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Navitas Announces Entry into High Power Markets

May 23, 2023 by Ashok Bindra

Targeting high-power applications ranging from 10s kW to MW in rail, electric vehicle, industry,
solar, wind and energy storage, wide bandgap (WBG) semiconductor supplier Navitas
Semiconductor has announced its entry into high-power markets (Figure 1). Employing GeneSiC
products and technology, the company has launched silicon carbide (SiC) based power modules
called SiCPAK, as well as SiC MOSFET and MPS diodes in bare die forms. A comprehensive
power-module roadmap is in the works, said the maker. High performance SiC supplier GeneSiC
was acquired by the company last summer.

FIG 1 Navitas announces SiC based high-power modules.

Offering modules ranging from 650 V to 6,500 V, the initial release will include 50 kW, 1,200
V-rated half-bridge modules in 6, 12, 20, and 30 m Ὼ ratings. The 50 kW half-bridge module, as
well as 6.5 kV parts, are available now to qualified customers, said Navitas. In addition, added
the manufacturer, multiple configurations of SiC MOSFETs and MPS diodes will be available to
create application-specific modules for high system performance.
According to Navitas, SiCPAK modules employ ‘press-fit’ technology to offer compact form
factors for power circuits and deliver cost-effective, power-dense solutions to end users. The
modules are built based on GeneSiC die that have demonstrated superior performance, reliability,
and ruggedness. In a statement, Navitas EVP for SiC Dr. Ranbir Singh stated, “With a complete
portfolio of leading-edge power, control and isolation technology, Navitas will enable customers
to accelerate the transition from fossil fuels, and legacy silicon power products to new, renewable
energy sources and next-generation semiconductors, with more powerful, more efficient, faster-
charging systems.”
Within the lead-free SiCPAK, each SiC chip is silver (Ag) sintered to the module’s substrate
for superior cooling and reliability. The substrate itself is ‘direct-bonded copper’ (DBC) and
manufactured using an active-metal brazing (AMB) technique on silicon-nitride (Si3N4)
ceramics, ideal for power-cycling applications. This construction delivers excellent strength and
flexibility, fracture resistance, and good thermal conductivity for cool, reliable, long-life
operation.

For designers who prefer to make their own high-power modules, all GeneSiC MOSFET and
MPS diodes are available in bare die format, with gold (Au) and aluminum (Al) top-side
metalizations, said the manufacturer.

Filed Under: Industry News

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IEEE Power Electronics Magazine publishes peer-reviewed articles related to power electronics and its applications which encompass the effective use of electronic components, application of control theory and circuit design techniques, and the development of analytical tools used in efficient and effective energy conversion, control, utilization, and conditioning of electric power.

The IEEE Power Electronics Magazine is limited to the field of interest of the IEEE Power Electronics Society. Topics also include publication of new trend technologies that are being pursued by industry, design practices and case studies, significant amount of state of the art surveys tutorials, and non-technical contributions: news about society activities, interviews, and historical articles.

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