Fuji Electric exhibited at PCIM Asia

On June 28, 2016, the three-day Shanghai International Power Components and Renewable Energy Management Exhibition (PCIM Asia) was grandly opened at the Shanghai World Expo Exhibition & Convention Center. Focusing on renewable energy technologies, Fuji Electric (China) Co., Ltd. brought new products to the exhibition, namely Fuji Electric X-series 7th generation IGBTs, high-power next-generation core modules (HPnC) using 7th generation IGBTs, high-current density six-in-one IGBT modules for automotive applications, and full SiC 2in1 modules (SiC MOS-FET & SiC Schottky diodes). In addition, IGBT modules for 3-level inverter applications, hybrid IGBT modules (Si-IGBT and SiC-Schottky diodes), the 2nd generation SJ-MOSFET 600V series, and high-speed W series single-tube IGBTs were also exhibited.

With the centralized appearance of the "four beauties" in the Chinese market, Toshio Tsukakoshi, director of the semiconductor business headquarters of Fuji Electric (China) Co., Ltd., and Xu Guowei, director of the semiconductor business department of Fuji Electric (China) Co., Ltd., explained the industry strategy of the department in China to China Industrial Control Network: first, to increase its market share in the traditional industrial market with products with higher performance, stronger competitiveness and better cost performance; Second, with the help of advantageous automotive power semiconductors, seize the development opportunities of China's new energy vehicle industry.

Product innovation to cope with the "new normal"

In the face of China's traditional industrial automation market and China's economic "new normal", every automation manufacturer is actively responding. In recent years, as the global demand for energy has increased, there have been higher requirements for energy conservation in various fields, and production sites such as factories are focusing on miniaturization, space saving, and high reliability of machinery and equipment. This year, Fuji Electric's Semiconductor Sales Division launched the 7th generation of Fuji Electric's X-series IGBTs, and exhibited samples of high-power next-generation core modules (HPnC) using 7th generation IGBTs.

IGBT module is a core device that can achieve energy saving and stable power supply, and is widely used in various industrial equipment such as inverters for motor drives, uninterruptible power supply units (UPS), power conditioners for wind and solar power generation equipment, etc.

According to Toshio Tsukakoshi and Kuni-Wei Tsuki, Fuji Electric's X-Series 7th generation IGBTs have achieved an optimal component structure by reducing the thickness and miniaturization of the IGBT elements and diode elements that make up this module. As a result, the operating power consumption of the inverter is reduced compared to the sixth-generation "V Series", which contributes to energy saving and lower power costs in the equipment. In addition, the 7th generation IGBTs adopt more advanced packaging technologies, such as the 75A PIM-IGBT package size is reduced by 36% and is more miniaturized; The maximum continuous operating temperature has been increased from 150°C to 175°C, making it possible to expand the current level by 50% while maintaining the original size of the device.

In terms of new materials, Fuji Electric recently launched a hybrid module product series equipped with a new generation of power semiconductor components SiC (silicon carbide); At this exhibition, Fuji Electric also brought a full SiC 2in1 module (SiC MOS-FET & SiC Schottky diode), which adopts new concept packaging such as high temperature-resistant epoxy resin, thick copper foil layer on insulating substrate, and unbonded wire technology, demonstrating the excellent switching characteristics of all SiC modules.

"China's economic transformation is reflected in two aspects, one is the transformation and upgrading of China's economy, and the other is the transformation from Made in China to Created in China. On the one hand, user demand is influenced by the national policy leadership and industry development, and on the other hand, the transformation and improvement of subjective will to seek greater development space. Toshio Tsukakoshi pointed out that user needs are embodied in higher requirements for semiconductor raw materials, higher product technical requirements, and higher product reliability requirements, and at the same time, on the basis of ensuring the above needs, higher cost performance is required, and even some customers have the demand for decreasing costs year by year.

In the face of the new situation and new needs, Fuji Electric Semiconductor continues to pursue technological innovation with more than 30 years of experience accumulation, while upgrading and optimizing products in an all-round way, it is close to Chinese users with localized production and rapid service response. For example, its Shenzhen factory fully introduces the Japan lean production management concept to ensure product quality, shorten product time-to-market, provide local fast service, and help customers effectively reduce costs. Based on the above, Toshio Tsukakoshi believes that Fuji Electric Semiconductor will perform even better in China's traditional industrial fields.

Aiming at new energy vehicles, we will continue to make efforts

As a highlight of Fuji Electric's semiconductor business development, the sales of its power semiconductor modules in the new energy vehicle industry increased by 3 times year-on-year in 2015. Toshio Tsukakoshi explained, "Driven by new energy vehicles and charging piles, the power semiconductor module industry represented by IGBT has ushered in new growth opportunities, especially in 2015, when new energy vehicles entered an explosive period. Fuji Electric's IGBT module orders are mainly from the application of electric buses, which has just started in a small market with a large growth rate. ”

At the exhibition, Fuji Electric brought its latest product, the high-current density six-in-one IGBT module, for automotive applications, which can be used in electric vehicles such as pure electric vehicles (EVs) and hybrid electric vehicles (HEVs). It is the third generation of Fuji Electric's automotive-grade IGBT modules.

Compared with the previous generation technology, the new third-generation product is 50% smaller in size and 60% lighter, while the power density is about twice that of the original. The rated voltage is 750V, the rated current is 800A, and the maximum operating temperature is 175°C. Like the second-generation product, the third-generation model uses the "direct water cooling method", but the cooling mechanism has been improved. The material of the cooling fan was changed from copper to aluminum, and the shape and configuration of the cooling pad were changed. In addition, a "water tank" with running water is installed on the side of the cooling sheet of the IGBT module. By improving the internal structure of the sink, the cooling performance of the product is improved. Another improvement is the adoption of "RC-IGBT", which integrates an IGBT and a diode on a single chip. Compared to the separate configuration of IGBTs and diodes, the chip area of the power components can be reduced. Fuji Electric's latest seventh-generation "X Series" products are used in the IGBTs.

According to Toshio Tsukakoshi, due to the long development cycle of electric vehicles, Fuji Electric maintains zero-distance contact with partners in this field, fully understands customer needs and jointly develops customized products, and the business cooperation model between the two sides is not a pure buying and selling relationship, but a strategic partnership that pays more attention to long-term development. In view of the fact that the IGBT module is the core device of the electronic control system and DC charging pile of new energy vehicles, Fuji Electric will gradually extend it in the field of new energy vehicles and charging piles.

Fuji Electric exhibited at PCIM Asia

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