All Questions
Tagged with manufacturing pcb
63
questions
1
vote
0
answers
47
views
How to Design method to Program & Calibrate a Panel of PCBs
I'm designing a sensor-package PCB which needs to be programmed and calibrated while still in a panel of 10.
I'd like to avoid a large bed-of-nails type setup for this step so that the panel can ...
- 11
4
votes
6
answers
3k
views
Is it hard to do 2 sided SMD PCB in oven?
As far as I am aware, and please correct me. If we have a 2-sided PCB with SMD components on the top and also bottom, first we shall put components on the top side and solder them and then on the ...
- 2,103
0
votes
1
answer
78
views
How do you make custom THT (through-hole) connectors?
I have a project that requires a connector that is no longer manufactured which would interface with an old device. For prototyping, I have been salvaging this connector from old peripherals that used ...
- 23
10
votes
1
answer
3k
views
Which is better - components on both sides or components on one side of the PCB?
I am working on a PCB design. 50k PCBs will be produced.
SMD components: 100
Through-hole components: 25
I need to minimize PCB size. There are no high-speed signals or sensitive signals in the ...
- 362
0
votes
0
answers
47
views
Creating random PCB ID via manufacturing process
I often purchase prototype PCBAs on the order of five to twenty pieces and need to uniquely identify them sans software. I usually just whip out a permanent marker and label ...
- 2,516
1
vote
4
answers
4k
views
Soldering one PCB to another with 90 degrees angle
I want two PCB's to be soldered with each other in 90-degrees style.
I think that the base PCB should have a slot with the width equals to the top board thickness. The top board should have a flange ...
- 3,012
24
votes
6
answers
5k
views
Writable area on a PCB
I would like to create an area on my PCB where you can write on with a pen.
Is this possible, and if so how should I do it?
- 393
1
vote
2
answers
696
views
Reed Switch Failure Modes
I've been playing with these through hole reed switches: MDSR-4-12-23. It has been my experience so far that you have to be very careful in handling them, including when bending the leads to 90 degree ...
- 22.8k
8
votes
3
answers
4k
views
What is this small unconnected solder blob on this PCB?
There's a small solder blob in the middle of this one-sided PCB (a switch-mode power supply), surrounded by unmasked board. The blob is 1.5mm in diameter, and the non-masked area is 4mm in diameter. ...
- 486
5
votes
2
answers
2k
views
Usefull 0402 and 0603 solderbridge footprints compatible with machine manufacturing?
I am currently in process of my eagle library cleanup, and came up with the idea to create a footprint similar to the one from nucleo boards. Those pads are meant to be easily bridged by just solder ...
- 81
-1
votes
1
answer
1k
views
In Altium Why My Square slot is shown round in Gerber?
In Altium I have created a square slot in PCB then I create the gerber files.
In CAM, file's square slot is shown as round shape.
Can anyone explain why?
Also I have enabled the G85 command.
- 69
0
votes
1
answer
78
views
Any script for detecting PCB size or the trace width/spacing
everytime I place an order on PCB manufacturers (such as PCBWay), I need to fill out the related parameters of my boards - the width, the length, the trace , holes and etc. Has anyone tried to work ...
- 1
2
votes
2
answers
195
views
Will PCB assemblers solder wires to the board?
When preparing a medium run prototype, are there any manufacturers out there who will solder wires to you if you ask? For example, I have a device with 6 sensor pins. I'm hoping that a manufacturer, ...
- 493
0
votes
1
answer
341
views
STM32F103xxxx VFQFPN 36 pin package thermal pad, isolated or tied to ground?
Currently designing a PCB based on the STM32F103. The package is a VFQFPN 36 pin package, which also has a large thermal pad. The datasheet for this part does not appear to indicate a pin number or ...
- 690
14
votes
2
answers
6k
views
Mounting components on both sides of a PCB
I'm designing a PCB with a microcontroller ,CAN transceiver, sensor (I2C) and linear regulator. I want to make the PCB as small as possible, so my thoughts were to use both sides of a two layer stack ...
- 690