GS8000 Datasheet, PDF (1/4 Pages) Gennum Corporation – DVI / HDMI Extender

GORE® EMI Shielding
MATERIALS
GS8000 SERIES — Gaskets
and Grounding Pads
Increase package design flexibility while maintaining
electrical integrity
The GS8000 Series of GORE^® EMI Shielding Materials improves
package design flexibility without compromising the electrical
performance of the device. These highly compressible materials
are specifically engineered to maintain consistent conductivity
through a wide working range (see Figure 1 and Figure 2). With
Gore’s strong technology focus in materials, the GS8000 Series
was developed with a unique conductive foam. The soft conductive-
foam construction accommodates surface variations in covers and
printed circuit boards, alleviating the need to specify very tight
tolerances. This soft construction also makes the GS8000 Series
compatible with plastic housings and snap fasteners. This material
maintains excellent shielding performance in a trace width as
narrow as 1 mm, providing comparable performance to other EMI
shielding materials that are 3 times the width. With the lower
compression or closure force, fewer fasteners are needed.
Table 1: Environmental and Mechanical Properties
Property
Temperature range
RoHS Status (lead, cadmium,
hexavalent chromium, mercury, bromine)
Flammability in accordance with UL 94
horizontal burn method
Halogen levels (measured per BS EN 14582:2007)
Chlorine
Bromine
Fluorine
Iodine
Typical working range (for grounding pads)

Typical working range (for EMI gaskets)

Typical pressure to recommended
compression stop (RCS)
Value
- 45°C to 85°C
Pass
Pass
< 50 ppm
< 50 ppm
< 50 ppm
< 50 ppm
0.15 mm to 2.2 mm
( 0.006" to 0.087")
0.15 mm to 1.4 mm
( 0.006" to 0.055")
20 to 50 psi
Benefits of GORE^® EMI Shielding
Materials — GS8000 Series
•• Unsurpassed shielding effectiveness and minimal DC
resistance with low compressive force and broad range
of tolerance take-up
•• Reliable electrical performance over wide range of gap
distances from soft foam construction
•• Effective shielding performance in trace widths as
narrow as 1 mm
•• Improved design flexibility because of low closure force
Available as grounding pads and precision die-cut parts that
enable precise, high-volume assembly, the GS8000 Series of
GORE^® EMI Shielding Materials provide maximum cavity-to-cavity
EMI protection in a smaller size for more design flexibility.
Available as custom die-cut gaskets, strip gaskets, and grounding pads
Typical Applications
• Portable electronic devices, mobile phones, and GPS
• Portable computers
• Hand-held field testing equipment
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