Category:PCB PCB Assembly Service

Group Administrators: 1 | Group Member: 383 | Group Threads: 383

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.;

Search Results: 383 Threads,39 Pages Post A Thread
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New SMT Equipment

The company I work for is looking to install a new SMT line. We currently use Assembleon equipment but we are also looking at Sony. I have not seen any information on how well Sony machines perform. I...(See More)

2B labs
2017/2/26 18:07:31
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324 views

prevent COB pad from contamination

Hi, During SMT process, i found that solder splash on the gold pad. The distance between the COB pad with component pad is about 1.25mm. My question is what material can used to cover the COB pa...(See More)

akira
2017/2/25 23:16:14
1 comments
259 views

Reflow Profile Design

Hi, This is a little embarrassing asking this question, as I think I am profiling our oven incorrectly. I have been using the profile based on the solder paste specification, however we ha...(See More)

Pierre Mainardi
2017/2/25 22:58:06
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322 views

what may be causing reflow issues with QFN?

QFN assembled on a PCB indicates paramteric fails when tested. When the QFN on PCB is reflowed a second time, it recovers and passes testing. Visual, X-ray inspection revealed no anomalies. Cross-sect...(See More)

yesyes
2017/2/25 22:54:11
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313 views

To Manage SMT Attrition

Purchasing extra components to keep surface mount technology (SMT) production lines running is the main focus of attrition. During SMT manufacturing some components will be lost. Attrition ensures tha...(See More)

Bartlomiej Hydrynski
2017/2/25 16:14:09
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228 views

in -line machine inspecting the solder paste after printing

Hello. smtguys Is there any body who has or know the in -line machine inspecting the solder paste after printing. what i only know is the centry 2000 made by the CYBER OPTICS. anything else ? for insp...(See More)

Michele Baldin
2017/2/25 7:48:19
1 comments
270 views

Deionized water rinsing in PCBAs

Our CEM running No clean process on our PCBAs Should we verify that he is using the Deionized water rinsing or is it a default in the process ?(See More)

Elhanafy
2017/2/25 7:47:12
1 comments
246 views

a format or example of a complete justifictation

I have been asked to do a justification for a piece of equipment. Can anyone e-mail a format or example of a complete justifictation so I don't have to recreate the wheel. Thanks(See More)

drka
2017/2/25 7:46:32
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214 views

climatic controlled assembly area

Hi, We have a climatic controlled assembly area, with a constant temp of 22 deg C and a relative humidity of 40 - 50 %. What I would like to ask is how should I approach a situation when the hum...(See More)

Ibrahim ARI
2017/2/25 7:16:51
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290 views

SMT components on boths sides as well as thru-hole parts

Is there a cost effective way to do assembly of boards with SMT components on boths sides as well as thru-hole parts ?? (Is there a solution other than hand-soldering the thru-hole parts after S...(See More)

Agustin
2017/2/25 7:14:36