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 Is micro-via in pad assumed to be routed?
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cioma

125 Posts

Posted - 10 Aug 2016 :  11:24:56  Show Profile  Reply with Quote
If a micro-via in a pad is used does Pulsonix assume the connection between two exists (i.e. routed)?

steve

United Kingdom
316 Posts

Posted - 10 Aug 2016 :  12:40:36  Show Profile  Visit steve's Homepage  Reply with Quote
if the pad and the via are on the same net, then positioning the via over the pad will be seen as a completed connection, however, if you pull the via away from the pad, then a connection will be seen, so no it does not see it as routed, just joined.


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cioma

125 Posts

Posted - 10 Aug 2016 :  12:54:32  Show Profile  Reply with Quote
Hmm, then it seems Rules Spreadsheet doesn't take that into account: nets with micro-vias that are centered on a pad are still flagged as not complete. But if I move micro-via away from the pad and then connect them with a track it's marked as complete.
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steve

United Kingdom
316 Posts

Posted - 10 Aug 2016 :  13:59:46  Show Profile  Visit steve's Homepage  Reply with Quote
As stated in Help for the Rules Spreadsheet, the Complete column is a box that is checked if the differential pair has a full track path between both pin pairs, in the case of the example, it does not.

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cioma

125 Posts

Posted - 10 Aug 2016 :  14:34:07  Show Profile  Reply with Quote
So does it mean that if any segment of a diffpair is not "paired" (as in "Add Differential Pairing") then it will not be marked as complete?
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steve

United Kingdom
316 Posts

Posted - 10 Aug 2016 :  15:45:22  Show Profile  Visit steve's Homepage  Reply with Quote
The Complete is as in 'completely routed (tracked)'

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cioma

125 Posts

Posted - 11 Aug 2016 :  10:16:26  Show Profile  Reply with Quote
I've sent a layout file to support@pulsonix.com and described situation in more details. Could you please take a look? Perhaps I'm missing something obvious there.
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steve

United Kingdom
316 Posts

Posted - 11 Aug 2016 :  12:02:35  Show Profile  Visit steve's Homepage  Reply with Quote
We can recognise some inconsistency in the feedback to the user, where the net connection check reviews the status of a route differently to a Diff Pair completion as previously mentioned, the checks are different. A log 41054 has been raised suggesting that something like Auto Weld could be offered if the system recognises a nets microvia being positioned in a nets pad whilst a connection lies between them, so completing the tracking between the two.

Currently I suggest completing the track to the pad, then move the via over it.

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