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Well, why would you want phenolic then? Some sort of electric properties maybe? Or maybe nostalgia :-)
[...]-- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:
Probably they meant alumina, a ceramic. Did many designs with it.
-- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
One possible reason is odd-shaped boards. Paper boards are easier to tool and punch out.
http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:
Yep. Did many products at Dickson Electronics on alumina substrates. Back before microprocessors, GM, and others, did huge logic collections on 0.125" alumina substrates... so strong you could drive nails with them ;-)
Best alumina provider? Coors ;-) ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
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In wine there is wisdom,
In beer there is freedom,
In water there is bacteria
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http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:
I did not say I wanted it it. I said I had just completed a PCB that turned out single sided and my local PCB manufacturer said SRBP is no longer used. All I asked was if it were still available.
Cheers
Ian
And smells like old electronics when you do! 8-)
Tim
-- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms
Loverrly!!!
Ian
...and you're going to need six-digit volumes to pay for the tooling to do the punching.
http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:
Did they clean it out of the bottom of their brewing vats?
[snip]
Nope.
Coors, in their normal course of the beer business, needs very fine filters.
The best filters are made of Alumina.
Clear back further than I can remember (before 1970 when I first bought Alumina from them) they decided to make their own Alumina.
As an aside they discovered they could sell the stuff to the electronics industry as well ;-) ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
In wine there is wisdom,
In beer there is freedom,
In water there is bacteria
- Benjamin Franklin
I just thought that their beer tasted like Al. No one would make anything like that on purpose.
y
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to
Not really, we did 5000 3"x1" boards. But we would not do any less.
http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:
Nah, aluminum clad has been really popular for the past few years in commercial designs such as automotive and LED lighting (the Luxeon Star and all the clones use such a substrate). Originally it was just single-sided SMT-only, but more versatile variations are coming on line.
Of course the advantage is that you can get the heat out more easily.
Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
That's smart. I lost count how often I tried to convince folks in sales in the medical industry to sell their stuff to industry as well. The milliseconds it's even slightly off the beaten track they usually won't even consider it. Lots of money is being left on the table.
-- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
It makes no sense. At small qties NRE and such totally swamp the materials costs. So prototype shops generally don't offer phenolic.
At large qties it's no problem to get phenolic.
-- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
I've done RF stuff up to a couple hundred MHz on phenolic. Others were more brazen and went to almost a GHz.
-- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
Must have been a trivial board, something simple enough for even Slowman to understand.
We're always looking for new markets for current products. We've even had medical companies pounding on the door, but so far haven't had the people to support them.
I don't believe that. It is a very competitive market and FR-2 is half the material cost of FR-4.
Cheers
Ian
I would most certainly expect to pay at least as much, most likely more or considerably more, if I specified a cheaper material (from a prototype house).
The point isn't that it's a few pennies cheaper on a board or two, it's that it is different from what most of their customers are happy with, and will likely incur much higher costs for them all the way through their processes.
Typically epoxy-glass boards are priced per square inch. For phenolic boards we talk about square meters...
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