Electronics Forum: reverse homeplate (Page 1 of 1)

0402

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).

0402

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

Re: 0603 Tombstoning

Electronics Forum | Thu Feb 24 11:11:25 EST 2000 | Russ

I have seen this before, our problem was palladium termination of this component. We could not change suppliers so we use a "reverse homeplate" stencil design to put the majority of paste directly underneath the solder terminations of the component

Re: 0603 Tombstoning

Electronics Forum | Thu Feb 24 11:11:25 EST 2000 | Russ

I have seen this before, our problem was palladium termination of this component. We could not change suppliers so we use a "reverse homeplate" stencil design to put the majority of paste directly underneath the solder terminations of the component

solder balls

Electronics Forum | Mon Jul 16 09:04:00 EDT 2001 | Hussman

No argument here. But I've don't think I've ever seen solder balls on 0402s. Even when they're placed on narrow G dimension pads, where there is little toe fillet, I've never seen a solder ball. But your idea of reversed homeplates would work grea

0402 aperture design lf

Electronics Forum | Thu Apr 12 10:01:43 EDT 2007 | realchunks

Hi aj, Pete is right, there are several variables that can affect your quality when it comes to stencil design. A good idea is to have a stencil made with various designs incorporated into it. A lot of engineers like the reverse homeplate design.

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