Electronics Forum: bare+board (Page 5 of 52)

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Fri Dec 06 10:16:57 EST 2002 | davef

Bare board cleanliness is still primarily measured by resistivity of solvent extract (ROSE) using instruments such as Omegameters and Zero Ions. What is considered as "acceptable" cleanliness varies between specification and from company to company.

8 MIL VIAS OPENING DURING THE ASSEMBLY PROCESS

Electronics Forum | Fri Dec 13 12:56:57 EST 2002 | kmcneeley

I've seen this type of problem before. You need to get on your bare board vendors. It's a process problem for them. When you add the heat in reflow or wave solder the vias open. I'd get the vendor involved and reject the bare boards. There is still a

Best/Common Practice in Blank PCB QC

Electronics Forum | Tue Feb 25 14:42:28 EST 2003 | MA/NY DDave

Hi UNCLE!!! UNCLE!!! You know maybe I do remember this term, yet it is so long ago it doesn't ring a clear bell. From the stuff you passed over it had to come from the electrical technicians and engineers. Bare Boards was a more common term in m

Dispensible Conductor Material for Bare Board Rework

Electronics Forum | Mon Jan 22 11:50:07 EST 2007 | BWET

Can anyone recommend a material which can be used an a bare board: 1. Dispensed via a syringe 2. Mimmic the electrical characteristics of a trace 3. Be processed such that they do not reflow with the solder interconnect 4. Be processed such that the

Fuji Bare Board Loader PARTS

Electronics Forum | Fri Jan 18 07:01:41 EST 2008 | cyber_wolf

Hi, The solenoid that sits on top of the vacuum generator on my Fuji bare board loader is croaking slowly. Fuji will only sell me the entire generator assy. which cost more than I paid for the loader. The only markings on the solenoid are DC24V 540

Bad wetting after reflow

Electronics Forum | Fri Apr 09 15:00:04 EDT 2010 | davef

So for your SMT1/SMT2/PTH boards, you have poor solderability during SMT2. [Even if you have no SMT2 and only ST1/PTH, our answer is the same.] We assume this occurs on one board part number only. We guess that your bare boards have insufficient gol

ASYS LB03 Bare board loader

Electronics Forum | Mon Apr 11 13:11:30 EDT 2016 | gbkellyk

Hi, I hope someone is able help me I have just purchased a used ASYS LSB03 bare board loader and when I have switched the unit on the display reads MODUL 02 OFF also the control panel is frozen and does not respond to any of the buttons when pressed.

Solder Paste Volume measure in SPI

Electronics Forum | Wed Apr 11 09:51:26 EDT 2018 | emeto

Diego, the first question you have to answer is "Is the paste volume too much in real?" How does your paste look? To check that, I would say you measure bare board with your SPI and see if your SMT pads show you zero, or may be not? If your value fo

baking PWB standard??

Electronics Forum | Tue Aug 26 03:48:44 EDT 2008 | eyalg

Does anyone know if the IPC 610 standard call for baking bare boards (PWB) prior assembly? Note: I am talking about bare boars only and NOT plastic packages components, Regards. Eyal Green

Automatic Inspection Equipment

Electronics Forum | Fri May 30 09:18:41 EDT 2003 | swagner

MVT? When you feel your program is complete run a bare board through the system and please post the results of the inspection.


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