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January 2013

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Subject:
Glue and Wave Solder 0402 Resistors?
From:
"Richard D. Krug" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Richard D. Krug
Date:
Thu, 31 Jan 2013 16:35:04 -0500
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We've just run across a customer's redesign of a PWB adding 0402 resistors.  The product has been built for years with a glue and wave process for 0603's to 1210's to IPC-A-610, class 3.  

I don't think we can reliably dispense adhesive between pads this close.  
Printing adhesive may be an option, but the stencil thickness may limit volume applied for the larger parts.  
Finally, we may get solder bridging with 0402's in the wave.  

Does anyone have experience with a glue and wave process on 0402's?  

Dick Krug, CSSBB, CSMTPE
Senior Process Engineer
Sparton Complex Systems
30167 Power Line Road
Brooksville, FL  34602-8299
p (352) 540-4012  (Internal Ext. 2012)
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