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Technology and Quality

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• Capability
  • CAD Data
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  • Holes, Pads & Clearances
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  • Surface Finishes
  • Edge Connectors & Key Pads
  • Profiling
  • Electrical Test
  • Controlled Impedance

Controlled Impedance

Types

• Surface microstrip
• Embedded microstrip
• Coated microstrip
• Symmetrical stripline
• Offset stripline

Impedance Tolerance = 10%

Design Criteria

When calculating impedance, the dielectric constant (ER) value will vary after bonding from that published by the material manufacturer. Also it is essential to ensure that gaps between tracks are large enough for track width changes to allow for etch back. Please call our technical department for information, calculations and builds for controlled impedance circuits.

Testing a Controlled Impedance Coupon

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• BE AWARE Chinese New Year Jan 2010
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Wharton Ind Estate,   Nat Lane,   Winsford,   Cheshire, CW7 3BS