NTC thermistor chip produced by EXSENSE Electronic technology Co., Ltd., which plays the role of temperature monitoring and temperature control in the IGBT module due to its characteristics of high precision, high sensitivity and great reliability, as well as its resistance value varies with temperature.
IGBT is composed of BJT (Bipolar Junction Transistor) and MOSFET (Metal Oxide Semiconductor Field Field Effect Transistor), which is a composite fully controlled type-voltage driven type-power semiconductor device. It has the characteristic of self-shut-off, which is a non-on-off switch. IGBT is the core device of energy conversion and transmission, which has the characteristics of high efficiency, energy saving, heat dissipation and stability, etc. Using IGBT for power conversion can effectively improve the power efficiency and quality, and which is a key support module to solve the problem of energy shortage and reduce carbon emissions.
In recent years, due to various favorable measures in the fields of new energy automobiles, rail transit, intelligent power grid, etc., the market for IGBT is also growing. As a new type of power semiconductor devices mainstream devices, IGBT has been widely used in industry, 4C (communication, computer, consumer electronics, car electronics), aerospace and other traditional industries. In strategic emerging industries such as rail transit, new energy, intelligent power grid, new energy automobiles, etc., IGBT also occupies a position.
With the continuous development of IGBT technology, its actual operating temperature and power density also continue to improve. In order to ensure the stable operation of IGBT, NTC thermistor chip is needed to assist to help IGBT to carry out temperature monitoring, to avoid excessive operating temperature, resulting in device damage. At present, around the promotion and innovation of IGBT technology, no-welding, wireless-bonding and no-scale-board/no-substrate encapsulating technology has gradually been popularized and perfected. The addition of the temperature monitoring high-accuracy NTC thermistor chip, electric current sensor, drive circuit and other functional components within the module, makes the power density, integration level and Intelligent degree of IGBT constantly improve, effectively improving the rate of finished products.