Electronics Forum: 0402 (Page 1 of 112)

Fuji CP feeder calibration

Electronics Forum | Tue Dec 05 13:21:47 EST 2006 | cyber_wolf

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Electronics Forum | Tue Jun 07 14:21:34 EDT 2005 | glenda

what is the max and min spacing between 0402. What is the rule of thumb?

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Electronics Forum | Tue Jun 07 15:00:10 EDT 2005 | glenda

what about spacing between pads center to center on 0402.

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Electronics Forum | Tue Jun 07 16:25:29 EDT 2005 | davef

We use a 0.012 inch gap betweem 0402 pads.

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Electronics Forum | Thu May 29 16:37:57 EDT 2008 | aj

10% reduction on 5 thou. Gap between pads is also critical with 0402's.

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Electronics Forum | Thu May 29 14:35:37 EDT 2008 | rdmundo

Gents, We've been using a round 1:1 aperture for a 5 mils thickness on our stencil design on 0402 and recently, IPC guidelines recommend oblong, homeplate or reverse homeplate. I believed the PCB pad for 0402's area within the recommended size/dimen

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Electronics Forum | Thu May 29 17:19:51 EDT 2008 | dyoungquist

On 0402s we use 20x25 mil pads with a 15 mil gap between the pads on the pcb with ENIG finish, 5 mil stencil with a 1:1 aperture (20x25 mil) and SAC305 lead free solder paste. We very rarely see any tombstoning on 0402s using this setup.

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Electronics Forum | Thu May 29 15:00:49 EDT 2008 | slthomas

We've found that reverse homeplate reduces tombstoning significantly for us on 0603 and 0402 (the latter of which we hardly ever see).

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Electronics Forum | Thu Mar 03 19:10:44 EST 2011 | fordf1502004

We are using Universal's Hsc for our production. the problem we are having is we are placing 0402 with a 8mm feeder with a pitch of 2, while running production, the feeder continues to advance with a pitch of 4. anyone have an idea as to why. the com

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Electronics Forum | Tue Jun 07 19:24:44 EDT 2005 | russ

We use a .010" - .012" gap with .020" square pads.

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