Five largest magnetic sensor suppliers account for 80% of the overall market

According to IHS iSuppli's special report on MEMS and sensors, the top five suppliers of silicon magnetic sensors account for more than 80% of the global market. These sensors are widely used in automotive applications and digital compasses for smart phones and tablets, such as Apple's iPhone and iPad.

In 2010, the total revenue of the top five suppliers of silicon magnetic sensors reached 962 million U.S. dollars, accounting for 82% of the overall market of 1.18 billion U.S. dollars. The top five suppliers are Asahi Kasei Microsystems of Japan, Allegro Microsystems of the United States, Infineon of Germany, Micronas of Switzerland and Melexis N of Belgium. V. .

Magnetic sensors are used in more than 70 automotive applications, including anti-lock braking systems, electronic steering and throttle control, battery management and automotive transmissions. Digital compasses are also an important market for magnetic sensors and are becoming standard devices in tablet computers and mobile phone global positioning systems (GPS). For example, the iPhone and iPad use electronic compasses in pedestrian and vehicle navigation, and are also used in applications such as location-based services and augmented reality.

Asahi Kasei Microsystems (AKM) ranked first in 2009, operating revenue of 300 million US dollars in 2010, reelected the first. Unlike the other four major manufacturers, the company has a broad product portfolio but has limited investment in automotive applications. The reason why the company occupied the top spot is because it supplies a large number of Hall electromagnetic compasses. These compasses are used in a variety of products such as mobile phones, tablet computers, digital cameras, personal navigation devices and MP3 players.

AKM's 3-axis electronic compass accounts for more than one-third of its overall magnetic sensor operating revenue, and the remaining two-thirds come from low-cost switches and sensors for consumer electronics and appliances. In this regard, AKM also has an undisputed dominance in the world. According to IHS iSuppli's research, AKM enjoys huge economies of scale in the production of commodity Hall elements and integrated circuits, and almost no one can compete with them. The high-priced electronic compass helps the company to obtain the top ranking in revenue. The company’s operating income increased by 58% from the $190 million in 2009.

The other four major manufacturers also ranked No. 2 in Allegro Microsystems with operating revenue of US$ 264 million and were also the leading automotive magnetic sensor suppliers. After withdrawing from the field of consumer switching, the company has invested more energy in higher value automotive products such as camshaft sensors. Allegro is also very strong in the field of battery management current sensors for automotive applications. Among the top five manufacturers, the company’s operating income increased the most, which is a 75% increase from the US$151 million in 2009.

Infineon ranks third and is the largest supplier of wheel speed sensors. Infineon’s operating revenue in 2010 was US$148 million, a 40% increase from the US$106 million in 2009. The company is also at the forefront of integrating giant magnetoresistive sensor elements and application-specific integrated circuits (ASICs). The spatial resolution of the ASIC is higher than that of Hall sensors and is suitable for precision applications such as steering wheel angle measurement. Infineon does not value consumer electronics applications.

Micronas ranks fourth, with magnetic sensor operating revenue of $143 million in 2010, and is also the largest supplier of linear Hall sensors. Its product portfolio is very wide, most of it is for automotive applications, but more and more attention is paid to industrial sensors. Micronas has been developing 3D Hall technology but lags behind Melexis, who has used this new technology to gain a foothold in the market. The 3D Hall sensor expands the spatial resolution of the existing Hall sensor and can compete with the high-performance magnetic reluctance magnetic sensor. In 2010, Micronas’ operating revenue increased by 36% from the US$105 million in 2009.

Melexis ranks fifth, focusing on automotive applications, and has recently gained a significant share in the Chinese automotive market. The company’s 2010 operating income was US$107 million. It also provided commodity Hall switches for mobile display management applications. The company is the number one supplier of accelerator pedal sensors. In this field, Melexis Hall sensors and 3D Hall sensors are used in electronic throttle control systems. Many cars nowadays use electronic throttle control systems. In 2010, the company’s operating income increased by 43% from the US$75 million in 2009, which was the third highest among the top five manufacturers.

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