TGS4304 Datasheet, PDF (10/10 Pages) TriQuint Semiconductor – High Power Ka-Band Absorptive SPDT Switch

Advance Product Information
September 26, 2005
TGS4304
Assembly Process Notes
Reflow process assembly notes:
• Use AuSn (80/20) solder with limited exposure to temperatures at or above 300°C.
(30 seconds maximum)
• 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.
• Maximum stage temperature is 200°C.
GaAs MMIC devices are susceptible to damage from Electrostatic Discharge. Proper precautions should
be observed during handling, assembly and test.
10
TriQuint Semiconductor Texas Phone: [phone] Fax: [phone] Email: [e-mail] Web: www.triquint.com