Trends in the Semiconductor Industry Application Products Integrated Circuits Discrete SemiconductorDevice etc Process Technology Packaging Equipment&Material

Discrete Semiconductor Devices, etc.


2012 : Development of Stacked CMOS Image Sensor

The market size of the CMOS image sensor has rapidly expanded due to the spread of mobile phones. In order to realize the addition of new functions, high speed and low power consumption, a three-dimensional stacked CMOS image sensor has been developed in which pixels and logic circuits are fabricated on separate substrates and the substrates are then stacked one above the other.

2013 : Development of 100 Gb/s Full-band Wavelength Tunable Laser for Digital Coherent Communication

A full-band tunable laser, which Sumitomo Electric Industries commercialized as a light source for 100 Gb / s digital coherent communication in 2013, has its own CSG-DR (Chirped-Sampled-Grating Distributed Reflector) structure and localized thermal control by integrated heaters, and it realized both the high optical fiber output of +16 dBm or more and narrow line width of 200 kHz or less simultaneously. It became an important milestone toward further increasing the capacity of optical networks in the future by improving spectrum utilization efficiency.

2014 : Development of 3.3 kV/1.5 kA SiC-MOSFET

Mitsubishi Electric developed and announced a 3.3 kV SiC-MOSFET in 2013. In 2014, it developed a 3.3 kV/1.5 kA full SiC power module equipped with 3.3 kV SiC-MOSFET and SiC-SBD and realized the world 's first installment in the inverter for a railway car.

2015 : Development of High Luminous Flux / High Efficiency White LED Exceeding Halogen Lamps and Mercury Lamps Development of High Luminous Flux/High Efficiency White LED Exceeding Halogen Lamps and Mercury Lamps

In addition to the improvement of the blue LED element and the phosphor material, Citizen Electronics has developed a unique package technology that directly mounts the LED element on an aluminum substrate with high heat conductivity, and it developed and commercialized a high-luminous and high-efficiency white LED ahead of the world which realized the same total luminous flux amount (60 – 80 thousand lumens) as the 1 kW class mercury lamp with a power input of several hundred watts.
It has been adopted for indoor and outdoor large-sized lighting devices such as stadiums and merchandising lighting where mercury lamps and halogen lamps were conventionally used.