Changing Weibull coefficient for calculation

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VTiederle
Sherlock User
Posts: 39
Joined: 24 Jul 2013, 12:32

Changing Weibull coefficient for calculation

Post by VTiederle » 02 Sep 2016, 02:30

I have some customer who wanted to calculate the failure probability with a b=2.5
Is it possible to change the default b=3 in Sherlock?

pwalters
Site Admin
Posts: 19
Joined: 05 Sep 2013, 09:53

Re: Changing Weibull coefficient for calculation

Post by pwalters » 07 Sep 2016, 10:26

The Weibull coefficient comes from the solder properties for a given package type. The Weibull may be modified by making changes to the solder.csv file in the Sherlock user directory. Attached is the default solder.csv file if there isn't a solder.csv file already in your Sherlock user directory. The User Data Files user guide has additional details.
Attachments
solder.csv
Sherlock default solder.csv file
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Paul Walters
Computer Architect
DfR Solutions, LLC
9000 Virginia Manor Rd, Ste 290
Beltsville MD 20705

bgray
Sherlock User
Posts: 2
Joined: 30 Sep 2016, 08:44

Re: Changing Weibull coefficient for calculation

Post by bgray » 12 Dec 2016, 15:02

I checked my user directory and there is no solder.csv file. How can I update Weibull shape parameter Beta in the current version of Sherlock?

Brian

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