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| Over-Molded
Cover Seals Shield PCMCIA Card |
Customer
Need:
A new product design from a wireless modem manufacturer required shielded
compartment isolation of RF and logic components on the PCB inside
a PCMCIA format housing. The thin metal covers required a very low
closure force to prevent excessive deflection. |
Traditional
Shielding Solutions:
The customer originally considered a metal spring finger gasket configuration
requiring several gasket pieces around the PCB perimeter. Soldered
metal shields were used to isolate the RF and logic components. |
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Chomerics
Solution:
Chomerics proposed that a low closure force conductive elastomer gasket
be molded onto both sides of the metal PC card housing. The overmolding
process also provided compartmentalization and isolation of the board
components. The gaskets were molded directly onto both the stainless
steel and plastic perimeter internal surfaces of the PCMCIA housing. |
Advantages :
This integrated approach simplified the EMI shielding solution and
offered the following benefits:
• Reduced overall assembly cost.
• Combined multiple gaskets and shields into one integral assembly.
• Eliminated soldering operation required by individual metal
can shields.
• Minimized deflection of thin stainless steel housing. |
For more information,
see Chomerics'
Over-Molded Cover Seals
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