Category:PCB PCB Manufacturing

Group Administrators: 0 | Group Member: 267 | Group Threads: 428

PCB manufacturing consists of many steps, such as PCB CAM, Panelization, Copper patterning, etc. This group is mainly talked about the problems during PCB manufacturing!

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Search Results: 428 Threads,43 Pages
4 answers
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Quoting

I have inherited a spreadsheet used to quote labor for assembling pc boards. There are no instructions (of course) on how to use it and it seems to be lacking in several areas. So, I was wondering if ... (See More)

Adair
2017-02-27 22:29:10
info
2017-03-01 22:29:10
4 answers
203 views

support pins for double sided boards

Hi guys, I want to improve the set up of our printing machine(EKRA) especially on a 0.5mm thickness double sided boards.I find the support pins very time consuming,any advice? thanks. (See More)

paolo.costanzi
2017-02-27 22:16:22
alvaro.anton
2017-03-01 22:16:22
5 answers
241 views

PPS caps degrading value

we have recently been having trouble with our PPS capacitors on a couple of our boards. these boards are RoHs and the Parts are RoHs compliant. these boards first run through our reflow then a batch w... (See More)

saulius.devyzis
2017-02-27 21:51:04
quintendesmyter
2017-03-01 21:51:04
4 answers
205 views

Cleanliness: Cross Contamination of Flux

We've configured SMT and Wave lines such that each line can run either No-Clean and Water soluble process. As we are doing cleanliness study, an observation is there may be cross contamination when we... (See More)

selcukbircan
2017-02-27 21:41:02
Robin Moons
2017-03-01 21:41:02
4 answers
284 views

Checking reflow ovens

Is it common to check your reflow ovens proper operation with a separate system ? We check our ovens weekly with a DataPaq Surveyor. In 10 or so years of Data collection, I have never witnessed ... (See More)

Csaba Simon
2017-02-27 21:40:13
Luc Vercruysse
2017-03-01 21:40:13
4 answers
189 views

Materials Specifications for Thermal PCBs

When choosing materials, do you specify your thermal PCB needs? For instance, are you specifying temperature or are you selecting materials by brand name? (See More)

vampire
2017-02-27 19:19:55
john brooks
2017-03-01 19:19:55
4 answers
238 views

Aluminum and silica contamination

Hi All, I'm hoping there is a PCB expert or two hanging around. We're having some solderability issue on our boards. The finish is ENIG but it doesn't seem to be related to the finish process it... (See More)

OSCAR GOMEZ
2017-02-27 18:07:03
Spyros
2017-03-01 18:07:03
4 answers
194 views

Epoxy for printing

Hello, can anyone recommend a conductive epoxy for printing and 0402 cap attach? We have some short issues underneath the 0402 caps with our current epoxy. Any input is appreciated. Thanks a lot. (See More)

m.zandri
2017-02-27 17:25:59
Antonio Semeraro
2017-03-01 17:25:59
3 answers
270 views

Thickest internal copper layer?

What is the thickest internal copper layer we could get in a pcb? (See More)

a.spada
2017-02-27 17:01:20
Giampaolo Braga
2017-03-01 17:01:20
4 answers
334 views

Mixed Technology

Hi! Does anyone have experience from PCBs with mixed technology. Do you store the PCBs in nitrogen/dry air cabinets if you are not able to wave solder the PCBs within the same day. What considerations... (See More)

hakan kaynar
2017-02-27 12:15:40
fuentesg
2017-03-01 12:15:40
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Search Results: 428 Threads,43 Pages