Design For Manufacturing - Principles and techniques that are used to ensure that a product is more easily manufactured, has higher yield during manufacture and/or exhibits lower cost of manufacturing. May be accomplished through choice of components, extra circuits for testing through to mundane ...

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2
votes
1answer
55 views

What does this statement about fiducials mean?

Found this slide and I didn't understand the last statement. All fiducials should have same image one layer down Are fiducials not top/bottom layer registration targets during assembly ? Are/Can ...
5
votes
1answer
111 views

PCB pads different diameter on top and bottom

When I had a DFM review on a board I have designed, the feedback was that the pads on layer 1 (top) needed to be reduced in size, to: "avoid the issue of copper temperature taking during wave ...
3
votes
2answers
311 views

Why are reversed geometry (0306, 0204) capacitors not used more often?

It seems that reversed geometry or low inductance ceramic chip capacitors (MLCCs) are simply better in every spec than regular geometry, and may allow using just one value to bypass instead of two (eg ...
-3
votes
2answers
93 views

PCB Design Software for work collaboration and minor alterations? [closed]

In my workplace I need PCB software to make minor changes to PCB layouts from our design partners and also to review and suggest changes to incoming designs. Our design partners use x and y. X is ...
0
votes
1answer
83 views

Symmetry in routing

I'm moving a design to an 8"x6" panel, and got thinking as I drew the route layer(white). The cutouts on the right two boards will be routed out. The left cutout will stay with the frame. During ...
3
votes
3answers
509 views

Via to Pad Clearance

Is it possible to put a via right next to the component pad it is connected to? In other words, if a via and a component pad are on the same net, can they touch as in the image below (red=top layer, ...
1
vote
1answer
380 views

Pogo Pins for 1.5mm Pitch Test Fixture

I'm working on a design and am going to source a smaller pcb and solder it to my design. Before using the sourced board I'm wanting to test it and so I'm trying to design a test fixture similar in ...
7
votes
4answers
4k views

Are acid traps real? (2014)

Some people online say that acute angles in trace routing will cause these problems: "Acid Trap" - PCB etchant gets stuck in the corner, and eats away too much, causing open circuit "Peelable" - ...
7
votes
1answer
463 views

How to make a device in miniSD or microSD form factor?

I would like to design and get produced a device in miniSD or microSD card form factor. This is not actually a memory card, it just uses that connector. There are other devices like that, for ...
42
votes
13answers
8k views

How to go from newbie to manufactured?

I'm a software guy who wants to get into the hardware side of things so I can enjoy the same creativity from software design in the physical world. I've found plenty of posts here regarding how to ...
5
votes
5answers
5k views

How close is too close for traces on a PCB?

Are these traces too close for conventional PCB manufacture? DRC check advises against it, but I haven't filled out all the settings for it. For scale, the resistors are all 0603.