Category:PCB Assembly PCB Assembly Service

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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.

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Search Results: 393 Threads,40 Pages
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What components should be avoided when choosing a lubricant to be used near SMT assemblies?

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... (See More)

Albert Basson
2017-03-01 02:13:48
Quincy
2017-03-03 02:13:48
1 answers
177 views

adhesive dispersion specifications

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... (See More)

Martin Banky
2017-03-01 02:13:29
Dennis
2017-03-03 02:13:29
1 answers
154 views

Component welding

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... (See More)

hisham.i
2017-03-01 02:07:48
Alex Alfonso
2017-03-03 02:07:48
1 answers
155 views

guideline specifies how many temp/humidity sensors

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... (See More)

tim
2017-03-01 02:04:12
John
2017-03-03 02:04:12
1 answers
176 views

help me troubleshoot tombstoning?

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... (See More)

mbetz
2017-03-01 02:01:43
alejandro.rostro
2017-03-03 02:01:43
1 answers
178 views

Good Points / Bad Points about Quad Machines

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. ... (See More)

cec021
2017-03-01 01:51:38
Borut Poljsak
2017-03-03 01:51:38
1 answers
184 views

Registration Fees for Automation Equipments

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... (See More)

frmendozat
2017-03-01 01:47:33
Ibrahim ARI
2017-03-03 01:47:33
1 answers
147 views

a problem that happened in a SMT LED

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... (See More)

Ronald Vester
2017-03-01 01:46:02
Kermit
2017-03-03 01:46:02
1 answers
156 views

Anyone use glass filled nylon connectors?

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... (See More)

azhar
2017-03-01 01:41:04
g.laliberte
2017-03-03 01:41:04
1 answers
154 views

site training program for 5-8 operators

Does anyone know of a company that will come in and do an on site training program for 5-8 operators and give the certificate at the end?? (See More)

Martin Banky
2017-03-01 01:40:07
sousmen
2017-03-03 01:40:07
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