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SLAC
Menlo Park, California
Electron Accelerators
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Maxwell 3D for megawatt-class IGBTs
OTHER SOLUTIONS
• HFSS for a multi-megawatt-mode converter
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The Stanford Linear Accelerator Center (SLAC) is one of the world 's leading research laboratories. Established in 1962, SLAC's mission is to design, construct, and operate state-of-the-art electron accelerators and related experimental facilities for use in high-energy physics and synchrotron radiation research.
THE NEED
To optimize the performance of high-speed, pulsed-power, Insulated Gate Bipolar Transistor (IGBT) applications
THE SOLUTION
Maxwell 3D
SLAC uses Maxwell 3D for electromagnetic simulations showing density profiles for internal IGBT bonding wires and busbars during fast dI/dt conditions.
"A number of design ideas naturally flow from these results," wrote G. E. Leyh at SLAC, author of "A Critical Analysis of IGBT Geometries, with the Intention of Mitigating Undesirable Destruction Caused by Fault Scenarios of an Adverse Nature."
One of the designs, writes Leyh, "has the advantage of improved manufacturability and compatibility with existing IGBT module footprints."
To evaluate real-world performance parameters, SLAC produced a number of IGBT module prototypes, with the mechanical design of the die substrates, buswork, and packaging based on Maxwell 3D's simulation results.
"This design features a number of optimizations for surviving high dI/dt fault events," writes Leyh.
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