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The vehicle sheet multilayer ceramic capacitors offer high reliability and greater capacity
2012-03-27 by seoer6
The monolithic ceramic capacitor has contributed to the miniaturization of electronic equipment, digital and high-frequency. Murata's ceramic processing technology and unique material, ultra-compact, high-capacity, low ESR and high frequency capacitors, especially the type certification to the automotive capacitors and safety requirements that require high reliability capacitor. Murata vehicle specific ceramic capacitor product line, while promoting high-capacity, the species effectively expanded by adding the products to meet the high demand, such as can bear 150 ℃ high temperature products, small products, resistant to temperature cycling and base piece song Alice excellent performance resin electrode products to meet the full needs of the automobile manufacturers and automotive equipment manufacturers.
Murata Manufacturing Co., Chip Multilayer ceramic capacitors for car use launched the main product is able to meet automotive reliability requirements of the GCM series. The series has the following characteristics: the requirements of AEC-Q200 standards; nickel barrier terminals to give the solder leaching with high resistance for reflow soldering and wave soldering; R7/C7/5C Series Operating Temperature Range: -55 to 125 ° C; are available to choose from the length and width of bristle thickness of 0.6 × 0.3 × 0.3mm thickness of the micro to the length and width of bristle for a variety of dimensions of 3.2 × 2.5 × 2.5mm; paper with embossed tape and reel packaging, you can automatically mount; for lead-free products.
The capacitors are widely used in electronic equipment including Chip multilayer ceramic capacitors, tantalum capacitors and aluminum electrolytic capacitors. Ceramic capacitors with high dielectric constant capacitor ceramics (barium titanate, titanium dioxide) squeezed into the tube, wafer, or disc as a medium, and burn infiltration silver-plated ceramic made as the Welding Electrodes . It also points the high-frequency ceramic and low-frequency ceramic dielectric two. Tantalum capacitors stands as tantalum electrolytic capacitors, also belong to the kind of electrolytic capacitor, tantalum do media, unlike the ordinary electrolytic capacitor using the electrolyte tantalum capacitors do not need to be used like an ordinary electrolytic capacitors as plating of aluminum capacitor paper burn The system itself is almost no inductance, but also limits its capacity. Which is characterized by long life, high temperature, high accuracy, high-frequency filter change excellent, but the capacity is smaller, the price is more expensive than aluminum capacitors, and resistance to voltage and current capability is weak. Chip multilayer ceramic capacitors capacitance is smaller than other types of capacitors, so use is limited. If a large capacity problem to be resolved smoothly, it will be tantalum capacitors and aluminum electrolytic capacitors replaced with higher reliability Chip multilayer ceramic capacitors.
Murata Manufacturing Co., Ltd. has been in the original tantalum capacitors for the mainstream of 4.7μF to 100μF range, to achieve a steady increase of the sheet multilayer ceramic capacitors varieties, in the GCM series introduced a maximum capacitance of 47μF (withstand voltage 6.3V) varieties. Vehicle equipment used in capacitors, multilayer ceramic products account for a proportion of the future is expected to rapidly increase.
To increase the electrostatic capacity of the sheet multilayer ceramic capacitor, the key is thinning of the dielectric layer. Chip multilayer ceramic capacitors using overlapping formation by a sheet of ceramic dielectric multilayer structure. Layered dielectric body more layers, the greater the capacitance. Therefore, the thinning of the dielectric body and increase its number of layers, and can maintain the same dimensions of the components, the capacitance increases. However, only thinning of the dielectric body, may cause the pressure drop and so detrimental to reliability. To solve these problems, Chengdu and the Aluminium Welding Wires and dielectric planarization and other technologies essential to constitute the dielectric particles of miniaturization. Murata Manufacturing Co., by virtue of the advantage from the material to the development of manufacturing equipment, train, and to provide greater capacity of capacitor products.
In addition, Murata also launched the car using the dielectric thin layer technology development with a small product. "0402" (1.0 x 0.5mm) GCM15 series and "0201" (0.6 x 0.3mm) GCM03 series. With the limited space of a car equipped with Denso equipment increasing miniaturization will place increasing demands, the needs of the smaller 0201 products will be gradually expanded.
Particularly high in the engine and gearbox body temperature direct encapsulation of electronic circuits "mechatronics," the trend is growing, the maximum operating temperature range of vehicle components has been increased to 150 ° C. Murata Manufacturing Co., Ltd. In response to this demand, the introduction of the working temperature range to -55 ° C to 150 ° C products. More than 150 ° C, it is difficult to solder package, also launched a 150 ℃ high temperature to ensure product available conductive adhesives, encapsulation, "the GCG series. Will be set at the copper electrode surface of Ni / Sn layer replaced with Ag / Pd, the application of conductive adhesives.
