All Questions
Tagged with manufacturing pcb
63
questions
0
votes
2
answers
170
views
Newbie on SMD. From THM to SMD PCB design and manufacturing [closed]
I have made a prototype of a device using THM technology. Now one of my successful friends has suggested me to move the design to SMD technology to reduce component and PCB manufacturing costs. I have ...
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
0
votes
0
answers
265
views
Leaded wave soldering temperature on "lead free PCB"
I've a question regarding what temperature is recommended on a leaded wave soldering machine?
Background of question
The case is that I've the option to use a leaded (when customer allows) or a lead-...
- 626
3
votes
2
answers
2k
views
Many small via vs few bigger via
While I was designing a board I thought, if we want to make a better path for the current what is the best choise?
Small vias and big in numbers or fewer but with bigger hole?
- 2,053
0
votes
1
answer
2k
views
Half-etched fiducials Vs through-cut fiducials
While making PCB, I added 8 fiducials (fids) marks so that pick and place machines use these marks as referent points on the PCB to position the surface mount components (Packages) during assembly.
...
9
votes
3
answers
2k
views
Anyone know the premise of this PCB assembly note?
The assembly note states:
Bake bare PCBs in a clean and well ventilated oven prior to assembly at 125*C for 24 hours.
Why is this necessary?
- 312
2
votes
2
answers
216
views
Connectors in high volume manufacturing?
How are connectors such as USB handled in high volume manufacture?
Would the panelized board leave room to place these connectors or would the panel be cut apart and the connectors added later. Is ...
- 7,127
4
votes
1
answer
498
views
PCB solder mask inconsistency
We have a small PCB that has been manufactured and assembled several thousand times. However, the last lot showed inconsistencies with the solder mask:
It looks like the solder mask is very thin, ...
- 10.1k
1
vote
2
answers
177
views
Nomenclature for tested PCB assemblies
I want to unambiguously refer to an assembled PCB that has been tested. I am familiar with the terms:
PCB - unpopulated printed circuit board
PCBA - PCB assembly, a PCB with all the parts fitted and ...
- 4,172
6
votes
1
answer
956
views
Meaning of "caps not pop with watch crystal" in a schematic
caps not pop with watch crystal
You can find this sentence in ADuC 841 evaluation board schematic. Could someone explain what does it mean?
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
0
votes
2
answers
181
views
Tools used to manufacture entire digital systems
I am new to electronics and am trying to wrap my head around the various tools used for producing various digital components.
My understanding of HDL languages like VHDL and Verilog is that they ...
- 645
39
votes
7
answers
3k
views
How do I make sure my electronics design is good from manufacturing perspective? [closed]
I am a beginner in electronics design. I have some experience with fairly complex PCB design. I want to design a product that will hopefully sell a lot. How do I ensure that the design is inexpensive ...
- 491
4
votes
3
answers
3k
views
Need help with a vertical mount, male A USB connector
I need to figure out a way to get a Male A USB connector to vertically attach to a PCB. Ideally, we wouldn't use a surface mount right angle connector.
Any help would be greatly appreciated! Most of ...
- 41
0
votes
1
answer
131
views
Custom board cutoffs pcb
I have been playing with the board shape, im planning to send this to OSH spark for manufacturing, however i have doubts about if they can do cutoffs of the boards like this or any other possible form ...
- 1,547