In a message dated 05/19/2000 12:46:41 PM Central Daylight Time, 
[log in to unmask] writes:

<< Well Chuck,
 since YOU mentioned it, what is Green Tape™?
 Tim Reeves
 ECD >>

Hi Tim!

Here's a paste from Duponts web page:

Green Tape™ material systems are centered around the efficient way of making 
multilayers by replacing the dielectric screen printable paste with 
dielectric foils. A system of conductors has been developed to match the 
process and the tape dielectric.
 
Green Tape™ systems build multilayers using a cost-effective parallel process 
instead of the sequential process used in conventional thick film hybrids. 

The module is made by cutting tape foil to a standard substrate size, 
punching the interconnecting vias, filling the vias with thick film paste, 
and patterning the interconnect lines on the tape. The operation is repeated 
for as many layers as the design requires. The separate layers of the module 
are then collated, stacked, and laminated, becoming the "green" multilayer. 
Once the multilayer is fired and cut to size, the top layer is completed by 
using resistors, and gold and silver bearing conductors.

Go to: http://www.dupont.com/mcm/product/tape.html to find out more.

-Steve Gregory- 

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