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Subject:	Re: [geda-user] [pcb] poll: burried/blind vias vs. pcb and pcb-rnd
	(How ?)
To:	geda-user AT delorie DOT com
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From:	"M. J. Everitt (m DOT j DOT everitt AT iee DOT org) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Date:	Tue, 26 Jan 2016 18:15:21 +0000
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On 26/01/16 18:04, DJ Delorie wrote:
>> In this day and age to say blind/buried vias are not needed is ridiculous.
>> The fact is ANY design that requires even one FPGA, custom ASIC or
>> medium to large BGA needs blind/buried vias.
>>
>> This is factual and is easy vetted.
> If you can afford a custom ASIC, you can afford a top-end EDA package,
> and a FAB that supports high-end features.  Frankly, PCB is not a
> high-end package and custom ASIC users are not our target audience.
>
> I can't afford any of that tech.  Heck, I can barely afford 4-layer
> boards with 6/6 rules.  There's a huge community of designers that
> can't (or won't) afford high tech features in their boards.
>
> So you can say "this is factual" but it's not.  It may be a
> requirement for a subset of our potential user base, but it's not
> ridiculous to assume that many people just aren't going to use them.
> Until we decide to support that tech, we're simply targetting the
> "many people" who don't need them.
DJ . don't rule a potential set of users out because of your limited
facilities and personal experience. There are some that are trapped
between the 'big' expensive EDA software and tooling, but have access to
cheap chinese manufacture who can do up to 8 layers inexpensively on
small runs (I can give you a handful of vendors). These are bona fide
potential users of gEDA and whilst there may not be a huge coding effort
available .. it is a potential that could be tapped in the future.

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