Toward Partial Discharge Reduction by Corner Correction in Power Module Layouts

Mukherjee, Shilpi; Evans, Tristan M.; Narayanasamy, Balaji; Le, Quang Trung; Emon, Asif Imran; Deshpande, Amol; Luo, Fang; Peng, Yarui; Pytel, Steve; Vrotsos, Tom; Mantooth, Alan

doi:10.1109/compel.2018.8459973

Cited by 14 publications

(5 citation statements)

References 7 publications

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“…Much of dielectrics research reported has been application-or component-specific. To name a few, electric field analysis and high voltage experiments have been performed to investigate the impact of the spacing and the sharpness of power modules traces [112]. The triple point, where ceramic substrate, metallisation layer, and encapsulant join together, of direct bond copper (DBC) power substrates has been coated with high permittivity materials to increase partial discharge inception voltage (PDIV) [113,114].…”

Section: Insulating Materials In More-electric Shipsmentioning

confidence: 99%

Insulating materials for realising carbon neutrality: Opportunities, remaining issues and challenges

Yang

et al. 2022

High Voltage

113

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The 2050 carbon‐neutral vision spawns a novel energy structure revolution, and the construction of the future energy structure is based on equipment innovation. Insulating material, as the core of electrical power equipment and electrified transportation asset, faces unprecedented challenges and opportunities. The goal of carbon neutral and the urgent need for innovation in electric power equipment and electrification assets are first discussed. The engineering challenges constrained by the insulation system in future electric power equipment/devices and electrified transportation assets are investigated. Insulating materials, including intelligent insulating material, high thermal conductivity insulating material, high energy storage density insulating material, extreme environment resistant insulating material, and environmental‐friendly insulating material, are categorised with their scientific issues, opportunities and challenges under the goal of carbon neutrality being discussed. In the context of carbon neutrality, not only improves the understanding of the insulation problems from a macro level, that is, electrical power equipment and electrified transportation asset, but also offers opportunities, remaining issues and challenges from the insulating material level. It is hoped that this paper envisions the challenges regarding design and reliability of insulations in electrical equipment and electric vehicles in the context of policies towards carbon neutrality rules. The authors also hope that this paper can be helpful in future development and research of novel insulating materials, which promote the realisation of the carbon‐neutral vision.

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Section: Insulating Materials In More-electric Shipsmentioning

confidence: 99%

Insulating materials for realising carbon neutrality: Opportunities, remaining issues and challenges

Yang

et al. 2022

High Voltage

113

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“…IGBT modules may undergo partial discharge, and optical detection of the possibl problem is sometimes carried out. Therefore, their insulating layer needs to be transparen [39,40]. A photograph of Crosslinked PIS covering a printed design is shown in Figure 7 While Crosslinked PIS had a yellow color, it is basically transparent.…”

Section: Optical Property Of Crosslinked Pismentioning

confidence: 99%

Preparation of a Crosslinked Poly(imide-siloxane) for Application to Transistor Insulation

Park¹,

Choi²,

Jin³

et al. 2022

Polymers

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Insulated gate bipolar transistor (IGBT) is an important power device for the conversion, control, and transmission of semiconductor power, and is used in various industrial fields. The IGBT module currently uses silicone gel as an insulating layer. Since higher power density and more severe temperature applications have become the trend according to the development of electronic device industry, insulating materials with improved heat resistance and insulation performances should be developed. In this study, we intended to synthesize a new insulating material with enhanced thermal stability and reduced thermal conductivity. Poly(imide-siloxane) (PIS) was prepared and crosslinked through a hydrosilylation reaction to obtain a semi-solid Crosslinked PIS. Thermal decomposition temperature, thermal conductivity, optical transparency, dielectric constant, and rheological property of the Crosslinked PIS were investigated and compared to those of a commercial silicone gel. The Crosslinked PIS showed high thermal stability and low thermal conductivity, along with other desirable properties, and so could be useful as an IGBT-insulating material.

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“…This rule-of-thumb was codified in PowerSynth as a post-layout optimization feature of the final layout. Detailed results can be found in [20]. Figure 20 shows an example of a final layout generated by PowerSynth and the assignment of appropriately sized fillets at sharp corners.…”

Section: Post-layout Optimizationmentioning

confidence: 99%

PowerSynth progression on layout optimization for reliability and signal integrity

Peng

Razi

et al. 2020

NOLTA

Self Cite

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PowerSynth has been developed to significantly accelerate power module design through a multi-objective layout synthesis and optimization process. It uses a series of layout generation and optimization algorithms and various electrical and thermal models to automatically synthesize power module layouts and create a Pareto surface of solutions with optimum electrical and thermal performance. Recent advanced power modules are designed with various types of components integrated on multiple device layers to minimize the parasitics and increase power density. With more compact layouts and tighter design constraints, power module design becomes increasingly challenging because of reliability and signal integrity issues, such as partial discharge, electromagnetic interference (EMI), electro migration, and noise-induced false turn-on. This paper summarizes the latest PowerSynth layout engine and model improvements with an emphasis on the new reliability and signal integrity features. A generic and scalable constraint-aware layout engine is developed to process generic types of devices, traces, and connectors in power modules. Electrical models are improved from a 1D wire model to a 2D mesh model with enhanced feature sets to better capture the intrinsic layout structures and extract coupling between power and gate loops. EMI models are built on top of it to further reduce the noise analysis and qualification requirement posted on designers. Finally, a new post-layout optimization step is included in the flow as an improvement of design for manufacturability and reliability. The software development along with the hardware testing results demonstrates the latest advances in design automation for power electronics.

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Toward Partial Discharge Reduction by Corner Correction in Power Module Layouts

Cited by 14 publications

References 7 publications

Insulating materials for realising carbon neutrality: Opportunities, remaining issues and challenges

Insulating materials for realising carbon neutrality: Opportunities, remaining issues and challenges

Preparation of a Crosslinked Poly(imide-siloxane) for Application to Transistor Insulation

PowerSynth progression on layout optimization for reliability and signal integrity

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