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Cadence Allegro SPB 16.0

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quattro44

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allegro spb

Hi to all, I am a new user of Cadence Allegro SPB 16.0 but I have been doing PCB layouts for quite a while already using another software(Zuken CR-5000). I would like to know how i can go about making irregularly shaped pad stacks in Allegro. And if there is anyone that can give me tutorial videos or documents for Cadence Allegro, I would greatly appreciate it. Our company is tight on budget so they decided not to get a professional Cadence Allegro trainor for us. Thank you very much.
 

cadence spb tutorial

I would like to know how i can go about making irregularly shaped pad stacks in Allegro
Click to expand...

Is inside Pad editor select shape from drop off menu, you can create your shape separately and then use them to define your pad stacks.

There are manuals and some training videos that comes with installation package.

Good Luck,

M
 

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    quattro44

    Points: 2
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cadence allegro

Thank you for your reply.
I have another question though, is there a way to automatically generate a solder resist for the irregularly shaped pad that I made? Its a bit time consuming having to draw another shape. Or is there a way to expand all the edges at the same time?
 

cadence allegro 16.0

Or is there a way to expand all the edges at the same time?
Click to expand...

Not sure what you mean by that?

But in the same window you can copy paste to any or all layers.

M
 

cadence spb

I have attached an image to explain what I meant. The black line is the pad, while the red line is the solder resist. As you can see, the resist is 6 mils bigger on all sides compared to the pads. I drew the pad already, is there a way to automatically make it 6 mils bigger on all sides so that I can use that as a shape for my solder resist? Or do I have to draw the entire solder resist separately also?

 

cadence 16.0 drawing option

As far as i know there is not automatic solder resist generation option in Cadence. But you can use the ix and iy commands to move all the edges 6 mills in x or y direction.
 

cadence allegro spb

Thanks for your reply. But I am new in Allegro, where can I find the ix and iy command?
 

allegro spb tutorial

hello,

You have to enter those command in the command line window, at the very bottom of the allegro's window. You select the shape to move and then enter "ix 6" to move the shape.

Regards,
Franck.
 

cadence allegro tutorial

Hi,

You can use z-copy shape from edit menu to oversize the shape.

Edit --> z-copy shape --> Options (control panel) --> (shape options) expand--> give the value that the shape to be oversized...

After that, Delete the existing shape.

Hope this will help u...

Thanks,
Ahar...
 

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    quattro44

    Points: 2
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cadence allegro commands

z-copy will be a better option,while coping itself u can scale the shape
 

Re: allegro spb

quattro44 said:
Hi to all, I am a new user of Cadence Allegro SPB 16.0 but I have been doing PCB layouts for quite a while already using another software(Zuken CR-5000). I would like to know how i can go about making irregularly shaped pad stacks in Allegro. And if there is anyone that can give me tutorial videos or documents for Cadence Allegro, I would greatly appreciate it. Our company is tight on budget so they decided not to get a professional Cadence Allegro trainor for us. Thank you very much.
Click to expand...

Hi Quattro44,
My company is considering switching to CR-5000 from Cadence Allegro SPB.
I used Mentor Board Station and Allegro for last 10yeas, zero knowledge in Zuken.
Can you please tell me your opinion about the two (Allegro and Zuken)?
Fasted design cycle is what the management expectation with Zuken.
Thanks in advance.
 

Why to change from SPB into CR5000? I think SPB it's top EDA design. but i don't know for compare price. i have little knowledge Zuken CADStar. now i use PADS Altium and Allegro.
 

aey said:
Why to change from SPB into CR5000? I think SPB it's top EDA design. but i don't know for compare price. i have little knowledge Zuken CADStar. now i use PADS Altium and Allegro.
Click to expand...
There are many reasons companies decide switching (not always technical or budgetary). Thanks for your reply.
 

Hi quattro,

If you want to generate solder resist for irregular shaped pad means. You can use Edit -> Zcopy option.

Thanks
Geekay
 

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