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Isolation gap between power planes?

autodeskguest

Hi,

 

is there a way to increase the isolation gap between the two adjacent

power planes/polygons but NOT to increase the isolation gap between the

polygon and the traces/pads inside the power plane?

 

Here is the picture:

 

https://www.dropbox.com/s/rsf9r3tvz3wz5wj/power_planes.png

 

Please note, this picture is only to demonstrate the problem(s), it was

not intended to represent the actual traces.

 

As you can see there are two power planes (7V and 5V power plane). The

outer power plane (5V) is of the rank 2 and the inner one (7V) is of

the rank 1. The isolation parameter for both polygons is 0.012 and that

is the width of the gap (marked by arrows).

 

What I would like to do is to increase the gap between 5V and 7V

polygons but to keep the isolation of 0.012 between the power plane and

its inside (traces, pads, vias, ...) but didn't find how I could do

what I described.

 

And one more question - as you can see, despite having the 7V power

plane in the top layer of the PCB the autorouter did not connect the 7V

pad to that power plane but it rather connected it using the trace in

the bottom layer and making a via (making the 7V plane useless). How

can I force the autorouter to connect that particular pad to the power

plane in the top layer? I know I could manually route that trace in the

top layer before starting the autorouter but would like to know if

there is a way to force the autorouter to use the power plane in the

top layer for that particular pad.

--

Let There Be Light

Custom LED driveri prema specifikacijama

http://tinyurl.com/customleddriver

 

Chupo

 

Parents

  • In article <ng0dgq$faf$1@baboon.cadsoft.de>, warrenbrayshaw

    <warrenbrayshaw@paradise.net.nz> says...

    Hi

    If by 'forum' you are referring to 'EagleCentral'

     

     

    Yes, that is what I thought.

     

     

    you will see there

    that your 'Real Name:' is listed as AM2

     

    Log into EagleCentral and there, in the Control Panel, change your real

    name.

     

    Perhaps its matching on your email address

     

     

    Interesting, for the moment I thought the name could be matched on my

    email address but I didn't remember if I've ever used forum access

    instead of the news server so I checked old emails to find the

    confirmation/subscribtion email(s) but I didn't find any and then I

    concluded I never used the forum image

     

    Moreover, I did not find any Eaglecentral account data in my account DB

    files so I find to still be a mystery if/when I registered image I'll try

    to find the acc data in some more unusual places on my backup discs.

     

    Thank you for your reply.

    --

    Let There Be Light

    Custom LED driveri prema specifikacijama

    http://tinyurl.com/customleddriver

     

    Chupo

     

Reply

  • In article <ng0dgq$faf$1@baboon.cadsoft.de>, warrenbrayshaw

    <warrenbrayshaw@paradise.net.nz> says...

    Hi

    If by 'forum' you are referring to 'EagleCentral'

     

     

    Yes, that is what I thought.

     

     

    you will see there

    that your 'Real Name:' is listed as AM2

     

    Log into EagleCentral and there, in the Control Panel, change your real

    name.

     

    Perhaps its matching on your email address

     

     

    Interesting, for the moment I thought the name could be matched on my

    email address but I didn't remember if I've ever used forum access

    instead of the news server so I checked old emails to find the

    confirmation/subscribtion email(s) but I didn't find any and then I

    concluded I never used the forum image

     

    Moreover, I did not find any Eaglecentral account data in my account DB

    files so I find to still be a mystery if/when I registered image I'll try

    to find the acc data in some more unusual places on my backup discs.

     

    Thank you for your reply.

    --

    Let There Be Light

    Custom LED driveri prema specifikacijama

    http://tinyurl.com/customleddriver

     

    Chupo

     

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