Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.

Solder Charges

Views: 2970

I am looking for some tips of the trade with solder charges.... - Aug 07, 2023 by QA123  

To resolve this issue, we use stencils with a step in the l... - Aug 08, 2023 by dima  

Did you struggle with bridging? ... - Aug 08, 2023 by QA123  

What thickness did you go to and what aperture size did you ... - Aug 08, 2023 by QA123  

We use 7mil step 35mil diameter. Never got a bridges problem... - Aug 09, 2023 by dima  

thanks we will give it a try ... - Aug 09, 2023 by QA123  

For which connectors? We are using a Andon BGA connector and... - Aug 10, 2023 by leeg  

We are using a SAMTEC BGA connector. ... - Aug 10, 2023 by dima  


QA123

#89835

Solder Charges | 7 August, 2023

I am looking for some tips of the trade with solder charges.

I am using recommended reflow profile in the oven and I am seeing insufficient fill per IPC, and sometimes insufficient end joint.

I have tried dipping them in flux also.

What are you all doing to combat these things?

Is this just something inherent to this component?

reply »


dima

#89836

Solder Charges | 8 August, 2023

To resolve this issue, we use stencils with a step in the location of component with the solder charges.

reply »


QA123

#89839

Solder Charges | 8 August, 2023

Did you struggle with bridging?

reply »


QA123

#89840

Solder Charges | 8 August, 2023

What thickness did you go to and what aperture size did you use. I am at 5Mil now with 35mil dia aperture

reply »


dima

#89845

Solder Charges | 9 August, 2023

We use 7mil step 35mil diameter. Never got a bridges problem.

Attachments:

reply »


QA123

#89849

Solder Charges | 9 August, 2023

thanks we will give it a try

reply »


leeg

#89853

Solder Charges | 10 August, 2023

For which connectors? We are using a Andon BGA connector and are having a few issues with solderability and occasionaly bow / warp?

reply »


dima

#89854

Solder Charges | 10 August, 2023

We are using a SAMTEC BGA connector.

Attachments:

reply »

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