Dynamic performance analysis of a 3.3 kV SiC MOSFET half-bridge module with parallel chips and body-diode freewheeling

Recently, 3.3 and 6.5 kV power MOSFETs have been introduced. Based on the 3.3 kV device, a 100 A half-bridge power module has been developed, using parallel chips for current scaling and relying exclusively on the use of the transistors body-diode for current free-wheeling (i.e., no antiparallel external diode chips are used). This paper presents a thorough parametric characterization of the module switching performance. Single-chip and parallel-chip operation are investigated in both double-pulsea type tests and realistic singlephase inverter operation

3.3 kV SiC JBS diode configurable rectifier module

This paper presents the use of innovative high-voltage SiC diode technology in the development of a user configurable full-wave or half-wave rectifier bridge. The devices are of merged Junction-Barrier-Schottky (JBS) type to enable for optimum performance even in the presence of current surges, as demanded by the application. To contain the cost of the proposed solution, their packaging relies on Insulated Metal Substrates (IMS), as opposed to conventional ceramic type substrates. The layout and module pin terminations are chosen to yield optimum electro-thermal and electro-magnetic performance in compatibility with a standard solder and wire-bond assembly process. Preliminary functional static characterization tests at different temper¬atures are also presented

Hybrid half-bridge package for high voltage application

3D power module structures allow for better cooling and lower parasitic inductances compared with the classical planar technology. In this paper, we present a hybrid half-bridge in a 3D packaging configuration, dedicated for high voltage application. A dynamic electrical test of the package is presented

Reliable integration of a high performance multi-chip half-bridge SiC power module

Silicon carbide (SiC) devices have been adopted to push the boundaries further in terms of power density, conversion efficiency, switching speed or thermal capability. To have the benefit of such semiconductors, new packaging should be developed to meet all the advantages. In this paper, we present a reliable integrated concept of a new packaging solution for multi-chip SiC devices aiming to have a very low parasitic inductance in order to have high switching frequencies and ensure a good reliability for long-term operation

Novel silicon carbide integrated power module for EV application

The successful penetration of Electric Vehicles (EVs) into the global automotive markets requires the developments of cost effective, high performance and high integration power electronic systems. The present work is concerned with the structural integration of power electronic converters to meet targets for increased power density, improved electrical performance and reduced cost without compromising thermal performance or reliability for EV applications. In particular, a SiC power module to integrate multiple functional elements, i.e. semiconductor devices, DC-link capacitors, output filters, current sensing, and gate driver within a single enclosure sharing a common cooling circuit has been designed and fabricated. Electrical test results showed very smooth waveforms of the outputs, verifying the high frequency switching capacity of the fabricated power module

Low parasitic inductance multi-chip SiC devices packaging technology

This paper presents a novel packaging structure which employs stacked substrate and flexible printed circuit board (PCB) to obtain very low parasitic inductance and hence feature high switching speed SiC power devices. A half-bridge module aimed at blocking voltage up to 2.5kV has been designed to accommodate 8 SiC JFETs and 4 SiC diodes. Electromagnetic simulation results reveal extremely low inductance values of the major loops. Then the prototyping of the designed package including the assembly process, all the electrical test to evaluate the electrical performance are presented

10-kV SiC MOSFET Power Module With Reduced Common-Mode Noise and Electric Field

The advancement of silicon carbide (SiC) power devices with voltage ratings exceeding 10 kV is expected to revolutionize medium- and high-voltage systems. However, present power module packages are limiting the performance of these unique switches. The objective of this research is to push the boundaries of high-density, high-speed, 10-kV power module packaging. The proposed package addresses the well-known electromagnetic and thermal challenges, as well as the prominent electrostatic and electromagnetic interference (EMI) issues associated with high-speed, 10-kV devices. The high-speed switching and high voltage rating of these devices causes significant EMI and high electric fields. Existing power module packages are unable to address these challenges, resulting in detrimental EMI and partial discharge that limit the converter operation. This article presents the design and testing of a 10-kV SiC mosfet power module that switches at a record 250 V/ns without compromising the signal and ground integrity due to an integrated screen reduces the common-mode current by ten times. This screen connection simultaneously increases the partial discharge inception voltage by more than 50%. With the integrated cooling system, the power module prototype achieves a power density of 4 W/mm 3

Low parasitic inductance multi-chip SiC devices packaging technology

This paper presents a novel packaging structure which employs stacked substrate and flexible printed circuit board (PCB) to obtain very low parasitic inductance and hence feature high switching speed SiC power devices. A half-bridge module aimed at blocking voltage up to 2.5kV has been designed to accommodate 8 SiC JFETs and 4 SiC diodes. Electromagnetic simulation results reveal extremely low inductance values of the major loops. Then the prototyping of the designed package including the assembly process, all the electrical test to evaluate the electrical performance are presented

Reliable Integration of a high performance multi-chip half-bridge SiC power module

Silicon carbide (SiC) devices have been adopted to push the boundaries further in terms of power density, conversion efficiency, switching speed or thermal capability. To have the benefit of such semiconductors, new packaging should be developed to meet all the advantages. In this paper, we present a reliable integrated concept of a new packaging solution for multi-chip SiC devices aiming to have a very low parasitic inductance in order to have high switching frequencies and ensure a good reliability for long-term operation

A wire-bond-less 10 KV SiC MOSFET power module with reduced common-mode noise and electric field

While wide-bandgap devices offer many benefits, they also bring new challenges for designers. In particular, the new 10 kV silicon carbide (SiC) MOSFETs can switch higher voltages faster and with lower losses than silicon devices while also being smaller in size. These features can result in premature dielectric breakdown, higher voltage overshoots, high-frequency current and voltage oscillations, and greater electromagnetic interference. In order to mitigate these side effects and thus fully utilize the benefits of these unique devices, advanced module packaging is needed. This work proposes a power module package with a small footprint (68 mm × 83 mm), low gate- and power-loop inductances (4 nH), increased partial discharge inception voltage (53 %), and reduced common-mode current (90 %)