TOB hybrids (6 APV) delivered in June 2003.

                                                        Manufactured and assembled by consortium 1

                                                        code number 30216731500594 to 30216731500598

 

 

* This hybride is a 6 APV down (…1678…….)