Re: [SI-LIST] : Decoupling capacitors (again!)

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From: Henry Ott (hott@idt.net)
Date: Fri Aug 18 2000 - 13:14:44 PDT


Larry:

Your comments are correct about what is special about the Zycon 2-mil
laminate.

Although Hadco (Zycon) has patented the two-mil thick laminate that they
call ZBC-2000, it is available from many sources. Zycon refers to this
this technology as "Buried Capacitance."

The attached pdf file lists the printed circuit board fabricators that
are licensed to Zycon to manufacture boards using this technology. As
of 1997, the date of my list, there were 24 printed circuit board
fabricators licensed to Zycon to manufacture boards using this
technology, and six fabricators licensed to produce the special ZBC-2000
laminate.

By the way, the technology works very well for decoupling above about 70
MHz.

Hope that the above is helpful to you all.

I am off to the the EMC Symposium in Washington, DC now.

Henry Ott
Henry Ott Consultants
(973) 992-1793
www.hottconsultants.com

MikonCons@aol.com wrote:
>
> Larry:
>
> On the contrary, there are several things "special"
>about the Zycon/Hadco processes (note the plural, it does
>matter) that makes it not only work, but work reliably.
>I'm drawing on my relationship (and my memory) with Zycon
>that goes back to 1989-1993 for the following; therefore,
>don't shoot me if there are some minor misstatements.

----OVERSIZE ATTACHMENT "Zicon-BC.PDF" DELETED BY SYSTEM----

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