Difference: LhDaqLoad (8 vs. 9)

Revision 92017-01-21 - TomErikHaugen

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Left Handed Daqload

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  Not visible in this picture is a small opening on the mini-sensor outer bias ring, where there is an opening to allow the wire bonder to connect to the aluminum. There are four of these on the mini-sensor, one near each corner
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picture would be beneficial

Mini sensor was not cut correctly, and as a result is shorting the HV and HVret ring together. To remedy this the HVret ring should be disconnected from ground. The mini-sensor bias ring should instead be wire bonded to the hybrid ground (the open gold pads next to the ABC130 chip). Remove the HVret connection on the other side of the hybrid and connect that pad to the hybrid ground. This should short the grounds together, and leave the HVret ring disconnected from ground (so that it can sit at -400V with the HV pad). This is shown in the following image

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Mini sensor was not cut correctly, and as a result is shorting the HV and HVret ring together. To remedy this the HVret ring should be disconnected from ground. The mini-sensor bias ring should instead be wire bonded to the hybrid ground (the open gold pads next to the ABC130 chip). Remove the HVret connection on the other side of the hybrid and connect that pad to the hybrid ground. This should short the grounds together, and leave the HVret ring disconnected from ground (so that it can sit at -400V with the HV pad). This is shown in the following image
  20161013_OversizeBiasing.jpg

Preliminary Results (2016-10-17)

 
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