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CMS Note
Report number	CMS-NOTE-2004-035
Title	CMS Silicon Tracker Module Assembly and Testing at FNAL
Author(s)	Coppage, Don (University of Kansas, Lawrence) ; Demarteau, Marcel (Fermilab Batavia) ; Gerber, Cecilia Elena (Univ. Illinois, Chicago) ; Kahl, William E (Kansas State Univ., Manhattan) ; Medel, E (Facultad de Ciencias Fisico Matematicas, BUAP, Puebla, Mexico) ; Ronzhin, Anatoly (Fermilab Batavia) ; Sogut, Kenan (Fermilab Batavia) ; Shabalina, Elizaveta (Univ. Illinois, Chicago) ; Spiegel, Leonard (Fermilab Batavia) ; Ten, Timour Borisovich (Univ. Illinois, Chicago)
Submitted by	06 Jan 2005
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Free keywords	TRACKING
Abstract	This note is intended to provide details on a recent activity at FNAL in which CMS Tracker Outer Barrel modules were assembled and tested as part of a qualification of some of the sensor fabrication lines. At the same time the note serves to document the assembly and testing operations at FNAL for CMS silicon tracker modules. Of the 88 modules produced fo the qualification study at FNAL, one module was outside the mechanical alignment specification. For module bonding an introduced failure rate of 4.0x10^-4 faults per channel was observed. Eighty-five of the modules passed the full set of electrical tests. Two of the failures could be attributed to the sensors and one to a problem with the front-end hybrid. Additionally, a couple of the passed modules drew unusually high leakage currents. The high current modules are discussed in some detail.
Copyright/License	Preprint: (License: CC-BY-4.0)

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