X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:content-type;
	bh=T0C/q+JbRIns/+y+AOyr/LHrRbymvXBjBFthQ5MR8Dg=;
	b=gHbf/xf38Q0cckPyulZQ7NADKeMD/4grFLH5k6DYuPUHtqXOO2msqVmsGQoWiK1N/w
	oi78m2ZqL2V31w1APcbPxF5dftSvqIRzt6CYZnyPWr/x+6d660WBCUFD2EyJkN+CulIH
	1gg/hRxX+R6RUoqzV5mTTUVGAQ6GViFbPgIt8=
MIME-Version:	1.0
In-Reply-To:	<20111129210259.24C1E81F626D@turkos.aspodata.se>
References:	<CA+82U9J4GvssKrnRNOTTMuDc4zHy+PxeWb8OXeWP6NVHfoA0Nw AT mail DOT gmail DOT com>
	<1486241a-88b7-4c8d-8354-ded392eadf96 AT email DOT android DOT com>
	<CAA0yOM6e_raSs_3tBv_+1OTNj+cZdN91cJU3hKkeW90E23z4nA AT mail DOT gmail DOT com>
	<CA+82U9+CzLMdBvyyJxsYWR==BXWjWGrU+zWNXL+-g9tsh7uLbw AT mail DOT gmail DOT com>
	<CAA0yOM5ej1dMOOtcbYYRdc=7yW6hZj=cmpuypYt9c_X_k5NM7A AT mail DOT gmail DOT com>
	<CA+82U9+2pQBscOYsWBbLPtEpb1MyTEKe5dr8wzdJYJnFqCjWgw AT mail DOT gmail DOT com>
	<CAA0yOM5+uj6cHuxVsz18SPqd=ULC_-EbaUb0ffj14wkdj_dHiQ AT mail DOT gmail DOT com>
	<4EC9CE99 DOT 5040303 AT industromatic DOT com>
	<4ED27309 DOT 6030100 AT ecosensory DOT com>
	<20111127231842 DOT 3FD9B81F6262 AT turkos DOT aspodata DOT se>
	<4ED30BB2 DOT 8030301 AT ecosensory DOT com>
	<20111128075947 DOT F0D6681F6266 AT turkos DOT aspodata DOT se>
	<4ED36081 DOT 5080507 AT ecosensory DOT com>
	<CAOuGh8_6Bw9mpxyzrqcG7SzLBAmUCs9PbVHD4SOJx6VYenFfng AT mail DOT gmail DOT com>
	<20111129210259 DOT 24C1E81F626D AT turkos DOT aspodata DOT se>
Date:	Tue, 29 Nov 2011 20:26:13 -0500
Message-ID:	<CAPYb0EFxS8sJ6wNw6UP0FhMKkTwAk69D7CywO3NrQ0MbHMM37g@mail.gmail.com>
Subject:	Re: [geda-user] Re: I won't do BGA's
From:	Bob Paddock <bob DOT paddock AT gmail DOT com>
To:	geda-user AT delorie DOT com
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

>> Some parts, Accelerometers for example, leave you with few package options.

VTI does make one in a module package, 16 bit resolution, Automotive grade.
Most sensitive of any I ever tested.  I thought it was broken, until I
realized it was sensing each key I typed from a significant distance
away on the workbench.

> At 25um there was remains from all tested fluxes.
> At 50um water soluble and one of three "no-clean" fluxes left no traces
> At 75um no fluxes was left after washing
>
> The above is for PbSn.
>
> There is a reference to [3], which is said to show that with suitable
> layout one can get a stand-off distanse of 75-100um.

I'll add those references to my Get at the Library list, thank you for them.

I do wonder if those distances change for Lead Free?

- Raw text -