In order to meet the car manufacturers and automotive equipment manufacturers to further improve the reliability requirements, Murata Manufacturing Co., developed the bottom of the external electrode conductive resin with GCJ series. Is characterized by a dielectric body make an effort through the construction of the external electrode, by external force to prevent internal cracking occurs. GCJ series set resin in the copper electrode on the external electrodes lower electrode, and its lateral Ni / Sn plating processing independent structure. In addition, by optimizing the shape of the external electrode, inhibited by the physical force applied to the internal dielectric stresses. Under large stress, resin electrode layer off easily to prevent the dielectric body by the large stress cracking occurs.
Murata Manufacturing Co., Chip Multilayer ceramic capacitors for car use launched the main product is able to meet automotive reliability requirements of the GCM series. The series has the following characteristics: the requirements of AEC-Q200 standards; nickel barrier terminals to give the solder leaching with high resistance for reflow soldering and wave soldering; R7/C7/5C Series Operating Temperature Range: -55 to 125 ° C; are available to choose from the length and width of bristle thickness of 0.6 × 0.3 × 0.3mm thickness of the micro to the length and width of bristle for a variety of dimensions of 3.2 × 2.5 × 2.5mm; paper with embossed tape and reel packaging, you can automatically mount; for lead-free products.
The capacitors are widely used in electronic equipment including Chip multilayer ceramic capacitors, tantalum capacitors and aluminum electrolytic capacitors. Ceramic capacitors with high dielectric constant capacitor ceramics (barium titanate, titanium dioxide) squeezed into the tube, wafer, or disc as a medium, and burn infiltration silver-plated ceramic made as the Welding Electrodes . It also points the high-frequency ceramic and low-frequency ceramic dielectric two. Tantalum capacitors stands as tantalum electrolytic capacitors, also belong to the kind of electrolytic capacitor, tantalum do media, unlike the ordinary electrolytic capacitor using the electrolyte tantalum capacitors do not need to be used like an ordinary electrolytic capacitors as plating of aluminum capacitor paper burn The system itself is almost no inductance, but also limits its capacity. Which is characterized by long life, high temperature, high accuracy, high-frequency filter change excellent, but the capacity is smaller, the price is more expensive than aluminum capacitors, and resistance to voltage and current capability is weak. Chip multilayer ceramic capacitors capacitance is smaller than other types of capacitors, so use is limited. If a large capacity problem to be resolved smoothly, it will be tantalum capacitors and aluminum electrolytic capacitors replaced with higher reliability Chip multilayer ceramic capacitors.
Murata Manufacturing Co., Ltd. has been in the original tantalum capacitors for the mainstream of 4.7μF to 100μF range, to achieve a steady increase of the sheet multilayer ceramic capacitors varieties, in the GCM series introduced a maximum capacitance of 47μF (withstand voltage 6.3V) varieties. Vehicle equipment used in capacitors, multilayer ceramic products account for a proportion of the future is expected to rapidly increase.
To increase the electrostatic capacity of the sheet multilayer ceramic capacitor, the key is thinning of the dielectric layer. Chip multilayer ceramic capacitors using overlapping formation by a sheet of ceramic dielectric multilayer structure. Layered dielectric body more layers, the greater the capacitance. Therefore, the thinning of the dielectric body and increase its number of layers, and can maintain the same dimensions of the components, the capacitance increases. However, only thinning of the dielectric body, may cause the pressure drop and so detrimental to reliability. To solve these problems, Chengdu and the Aluminium Welding Wires and dielectric planarization and other technologies essential to constitute the dielectric particles of miniaturization. Murata Manufacturing Co., by virtue of the advantage from the material to the development of manufacturing equipment, train, and to provide greater capacity of capacitor products.
In addition, Murata also launched the car using the dielectric thin layer technology development with a small product. "0402" (1.0 x 0.5mm) GCM15 series and "0201" (0.6 x 0.3mm) GCM03 series. With the limited space of a car equipped with Denso equipment increasing miniaturization will place increasing demands, the needs of the smaller 0201 products will be gradually expanded.
Particularly high in the engine and gearbox body temperature direct encapsulation of electronic circuits "mechatronics," the trend is growing, the maximum operating temperature range of vehicle components has been increased to 150 ° C. Murata Manufacturing Co., Ltd. In response to this demand, the introduction of the working temperature range to -55 ° C to 150 ° C products. More than 150 ° C, it is difficult to solder package, also launched a 150 ℃ high temperature to ensure product available conductive adhesives, encapsulation, "the GCG series. Will be set at the copper electrode surface of Ni / Sn layer replaced with Ag / Pd, the application of conductive adhesives.
In order to meet the car manufacturers and automotive equipment manufacturers to further improve the reliability requirements, Murata Manufacturing Co., developed the bottom of the external electrode conductive resin with GCJ series. Is characterized by a dielectric body make an effort through the construction of the external electrode, by external force to prevent internal cracking occurs. GCJ series set resin in the copper electrode on the external electrodes lower electrode, and its lateral Ni / Sn plating processing independent structure. In addition, by optimizing the shape of the external electrode, inhibited by the physical force applied to the internal dielectric stresses. Under large stress, resin electrode layer off easily to prevent the dielectric body by the large stress cracking occurs.
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