Development of HiFi Sound Processors for Automobile Audio System by ROHM
Rohm has developed High Fidelity sound processors for car audio system. The newly developed BD375 ** series is a 18 models and all with different input/output channels as well as tuning functions, designed to be compatible with different audio sources, cabin interiors, entertainment systems, and customer preferences. The new processors comes with Rohm’s advanced switching technology capable of eliminating instantaneous disconnections causing shock noise, which occurs during adjustment, smoothing out the signal waveform during the period of adjustment resulting in virtually no shock noise. Read more
Development of Industry’s First 0.9V Drive MOSFETs for Mobile Devices by ROHM
Rohm made an announcement on development of industry’s first 0.9V type MOSFETs as part of expanding company’s ECOMOS series of low voltage drive. The newly developed drive is targeted for mobile devices such as portable audio, IC recorders, electronic dictionaries, portable radios as well as electronic toys to name a few. Rohm through development of this MOSFET has succeeded to control current leakage by optimizing the MOSFET gate layer and the channel profile making the 0.9V drive with a stable OFF state, enabling operation using only a single dry-cell (1.2V, termination voltage 0.9V) without requiring a step-up circuit, resulting in smaller, lighter sets with fewer external parts. Read more
Development of 2-Wavelength Laser Diodes with Significantly Lower Operating Current by ROHM
Laser guides are typically come in to types, one is the Loss Guides and the other is Real Index Guides. In spite of being simple and inexpensive, the Loss Guides have a tendency to absorb light within the device during laser oscillation besides showing unstable at high temperatures. On the other hand, Real Index Guides provide a stable operation with no light absorption, but their manufacturing process is complex and the production cost is high, limiting them to be only utilized as high output lasers. In response to this limitation, Rohm has succeeded in developing a highly reliable 2-wavelength laser targeted for low output applications such as DVD/CD playback by using an optimized, highly efficient Real Index Guide with no light absorption loss. Read more
Development of New ECOMOS Series of n-channel and p-channel MOSFET by ROHM
Rohm Semiconductor made an announcement on development of new ECOMOS series of n-channel and p-channel MOSFET capable of efficiently handling reduced supply voltages in portable devices. The company’s proprietary process has resulted in improved on-resistance at a very low gate drive voltage with addition of small footprint and low-profile packages requiring less board space, in meeting the requirement of emerging generation of portable electronic devices. Combined with improved electrical performance and Rohm’s unique packaging design makes the new MOSFETs both highly efficient with excellent power dissipation in addition to its small footprint. Read more
Development of World’s First Low-Resistance 300A single-Chip SiC Trench MOSFET by ROHM
The inherent deficiency of silicon semiconductor devices during power conversion has forced many designers to look for alternative semiconductor material. One such material is silicon carbide due to its superior material properties leading to increase in power conversion efficiency in these type of devices. Power conversion modules for such application as electric vehicles,power transmission and railroads require a minimum current capacity of approximately 600A which is currently possible through parallel connection of several large area Si chip capable of outputting 200A to 300A. In order to increase current is necessary to reduce ON resistance while at the same time increasing the surface area of the chip. Even though the SiC features an excellent ON resistance characteristics increasing the area results in a greater number of crystal defects which leads to device failure. Read more
Development of Industry’s thinnest package LED by ROHM
ROHM has released industry’s thinnest form factor LED package. the 3-color LEDs in SRGB series features a brightness of 1.8cd (white) offering a superior color uniformity plus the capability of color sorting performance in minimizing variations. The thinner form factor of onlt 0.6mm would allow the LED to be configured in a longer distance away from the object resulting in uniform lighting and color mixing. Read more
Release of Industry’s Thinnest LEDs by ROHM
Rohm now offers to the world industry’s thinnest LEDs. The PICOLED series by the company comes in a tiny 0.2mm thick package offering a high brightness. The newly developed PICOLED offers no brightness degradation in comparison to conventional products and at the same time achieves a reduction in mounting area and volume of 53% and 74% respectively over the standard 1608 size contributing to device miniaturization. Read more
Development of Industry’s Lowest Current Consumption CMOS OPAMPS by ROHM
ROHM recently made an announcement on development of a new addition to its extensive lineup of CMOS opamps. The new CMOS opamp is a single-channel type featuring a current consumption of only 0.00035mA optimized for signal amplification in compact, portable applications that require lower voltage operation and reduced current consumption. The product lineups also feature ground sense and full swing types capable of operating up to either +85 or +105 degrees Celsius. Furthermore, all models have 4kV ESD resistance for greater reliability. Read more
Development of Industry’s First Video Encoder IC with Fog-Reduction function by ROHM
Here is an interesting product by Rohm, where they recently announced the development of industry’s first video encoder IC capable of capturing video with clear visibility even in foggy conditions. The new BU6521KV is targeted to be used in surveillance cameras as well as automotive drive recorders. The development of BU6521KV was a direct response in growing demands for vehicle and surveillance cameras capable of increased visibility in outdoor setting and environments with rapidly changing conditions. The BU6521KV is equipped with unique hardware based Adaptive Image Enhancer (AIE) capable of providing real-time image correction that results in significant improvement in visibility in dark, harshly backlit, or unclear foggy conditions. Read more
Development of Industry’s First Monolithic Optical Proximity/Illumination Sensor with Touchless Motion Detection Capability by ROHM
Rohm made an announcement on development of industry’s first single-chip optical proximity/illumination sensor IC featuring touchless motion detection functionality targeted at electronic devices using touch panel such as smart phones and digital cameras. The new optical proximity sensor will be incorporated into these devices in order to turn the touch sensor and LCD panel ON or OFF when the phone is moved away from to and from user’s ear; it is also used for adjusting the brightness of the screen based on the ambient conditions resulting in longer battery life. The single chip BH1771GLC comes with two photodiode, one for detecting visible light and another one for infrared light detection providing the capability of proximity sensing from 1 to 10cm plus brightness from 0 to 65,000 lux. Read more
