The introduction of chip inductors
Chip inductors, also known as surface-mount inductors with other chip components (SMC and SMD), is applicable to surface mount technology (SMT), a new generation of leadless or short-lead micro-electronic components. Welding surface terminations in the same plane.
The chip inductor winding and laminated two types. The former is a product of the miniaturization of the traditional wire-wound inductor; the latter multilayer printed and laminated production, craft production, the volume is smaller than the Wound Chip Inductors, the field of inductive components focus on developing products. Chip inductors situation and development trend due to micro-inductors to achieve a sufficient amount of inductance and quality factor (Q) is more difficult, while the magnetic components in the circuit and magnetic circuit are intertwined, the production process is more complex, so as the three basic passive components, one of the inductor chip, has lagged far behind in the capacitors and resistors.
SMC mainstream products, chip multilayer ceramic capacitors (MLCCs), from the chips of lead multilayer ceramic capacitors for hybrid integrated circuit (HIC) mount. In the 1960s, the U.S. JDI, Sprague began production. In 1977, Panasonic ultra-thin such as transistor radios and consumer electronics products, first used SMT and SMC and SMD technology.
The late 1970s, Japan, the United States and other countries to adapt to the SMT need to begin the research and development of the chip inductors, and soon realized industrialization.