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Via Technology Packages Power Modules

Dec. 5, 2012
Packaging can be challenging for both RF and direct-current (DC) power circuits. For circuits ranging from chip-scale devices to power modules, however, a new packaging option is now available from Remtec. The company has merged the thermally and electrically conductive Power Transfer Vias (PTVs) with its core Plated Copper on Thick Film (PCTF) metallization technology.

Packaging can be challenging for both RF and direct-current (DC) power circuits. For circuits ranging from chip-scale devices to power modules, however, a new packaging option is now available from Remtec. The company has merged the thermally and electrically conductive Power Transfer Vias (PTVs) with its core Plated Copper on Thick Film (PCTF) metallization technology. In doing so, Remtec has achieved a miniaturized, high-performance, and cost-effective packaging solution for high-power gallium-nitride (GaN), gallium-arsenide (GaAs), silicon (Si), and silicon-carbide (SiC) devices (see figure)

When combined with other PCTF features, PTV vias can be used in applications requiring smaller, lower-cost packages, higher switching speeds, efficient heat removal, and higher power and integration levels.

This universal packaging solution boasts high-current-carrying capacity in excess of 50 A, low lead inductance, and thermal resistance below 1°C/W. In addition, it provides a low-loss RF signal transition at a broad frequency range (to millimeter-wave frequencies) and an improved match of thermal coefficient of expansion (TCE) with printed-circuit boards (PCBs) and heatsinks. The PCTF substrates and packages with PTVs are fully compatible with all common assembly methods, such as surface-mount-technology (SMT) reflow solder; gold tin brazing and eutectic die attach; gold and aluminum wire and ribbon bonding; ball-grid arrays; and flip-chip technology.

About the Author

Nancy Friedrich | Editor-in-Chief

Nancy Friedrich began her career in technical publishing in 1998. After a stint with sister publication Electronic Design as Chief Copy Editor, Nancy worked as Managing Editor of Embedded Systems Development. She then became a Technology Editor at Wireless Systems Design, an offshoot of Microwaves & RF. Nancy has called the microwave space “home” since 2005.

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