Minutes of the 27 February 2006 phone conference

1. Approval of minutes of previous meeting.
   The raw data server information for CPPM has been fixed but for modules 512459. The problem was in the scripts making the upload to the RDB and shoul dbe fixed from now on.
2. News on bare modules and components assembly and deliveries:
   1. deliveries from AMS
      22 modules delivered last week. Only 12 have been tested due to temporary lack of manpower in Milano. 1 was trashed (VDDA short + 3 chips with wide regions of disconnected), 1 is to rework, the rest 6 high quality and 4 low quality modules.
      23 modules have been shipped from AMS today. It is expected to recover from the backlog by tomorrow.
      Joerg would like to receive in Dortmund the whole share of AMS modules at the earliest possible time, so that they can be assembled (quickly) and put in the testing chain.
      Iskender is also open to receive other 10 bare modules.
      Attilio as about 20 modules ready to send, and others will become available during the week. It is agreed to send 20 modules now to Dortmund and a set of ~10 modules to Siegen later this week.
      About 12 good modules are also available in Genova.
   2. deliveries from IZM
      Next delivery should be of 29 modules. The delivery time depends on the recovery of the IZM person responsible for he module production chain. It is expected to be in about 14 days from now.
   3. distribution and flow of components (type 0 cables, shipping frames, FlexMCC)
      1. FlexMCC availability
         According to the inventory done in the German labs on Feburary 21^st, there are 24 flexMCC in Bonn and about 65 flexMCC in Dortmund and siegen. This include the 20 flexes from Maurice and is equivalent to the quantity needed to finish IZM production and cover the German quote of AMS modules (40 Dortmund+40 Siegen). That means there are 40 less flex with respect to the inventory of December which was indicating 100 flexMCC to which 20 from Maurice needed to be added.
         Maurice asks to make also an inventory of trashed flexes, in order to estimate the amount of flexes that may be debugged and possibly recovered. According to the PDB this number is quite high, but that does not match Joerg's knowledge of what is vailable in the labs. So, after the inventory is done, also the PDB should be updated accordingly.
      2. B-layer selection
         After restarting of stave production modules not flagged as B-layer are going used quickly and it is important to send some more to CPPM.
         Siegen has just shipped 10 layer 1-2 modules to CPPM, but this is all what they have.
         Dortmund is going to prepare a package to CPPM soon
         The lack of Layer 1-2 modules is due to the conservative cut in the B-layer flag and also to the need to have a gray area of modules suitable for both B-layer and Layer 1-2 stave in the early schedule where modules production was a bottleneck.
         Not it is proposed to change the ranking in order to keep a reserve of the better 400 modules for b-layer, leaving everything else available for the other layers.
         Attilio will prepare tomorrow an updated ranking application with the B-layer flag set in order to achieve that reserve of good modules.
      3. Modules in the hospital
         Maurice stresses we need to quantify the amount of modules in the hospital and, if needed, to develop strategies for their uses/recovery. In the worst case one may consider to remove the flex and use it on a left-over AMS bare module.
         At present Dortmund has about 20 modules in the hospital which cannot be characterized. Joerg will circulate a list of modules and a description of the problems.
         The other labs should do the same, and it is suggested to devote the meeting of March 13 to this discussion.
3. Lab tour of problems.
   • Dortmund
     No problem at all
   • Genova
     No MCC failures this week 1 module trashed because of low breakdown.
     An anomalous 150 mV drop was found on a test cable, that was affecting VDDD threshold measured recently. Test data on the PDB will be corrected.
   • LBL
     Continuing smoothly barrel module testing.
     A number of disk modules are not flagged as assembled because many bare sectors cannot be declared into the PDB. It is hoped to fix the problem this week.
   • Siegen
     They are open to assemble even some more AMS modules with respect to the original agreement, according to the availability of FlexMCC.