CMS Pixel Detector Miscellaneous
Phase 1 Phase 2
Layer 1 Replacement Layers 2-4
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Message ID: 149     Entry time: Fri Mar 27 14:32:11 2020
Author: Andrey Starodumov 
Category: HDI test 
Subject: List of suspicious HDIs 
Here are HDIs that the first time tested showed 500-600V measured on the pin or directly on the HDI pad instead of 800V:
5006, 5007, 2005
3014, 3017, 3019, 6021

I put them in the box called "For Wolfram ...." on the Wolfram's desk in the lab.

Nevertheless, I think this is an artificial issue that mmight be caused by a cable. I retested 5006, 5007 and 2005 with a new
cable and in all cases measured HV=790V what is normal.
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