Spectrum Microwave, an RF & Microwave Components and Systems Businesss Spectrum Microwave welcomes Sage Laboratories to the combined talents of Amplifonix, Q-Bit, EMF, Magnum, Radian, FSY, and Salisbury Engineering in one world class organization
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  Build To Print | Flux-Free Soldering
 
Flux-Free Soldering Flux-Free Soldering

Fluxless Void-free Soldering

Flux use removes oxides from the substrate and inhibits further oxidation insuring both intimate substrate-to-alloy contact and a secure bond. Spectrum Microwave offers flux-free soldering for the fabrication of precision void free solder joints. Flux-free soldering provides a lower thermal path, enhanced reliability, and the lowest resistance RF ground performance.

Spectrum Microwave's Programmable Vacuum/Pressure furnaces enable this repeatable flux-free soldering through precise automatically controlled heating to levels of 500°C, inert gas environments at pressures up to 50 psig or vacuum levels down to 50 millitorr, and regulated cooling rates.

Spectrum Microwave's DAP flux-free soldering provides a consistent and even distribution of soldering thus eliminating voids which can cause poor grounding leading to parasitics and signal degradation, especially at higher frequencies.

SST DAP-2200 Reflow System

  • Void Free Solder Capabilities
  • Fluxless Processing
  • High power Applications
  • Millimeter Wave RF Applications
 
Ordinary Reflow Proess

Ordinary Reflow Process

X-ray image of a MMIC's backplane under high magnification. Black spots indicate where no solder has been applied to the backside surface.

 
Void-Free DAP Process

Spectrum Microwave's Void-Free DAP Process

Image clearly shows complete transfer of solder thus providing superior bonding required for today's high performance RF & Microwave applications.