CCD connectors

[Maki Sekiguchi]

Olaf,

 We often use connectors for flexible printed circuit (FPC) in dewar 
at cryogenic temperature or at room temperature. We used 1.0mm pitch 
and 0.5mm pitch FPC connectors. As far as I can recall, we did not 
have any troubles with them. They are really nice zero-insertion force 
connectors and very small. I really hate both Nanonics and Micro Dsub 
connectors. Nanonics are ok in size but they have very large insertion 
fources. Micro-D subs also require large insertion forces. (Of coruce, 
this problem can be solved by using proper pushing screws.) And for 
the mosaic CCDs of 10K x 10K size, handling individual wires for 
either Nanonics or MincroDsub is a big trouble. The FPC and the 
connector for FPC provide very compact and nice way to run signals for 
large mosaic CCDs.

	Best regards,

      Maki Sekiguchi

          maki at indy.mtk.nao.ac.jp
          National Astronomical Observatory
          Dep. of Optial & IR