PCB Manufacturing Group - Page 8

Group Administrators: 1 | Group Member: 320 | Group Threads: 440

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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4 comments

976 views

I need a QUAD QSP-2 Question answered

I would like to freeze feeders on a global basis. I am tired of table changeovers every time I run a different board. A good example is today I ran 1 board which went well. I wanted to run a board beh...(view more)

drka

2017/2/27 23:49:28

4 comments

801 views

some basic details of materials in pcb

i want to know about some basic details of materials in pcb such as CEM, FR1, FR2, FR3 and XPC.The use, advantages and also disadvantages(view more)

Alejandro Vitale

2017/2/27 23:25:19

3 comments

844 views

ENIG or Flash

Dear all, I'm having a friendly discussion with our chief manufacturing engineer. To our PCB suppliers we specify the use of "chemical gold", imo this means we use ENIG, Our boards are all...(view more)

Dana

2017/2/27 22:46:36

4 comments

731 views

Leadfree Trials

All, I would like to find out what trials everyone is carrying out when evaluating Leadfree Paste.(view more)

Barlow

2017/2/27 22:41:39

4 comments

757 views

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 ...(view more)

Adair

2017/2/27 22:29:10

4 comments

793 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.(view more)

paolo.costanzi

2017/2/27 22:16:22

5 comments

811 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...(view more)

saulius.devyzis

2017/2/27 21:51:04

4 comments

904 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...(view more)

selcukbircan

2017/2/27 21:41:02

4 comments

915 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 ...(view more)

Csaba Simon

2017/2/27 21:40:13

4 comments

827 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?(view more)

vampire

2017/2/27 19:19:55

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