Category:PCB Assembly PCB Assembly Rule

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Join in this group and you will know many rules of PCB Assembly and solve the problems when in PCB assembly.

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Search Results: 66 Threads,7 Pages
4 answers
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Calculate SMD movement during reflow

Does the possibility exist where one can calculate the movement of a SMT component during reflow given component and pad geometries? Thanks in advance. (See More)

Charles
2017-02-27 06:49:11
nopphadon
2017-03-01 06:49:11
5 answers
197 views

mixed technology criteria.

Hi, We are using mixed technology in our PCBA. Would like to know whether there is any criteria governing/guiding the use of mixed technology in such aspects as: 1. Some SMDs cannot be used in s... (See More)

mmaggi
2017-02-27 05:53:58
Calvin
2017-03-01 05:53:58
5 answers
195 views

Humidity Of Assembly Area

We manufacture opto-electronics, small ccd cameras for pipeline inspection. I was wondering if anyone knew of a standard value for the recommended humidity of an assembly environment for optos in part... (See More)

tomas ageitos
2017-02-27 05:47:54
Bard
2017-03-01 05:47:54
5 answers
162 views

SMT Chip terminal lifted

Can anyone there please tell me what can cause the SMT chip terminal lifted? This happen quite often and I can't find the root cause for this problem. Does it cause by material/Placement? (See More)

Barry
2017-02-27 05:32:26
Bernard REMOND
2017-03-01 05:32:26
5 answers
183 views

SMT Placment Reliability

There is a hypotheses floating here that the more surface mount components on a PCB, the percent of misplacement goes up. I'm on the receiving end of this, and looking for backup, or argument for the ... (See More)

marcolastri
2017-02-27 05:11:40
Bernard REMOND
2017-03-01 05:11:40
5 answers
134 views

To apply DOE in SMT process

Hi, everyone, I'm an new engineer and in charge of SMT process. Now I want to apply DOE to printing process. some questions to ask you guys. 1. how many replications do i need in each run (L8) ? 2. af... (See More)

linhpost
2017-02-27 05:03:13
osman
2017-03-01 05:03:13
5 answers
171 views

SMT Classes

I have a need to send some Engineers to intro SMT classes. I have found two avenues: 1)ACI (which is to high level!) 2)Cookson CPS which is more in line with intro to SMT process. Are there othe... (See More)

drka
2017-02-27 04:07:06
Adrian Wellings
2017-03-01 04:07:06
4 answers
177 views

SMT p&p new line

Goodday,my name is Fabio and i'm smt tecnician manager of an italian company i must buy a NEW line smt. My end choose is: europlacer(Vitesse) or Mydata(My9+My9) or Siemens(CS+CF). if it's possible i w... (See More)

Harris.shallcross
2017-02-27 00:32:06
Worge
2017-03-01 00:32:06
4 answers
218 views

Starting an SMT line

We are investigating equipment for a new SMT line. We are an OEM doing thru hole assembly and now must decide whether to do SM assembly in house or sub-contract out. We are a low volume/high board mix... (See More)

Earl Swope
2017-02-26 15:39:44
vintageamplification
2017-02-28 15:39:44
3 answers
58 views

SMT tape boards!

We are experinecing adhesives left on the boards after running taped boards for placement verification on NPI. We've been using 3M double sided (333) tape for over 15 years. Any other suggestions on a... (See More)

Josh
2017-02-26 10:39:22
Toni
2017-02-28 10:39:22
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Search Results: 66 Threads,7 Pages