Loading stave 4000  Receiving test of modules : No problem despite some damages at one edge of few modules (AMS) One MCC failure in one module, reworked at Bonn  Preparing modules : Flex cutting tool (with Charlie’s blades) seems OK : We never obtain a really straight line but distance between detector and flex edge ranges between µm (correct). Few modules with test wire-bond still there. Measure of detector current just after flex cutting for each module  Loading : 2 problems : 1 “human” mistake : One module fall down (few cm) after picking up by the robot (vacuum problem was detected but ignored). These module has been retested (digital) before mounting it again (Module M6C) (Tool needed to handle a module for testing it without support)

Loading stave 4000 (con’t) Flex bow on one module : These defect, undetected before loading, induces an increase of the force applied by the robot during pick-up (from 10gf to 80 gf). (The module behaves as it was thicker ). We decided to load it without further test.(M3A)

Loading stave 4000 (con’t) Chip #15  Electrical tests after loading: Module M6C : More damaged bumps chip 0 and 15 (34 total) Module M3A (the one with bow): 1 chip missing in test register +digital Inspection of WB: very difficult Other ones : Few less significant differences except on module Unc-Bumps on this module : Flex =0 Received=46 Load=105 (mainly on chip#3)

Thermal tests Module with flex bow Mean DT/W

Loading stave 4000  Survey : Completely done : One misalignement (300 µm) has been detected between the 2 sides of the stave. Seems to be due to misalignement of the stave in the loading robot : To be more carefully checked during prod  Burning and post-burning tests : to be done after stave survey in 3 sites