Category:PCB PCB Assembly Service
In assembly the bare board is populated with electronic components, called a "printed circuit board assembly" (PCBA). In through-hole technology, the component leads are inserted in holes surrounded by conductive pads; In surface-mount technology (SMT), the component is placed on the PCB so that the pins line up with the conductive pads or lands on the surfaces of the PCB.
We're looking at a new assembly that will require an SMT heat sink. Can anyone recommend potential vendors for this part? It is new to us, so we're having to start from scratch. Thanks(view more)
Hi Everyone What lubricants do your maintenance people use for the chains in your Reflow ovens? The manuals for our ovens have one recommendation - but I am always open to other people's e...(view more)
We hare having an issue with our chip shooters misplacing or not placing parts all together. We have traced it back to our adhesive machine. We are using both single and double dot nozzles. I feel tha...(view more)
In a new design project, I would like to attach electronic components to a board using either sonic or resistance spot welding. Anyone out there, who could provide me with actual parameters, like freq...(view more)
Hello folks, Just wondering if there is a guideline out there that specifies how many temp/humidity sensors are needed in a certain unit area size in PCBA assembly production, especially for the...(view more)
Hi, Has anyone who's using vapor phase process able to help me troubleshoot tombstoning? I raed about uneven forces during reflow due to misalignment, pad design, paste volume deposition unevenn...(view more)
I want feedback from people that currently have these machines or that I have worked with them in recent years. No Quad reps please, although your opinion may be valuable it may be bias to Quad. ...(view more)
Hello all, We have came into this problem that I wanted to get everyone's input on from the SMTNET. We have roughly four pieces of equipment from a major manufacturer that we purchased from vari...(view more)
I need some advice about a problem that happened in a SMT LED: The failure symphoms of this SMT LEDs is that the LED body itself seemed to be functional, but when soldering on the products, it s...(view more)
Anyone use glass filled nylon connectors utilising the intrusive reflow techique (pin in paste). We are having probe with them becoming brittle after reflow- apparently due to moisture. We are also se...(view more)