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LED Light for You - Osram Certified Partner		   Design Guidelines

Fujipoly electronic packaging components provide the finest performance available. To assure expected long-term results, refer to the following simple guidelines for each product area.

  Glossary of Connector Terminology
  SARCON Thermal Interface Materials
  ZEBRA "W" Connectors
  ZEBRA Elastomeric Connectors


GLOSSARY OF CONNECTOR TERMINOLOGY

    ASPECT RATIO (AR)
    Ratio of ZEBRA connector height to width.  (Aspect ratio of 1.5 and higher is recommended to minimize the amount of force required to deflect the ZEBRA connector.)

    BEZEL
    Positioning device designed to surround the LCD edges while applying force to the ZEBRA connector.  Usually the decorative portion of the connector package.  Plastic or metal cover placed over the LCD.


    BRIDGE
    Rib section on a ZEBRA connector holder serving to reinforce the holder as well as minimize the length of individual ZEBRA connection spans.



    COMPRESSION SET
    Amount by which a compressed ZEBRA connector will not recover to its original height when compression is removed within the prescribed deflection limits. (typical maximum of 25%)



    CONNECTOR PITCH
    Center-to-center measurement of conductive layers.

    CONTACT DENSITY
    Number of conductive layers per inch.

    DEFLECTION
    Difference in original height versus compressed height of connector.

    GAP
    Space on a PC board or LCD which does not contain contact pads.

    HOLDER/RETAINER
    Positioning device used to contain the ZEBRA connector to assure proper alignment between two mating surfaces.

    LCD PITCH AND/OR PC BOARD PITCH
    Centerline-to-centerline distance between contact pads.

    LIP WIDTH
    Distance from outside edge of front glass to edge of back glass.

    PAD LENGTH
    Distance measured end-to-end of contact pad (CL).

    PAD MATERIALS
    LCD contact pads are normally indium tin oxide.  PC board contact pads may be gold, carbon-coated or solder-coated.  Plating methods can result in significant variations in contact pad thickness, but should be kept as flat as possible.

    PAD WIDTH
    Distance measured edge-to-edge of contact pad (CW).

    REGISTRATION
    Vertical alignment of contact pads between two mating surfaces.

    SEPARATION
    Distance between two mating surfaces.

    STRESS RELAXATION
    The function which relates to the loss of back stress of the compressed connector over time.  Expressed as a percent of original stress.

    TOLERANCE STACK-UP
    Minimum and maximum dimensions of separation between LCD contacts and PC board contacts as determined by consideration of tolerance variations in flatness and parallelism of components.

    
   
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