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Author Topic: Dead bug society  (Read 1253 times)
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mare69
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« on: September 25, 2012, 10:37:45 22:37 »

Dead bug soldering is my favorite prototyping "technology". Usually I produce toner transfer PCB, but it's more fun, when circuit with 0.5mm pitch BGA made in my garage start working even without PCB.  Grin
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motox
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« Reply #1 on: September 25, 2012, 11:29:31 23:29 »

 Shocked nice work!!

My experience with this technology is little, but here is a picture of my first Li-ion battery charger:
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solutions
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« Reply #2 on: September 26, 2012, 01:10:42 01:10 »

That thing is scary.

2 layer boards are so cheap (qty 3 for $1.67/squinch/each), why bother, though?

Especially considering you are polluting the environment with your improperly disposed of chemicals in a home-etched setup.
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bbarney
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« Reply #3 on: September 26, 2012, 01:13:56 01:13 »

Kinda remind's me of the Borg Queen  Tongue
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optikon
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« Reply #4 on: September 26, 2012, 01:18:46 01:18 »

That thing is scary.

2 layer boards are so cheap (qty 3 for $1.67/squinch/each), why bother, though?

Especially considering you are polluting the environment with your improperly disposed of chemicals in a home-etched setup.

Only real men skywire BGA's.... totally crazy.

If the pitch of the BGA is too fine, you can't break all the signals out in just 2 layers. On designs I work on, this is the only reason some of my 6 layer boards end up as 8 layers.
In his case, a little TLC and some time can probably get em all out in 2.

http://pcdandf.com/cms/images/stories/mag/0708/0708ali3.jpg

Whos got 2 layer for $1.67 / square inch? I assume no mask, no silkscreen. I also assume probably some upfront tooling cost. That or one of those share a panel with other design kind of places.

« Last Edit: September 26, 2012, 01:27:54 01:27 by optikon » Logged

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solutions
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« Reply #5 on: September 26, 2012, 05:59:55 05:59 »

no tooling cost, masks, silkscreen, gold plated, even internal slots...in the "other than eagle" thread

http://www.sonsivri.to/forum/index.php?topic=47153.msg137419#msg137419

You probably would have noticed it if you weren't cross-eyed from your dead-Medusa (bugs only have two rows...)

 Tongue
« Last Edit: September 26, 2012, 06:03:41 06:03 by solutions » Logged
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