Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 29 Aug 2001 11:55:49 -0400 |
Content-Type: | text/plain |
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Steve:
I was reluctant to slam them on line, but Ablestik is the problem.
Price increases like 3x or more.
Thanks.
-Joe
> ----------
> From: Stephen R. Gregory[SMTP:[log in to unmask]]
> Reply To: TechNet E-Mail Forum.
> Sent: Tuesday, August 28, 2001 10:32 PM
> To: [log in to unmask]
> Subject: Re: [TN] Sheet Adhesive Suppliers
>
> Hi Joseph!
>
> We build assemblies that use adhesive preforms for just the reasons you've
>
> stated, and process them exactly like you do...
>
> The vendor is AbleStik at: http://www.ablestik.com/
>
> I hope this is not the company that you're talking about that's raised
> their
> prices so much...
>
> This preform that we use bonds two assemblies to a aluminum heatsink, one
> to
> each side, and this is the adhesive pre-form that is called out by our
> customer...we can't use anything else...sounds like a change of scope if
> the
> prices have increased a bunch!!!
>
> -Steve Gregory-
>
>
>
>
> Our supplier for epoxy sheet adhesives has significantly increased
> prices, and I'd like to look at alternative sources.
>
> We use this stuff for bonding ladder-style aluminum heatsinks to
> PWB's. The types that we use are either glass cloth or Kapton
> film covered with epoxy, total thickness from .004" to .009". We
> cut material on a programmable x-y machine that looks a lot like
> a plotter, but with a blade instead of a pen. Cure is with heat and
>
> pressure, either in a fixture and oven, or with a vacuum bag and
> platen press.
>
> We like dry film better than screen printing or dispensing liquid
> adhesive because it's a lot less messy, bondline thickness is very
> repeatable, material doesn't squeeze out when fixtured, and there
> is no smear when aligning the heatsink with the board.
>
> Anyone use Arlon materials for something like this? Other sources?
>
>
>
>
>
>
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