


Prototypes
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Five versions of flex hybrid have been built to date, evolving to
support electronics, module and mechanical requirements along the way
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v1.0 produced our first flex hybrid modules
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v1.x introduced a more efficient routing scheme and other improvements
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v2.x supported development of services connection to the flex hybrid
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v3 (supporting MCC-A & FE-I) and v4 (supporting MCC-I & FE-I) have seen
continued improvements in routing, power decoupling for individual FE chips and
services access.
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Several working v4 modules to date
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Comparison of noise of single chip (bare) modules and flex hybrid modules indicate
that the flex hybrid is doing a good job providing clean power and signal routing
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v4 is designed to fit within the mechanical envelope
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Should be very near final design (still need system tests)
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100 Compunetics v4.1 built and used in modules to date
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122 Dyconex flex just received and small number being rapidly processed and tested
to build modules at Bonn and LBNL
universtiy of oklahoma, r. boyd, 18 july, 2002, us atlas, flex hybrids