TGA4501-EPU Datasheet, PDF (9/9 Pages) TriQuint Semiconductor – 28-31 GHz Ka Band HPA

Advanced Product Information
December 14, 2001
TGA4501-EPU
Assembly Process Notes
Reflow process assembly notes:
• Use AuSn (80/20) solder with limited exposure to temperatures at or above 300ΓC.
• An alloy station or conveyor furnace with reducing atmosphere should be used.
• No fluxes should be utilized.
• Coefficient of thermal expansion matching is critical for long-term reliability.
• Devices must be stored in a dry nitrogen atmosphere.
Component placement and adhesive attachment assembly notes:
• Vacuum pencils and/or vacuum collets are the preferred method of pick up.
• Air bridges must be avoided during placement.
• The force impact is critical during auto placement.
• Organic attachment can be used in low-power applications.
• Curing should be done in a convection oven; proper exhaust is a safety concern.
• Microwave or radiant curing should not be used because of differential heating.
• Coefficient of thermal expansion matching is critical.
Interconnect process assembly notes:
• Thermosonic ball bonding is the preferred interconnect technique.
• Force, time, and ultrasonics are critical parameters.
• Aluminum wire should not be used.
• Discrete FET devices with small pad sizes should be bonded with 0.0007-inch wire.
• Maximum stage temperature is 200ΓC.
GaAs MMIC devices are susceptible to damage from Electrostatic Discharge. Proper precautions should
be observed during handling, assembly and test.
Note: Devices designated as EPU are typically early in their characterization process prior to finalizing all electrical and process
specifications. Specifications are subject to change without notice.
TriQuint Semiconductor Texas: Phone [phone] Fax [phone] Web: www.triquint.com
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