Author Topic: DIP package has PAD or Via  (Read 4419 times)

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Offline RoadRunner

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DIP package has PAD or Via
« on: December 27, 2011, 12:36:48 pm »
hi

   i am designing a double layer pcb which has a DIP package  microcontroller  and few smd ic

i want to know that the pad which are used by all the dip package they are via or just pads ( i mean they will appear on a single layer)


if they are just pad then how to convert them to via so that they will appear to both of the layer

what are things that i should i keep in mind while generating the Gerber files
 
 

Offline Psi

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Re: DIP package has PAD or Via
« Reply #1 on: December 27, 2011, 12:53:06 pm »
What PCB package are you using?
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alm

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Re: DIP package has PAD or Via
« Reply #2 on: December 27, 2011, 04:29:09 pm »
According to my crystal ball it's Eagle.
 

Offline 8086

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Re: DIP package has PAD or Via
« Reply #3 on: December 27, 2011, 04:31:24 pm »
DIP pads appear on both sides and are plated through. At least they do when I use them. I use Sparkfun's Eagle library for common packages like these.
« Last Edit: December 27, 2011, 04:35:29 pm by 8086 »
 

Offline RoadRunner

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Re: DIP package has PAD or Via
« Reply #4 on: December 27, 2011, 05:05:07 pm »
i m using eagle 5.11
 

Offline mikeselectricstuff

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Re: DIP package has PAD or Via
« Reply #5 on: December 27, 2011, 05:11:24 pm »
If it has component lead through it, it's a pad. If it's only to ocnnect between layers, it's a via.
The only differences are that vias tend to not have openings in the solder resist layers, and they can be moved around by the routing process (auto or manual).
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Offline RoadRunner

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Re: DIP package has PAD or Via
« Reply #6 on: December 27, 2011, 07:16:49 pm »
Sir

     i want  though hole pad to appear on both side of the pcb and connected internally (via)

how to convert them to via
 

alm

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Re: DIP package has PAD or Via
« Reply #7 on: December 27, 2011, 08:43:09 pm »
Did you read the post by mikeselectricstuff just before your post? Both pads and vias are plated through in two layer designs.
 

Offline RoadRunner

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Re: DIP package has PAD or Via
« Reply #8 on: December 28, 2011, 12:57:36 pm »
Thank you sir

 i helped me a lot
 


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