SiC enables higher power density, faster switching times and reduced operating temperatures – features which lead to smaller, lighter systems offering superior performance and value.
SIC codes are employed in Securities and Exchange Commission filings to identify an industry. They’re organized into 83 two-digit major groups, 416 three-digit industry groups, and over 1,000 four-digit industries.
Improved Efficiency
Silicon is an established material, yet it often falls short when meeting high-power performance requirements. Once silicon begins to heat up and lose efficiency, its effects are significant: shorter lifespan, increased power loss and greater cooling requirements. Silicon carbide offers much better performance with fast switching speeds and reduced energy losses that mitigate these negative consequences and provide system designers with additional value.
SiC devices boast improved energy conversion capabilities and compact sizes that offer significant advantages in many systems, from data centers to EVs. Their improved energy conversion efficiency translates to cost savings and decreased environmental impact; and longer driving range, more space-efficient batteries/motors/batteries as well as thermal management for increased reliability are among its many advantages in both cases.
SiC’s superior performance over time enables longer lifespan, which reduces operating and maintenance costs that accumulate over time. Furthermore, its ability to mitigate heat effectively eliminates the need for large heat sinks which further lowers component and system costs.
ST’s SmartSiCTM devices are helping create more energy-efficient, lighter weight and smaller systems for various EV applications such as onboard chargers, DC-DC converters and traction inverters – helping make these cars more practical, affordable and attractive to consumers.
Cost Savings
Power electronics companies are rapidly adopting wide bandgap (WBG) devices as they deliver lower losses, faster switching speeds and smaller and lighter components for inverters on electric vehicles – with Tesla, BYD and Lucid all employing full SiC MOSFETs in their designs.
SiC’s lower resistance compared to silicon is key to these advantages, leading to smaller device sizes that increase die yield while simultaneously decreasing manufacturing costs significantly.
SiC’s ability to operate at higher temperatures and frequencies results in decreased energy use and cooling needs – further lowering total system cost. This feature is especially valuable in applications like data centers or industrial equipment where space is at a premium.
Soon, 200mm wafers should be available, helping reduce fabrication costs further and thus increase SiC’s competitiveness further.
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Integral protection functions are integral parts of high-voltage (HV) power devices used for applications like solid state circuit breakers. Level-1 reflex action to safeguard devices while digital control ensures safe and optimal performance – together these features reduce system costs by decreasing the required number of HV components.
SiC’s low defect density provides greater reliability in harsh environments than silicon devices do, making it ideal for applications like electric vehicle inverters which operate outdoors and require reliable operation at elevated temperatures and voltages.
Wolfspeed has over three decades of legacy data on HV power devices that allows us to calculate their robustness using several factors such as blocking voltage, gate oxide voltage/electrical field combination, gate current/temperature combination and humidity conditions. By gathering failure rate information across these parameters we are able to calculate FIT rates accurately while screening out extrinsic defects from consideration.
Wolfspeed’s innovative approach has allowed them to successfully demonstrate an all-SiC power module capable of reliably handling 800A and 3.3kV blocking. The module successfully passed stringent environmental testing required for outdoor applications in transportation, wind/solar energy production and renewable technologies – 85 percent humidity at 85 degC ambient and 80 percent of its rated voltage under bias is included as requirements.
Long Lifespan
SiC power devices have quickly made an impactful entry into multiple industries, from data center power supplies and three-phase inverters for electric motors to three-phase traction inverters for industrial production lines. SiC’s superior bandgap, 10x greater breakdown electric field strength and 2x thermal conductivity compare favorably to Si devices for greater cycling stability as well as reduced system costs make this device increasingly attractive.
Sic devices’ long lifespan helps lower waste generated during lithium battery cathode material sintering processes, as the frequency of replacement saggers can be drastically decreased with their help; in addition, sic sintering targets contribute towards resource conservation and lower the environmental footprint associated with manufacturing.
What Does [sic] Mean? When writers use [sic] in text, it means they are quoting an original piece that contains spelling or grammatical errors and drawing attention to them in some other form of writing. By including sic in quotes or parentheses or italicizing it in their quoted text, writers can show readers they know about these issues in the original text and are making readers aware. Sic can also be used to indicate an incorrect factual text which was referenced before in an indirect fashion by reference back to itself – making readers aware of its error as opposed to its logic error being present within.
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