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February 1999

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Subject:
From:
Manfred Huschka <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 4 Feb 1999 01:50:30 -0600
Content-Type:
TEXT/PLAIN
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TEXT/PLAIN (81 lines)
If you don't get it to work, you can try Taconic's TLC-30 (DK 3.0), which is a 7628 glass fabric based PTFE
base material. Due to the heavy glass fabric (x/y dim stab) it is really suitable for mixed dielectric hybrid
multilayer. It is available in 20 mils thickness.

regards

Manfred Huschka
Taconic Advanced Dielectric Division

[log in to unmask]
http://www.taconic-add.com


--- On Wed, 3 Feb 1999 16:41:15 -0600  [log in to unmask] wrote:
I created several R/F designs using a combination of CLTE and GETEK last year. As Ron said,
the stuff be managed well in well managed pre lamination, lamination, and post lamination
phases. Delamination can be a serious issue, but is minimized by those having been down the
road. Another issue is cure. If not properly cured, you can take a pen knife and lightly pick
away at the crumbling surface and deeper as the powdery substance comes apart. This condition
usually is found in areas on/in the board exibiting "blisters" or really serious
delamination.

Not advertising, but the two shops successfully completing both test panels and production
boards were Multek and Praegetzer. I only tried a couple of other local Bay Area shops and
they didn't make the cut.

As Ron said, the "resin" system, for lack of better terminology, is made PTFE, and a ceramic
"frit" that, when coated/treated to the 106 glass style has a tendency to behave in a
difficult way. Arlon and Rogers, who developed the "resin" system, talk about the mixture as
chunky peanut butter being spread on a piece of glass fabric with hopes of making it stick.

Not matter the difficulties, it certainly is attractive from a Dk standpoint. 2.94 is getting
closer to air and, when successfully laminated, offers excellent dimensional properties.

Earl Moon

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---------------End of Original Message-----------------

--------------------------------------------------------
Name: Manfred Huschka
Taconic Advanced Dielectric Division
Lynn Industrial Park
Mullingar, Co. Westmeath
Republic of Ireland
Office: PF 1275, D-51676 Wipperfuerth, Germany
        Tel.: +49 2267 888004
        Fax:  +49 2267 888005
E-mail: Manfred Huschka <[log in to unmask]>
Web: http://www.taconic-add.com
Date: 02/04/99
Time: 07:37:17

This message was sent by Z-Mail Pro - from NetManage
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