All Questions
Tagged with manufacturing pcb-fabrication
19
questions
22
votes
4
answers
2k
views
Environmentally sustainable electronics
I am part of my company's work to become more environmentally friendly and sustainable. On a high level for the company that means pursuing ISO certifications (such as ISO 14001) and working according ...
- 607
11
votes
3
answers
1k
views
What exactly makes small quantity PCB production costly compared to large quantity PCB production?
The per-PCB cost of manufacturing a small number of PCB is 10 times or more compared to the per-PCB cost of manufacturing a large number of PCBs.
So what is it exactly that adds to the cost?
People ...
- 135
6
votes
7
answers
2k
views
Automatic serial number on a PCB
Imagine you're printing 10 PCBs and you want each PCB to have its own serial number, but you want to add the serial numbers automatically from Kicad. Is this possible or not? Does it depend on the ...
- 316
6
votes
1
answer
848
views
How do PCB fabrication houses make PCBs?
I know the different ways of making PCBs at home, but I can't seem to find a lot of information on how board houses professionally make their PCBs. Is this how they do it?: http://www.youtube.com/...
- 4,546
5
votes
3
answers
1k
views
Good way to affordably manufacture low-quantity PCB?
I am thinking about making an open-source development board for a specific field in power conversion.
If there is interest from local universities, I will manufacture a few hundreds of these boards. ...
- 1,656
4
votes
3
answers
249
views
how to purchase simple custom devices with low quantities? [closed]
We have need for a few simple devices, mostly as adapters and connectors between other devices.
One example is:
6-pin Molex connector with 20-30V between two pins
24V to 12V DC-DC voltage converter
...
- 444
4
votes
1
answer
1k
views
From what pitch should I consider ENIG finish
My design (4-layer, FR4, 1.6mm) has a couple of ICs with 0.5mm pitch pads and some LEDs with 0.4mm pitch pads, very small LEDs.
Should I consider ENIG (more expensive) or will HASL do the job?
I read ...
- 2,127
4
votes
2
answers
1k
views
Placing through hole and SMT on the same side
I have a design with huge push buttons (with 6 TH holes.)
There's a few of them so they do take up quite a bit of space mechanically from the top.
I was thinking of placing the majority of the SMT ...
- 757
4
votes
0
answers
59
views
Attempting to patch the "G75 Bug" on a Gerber Level
Context
I am currently looking for alternative PCB manufacturers for my company and have sent Gerber files to some (Chinese) companies.
These Gerber files have already been used in the past by various ...
- 2,803
2
votes
1
answer
2k
views
Any better alternative to produce PCB than UV etching
I hope this is an appropriate question to ask it here.
I work for a small start up company that has a limited budget. We have UV box, etching tank, etc from manufacturer like Mega UK.
Our problem ...
- 3,305
2
votes
1
answer
222
views
PCB Thickness Variability
How much variability is there in the thickness of a standard PCB?
Let's say I order a 1.6mm FR-4 board. Will the actual thickness range 1.5mm-1.7mm? 1.4mm-1.8mm? 1.59mm-1.61mm? What is the (...
- 105
1
vote
1
answer
300
views
Soldermask bridge gap too small - PCBWAY
I've got a PCB design which contains a chip that uses the QFN (7x7) package.
Because of the package size the pins are very close together and the pads are 0.2mm apart, which is smaller than the ...
- 131
1
vote
4
answers
378
views
Choosing a PCB Manufacturer/Assembler for the first time [closed]
I've just finished designing my first PCB, and I'm about to send out a batch of emails for quotes from manufacturing/assembly shops. My design is super simple: the only components are 7 identical SMD ...
- 303
1
vote
1
answer
5k
views
Which minimum tracking/spacing size is actually required for a 0.2mm gap between LQFP leads?
I am uncertain as to the manufacturing specifications that I will need for a PCB I am hoping to get produced. The most complex component is the MCU (STM32151RCT) which has a recommended footprint for ...
- 49
1
vote
1
answer
56
views
Electronics Manufacturing Engineers: What needs to meet IPC-6012 the finished copper or the starting copper foil?
I have a PCB that has a finished copper thickness of 1 oz on all layers and must meet IPC-6012 requirements for Class 2.
Does this mean that the manufacturer can start with 0.5 oz copper foil then ...
- 111