Printed Circuit Boards (PCBs) are composed of a sandwich of alternating layers of insulating substrate and conducting copper layers. The copper layers are etched to form connecting tracks between components as well as earth/ground or power planes. The simplest PCB has one substrate layer and one ...

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1answer
60 views

Correcting printed PCB (add a via)

This board is a prototype for the project and is for testing. It is missing the soldermask and silkscreen layers, so correcting mistakes is very possible. The board was printed correctly, but somehow ...
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2answers
77 views

Connecting copper pours in Cadence (OrCAD) PCB Designer

I'm trying to climb the Cadence learning curve, coming from an Eagle background. My board is four-layer, with a ground plane underneath the top layer. I have a surface mount IC that has an exposed ...
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votes
4answers
158 views

Import PCB outline made from connected lines from Inkscape

I have designed an outline for a PCB in Inkscape and wish to import it into Eagle, but the guides I have found leave me with lots of little lines in Eagle, not a continuous line, what's more is there ...
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1answer
114 views

Altium, it is possible to mirror the silk screen?

I am trying to build a simple PCB at home. It is a single layer PCB, and I would like to transfer the silk screen on the back side, mirrored. But for that, I need to mirror text, etc. To design the ...
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0answers
54 views

.PCB view from protel 1.5

I have some .PCB files created through protel 1.5 and advanced pcb when I had win98. How could I see or convert my files now on Win8. Any suggestion?
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1answer
187 views

Benefits of top and bottom ground pour in multilayer boards with proper ground plane layers and stackup

I'm trying to get some analytical feeling for the use of ground pours on bottom and top layer in multilayer boards with proper stackups such as (for example). Top Gnd Sig1 Power Power Sig2 Gnd ...
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1answer
542 views

PROTEUS ARES PCB double side Layout - Force bottom side lyout for selected devices

I want to make a double side PCB design in ARES ( I have the desing in ISIS and I know how to do it), but for some specifics devices (Integrtate Circuit Socekts DIL16 and DIL28) I don't how to force ...
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0answers
42 views

dual layer films from two single layers

Around here we have some supply problems, aka a 2-sided PCB could cost easily a hundred dollars. I was wondering if anyonw have succesfuly integrated (sticked) two 1 layer copper films into a dual ...
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1answer
2k views

PCB Ground and Power Planes

I am desigining a 4-layer PCB with the following stack-up: Signal Top, Ground Plane, Power Plane, Signal Bottom. This is the first PCB I make like this, which includes a noisy SMPS with a switching ...
3
votes
1answer
201 views

Eagle TI CC2540 Ground Pad?

I have been working on a PCB layout. It's my first time working with Eagle, and my first time prototyping a board. I am using a CC2540. I understand that this uses a RHA package which has a ground ...
0
votes
1answer
447 views

6-Layer Stackup for PCI express design

I'm pondering over a stackup for a 6-layer board using a couple of PCIe connected ICs. My first idea was to use the following Stackup: Signal GND Power (Multiple power supplies, so it's a split ...
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votes
2answers
2k views

How to complete 3D Export PCB in Altium

I know how to export a STEP file in Altium, but is there a way to export the whole PCB, just as it is displayed in Altium's screen? I mean with the traces, vias, components, etc.
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1k views

The best stack-up possible with a four-layer PCB?

I'm designing a 4 layer PCB and I know that the standard stack-up is Signals GND VCC Singals (GND and VCC can be switched depending on the layer with more signals) The problem is, I don't ...
6
votes
2answers
235 views

Do you think this board can be done in 2-layer or should I go to 4-layer?

Here are 3 photos of the board I am trying to build. The photos are the top, the bottom and the bottom with the analog portion (Buffer+ADC) inside a red box. It is an ohmmeter. Most SMD parts are on ...
3
votes
1answer
697 views

How do I disable clearance check for a layer or for only some certain elements?

I'm designing a PCB in Altium Designer. There is a very large heat sink in my project. When I put it on the PCB, there will be plenty of empty space under it where I can put other small components. ...