OHM develops and begins mass production of ultra-small air pressure sensors that achieve the highest level of detection accuracy (±20cm) and temperature characteristics in the industry

Factory direct 5050 yellow light LED 5050 yellow light 5050 yellow high quality high brightness

Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle

R OHM, a world-renowned semiconductor manufacturer, develops barometric pressure sensors for height and height difference detection for the growing market of smartphones, wearable devices and activity metering. "BM1383GLV" and began mass production.

"BM1383GLV" utilizes sensors accumulated by R OHM for many years With the development of high-precision MEMS (Micro Electro Mechanical Systems / Micro Electro Mechanical Systems) and low-power, low-noise integrated circuits, the industry's highest level of accuracy is achieved. - Relative height accuracy ± 20cm . In addition, R OHM's original high-low temperature correction algorithm is used to perform temperature correction inside the IC, so that high-precision air pressure information detection without considering the temperature influence can be realized. Not only that, as an air pressure sensor The industry's smallest size (2.5mm x 2.5mm x 0.95mm) is achieved, which greatly reduces the installation area.

This product has been sold in November 2014 (800 yen / piece: excluding tax), and has been put into mass production in May 2015 with a monthly capacity of 500,000. The production base of the previous process is the ROHM headquarters plant (Kyoto), and the production base of the later process is ROHM Electronics Philippines, Inc. (Philippines).

In the future, ROHM will continue to advance sensors Small, high-precision sensor indispensable for the network Product development.

※ROHM survey data as of December 11, 2014

In recent years, smartphones and wearable devices have begun to be equipped with air pressure sensors. The device can detect the planar position and the stereoscopic position like GPS, so as to increase the height detection function for indoor navigation and the height difference detection function of the activity amount.

Traditional air pressure sensor There is a problem that it is difficult to improve the accuracy of gas pressure detection at a low temperature. With the air pressure sensor The use is becoming more widespread, and the demand for more accurate air pressure detection and height detection functions is increasing.

For these topics, ROHM utilizes sensors that have been accumulated for many years. Developed technology to develop temperature compensation in the IC through an original correction algorithm, and developed an air pressure sensor that achieves the highest level of relative accuracy in the industry and can detect air pressure with high precision regardless of temperature changes. .

1. The industry's highest level of relative height accuracy ± 20cm

High-precision detection MEMS and low-power, high-precision A/D converters achieve the industry's highest level of relative height accuracy of ±20cm (relative air pressure accuracy ±0.024hPa).

2. High precision in a wide range from high temperature to low temperature

Air pressure sensor There is a problem that it is difficult to improve the detection accuracy at low temperatures, and ROHM uses an original high-low temperature correction algorithm to perform temperature correction inside the IC to enable high-precision air pressure detection at low temperatures. At the same time, there is no need to equip the external microcontroller with temperature correction, which is very helpful to reduce the design burden.

3. Industry's smallest, very small package

Utilizing sensors that have accumulated over the years The development technology has succeeded in miniaturizing the sensing module and the computing module. Thus as an air pressure sensor with built-in temperature correction function Achieve the industry's smallest level (2.5mm × 2.5mm × 0.95mm) package size.

Height detection of height detection activity meters and wearable devices for indoor navigation such as smartphones and tablets

MEMS (Micro Electro Mechanical Systems / MEMS)

MEMS refers to mechanical parts, sensors Components integrated on one PCB board, such as an actuator (drive unit).

In the semiconductor industry, it is generally used for acceleration sensors. And gyro sensor Etc., called the IT device that supports smartphones and the sensors of the high-profile smart society. A technology that is indispensable to the Internet.

A/D converter

From sensor The information obtained is an analog signal, located in the sensor The calculation unit of the latter stage of the microcontroller or the like needs to input a digital signal that can be calculated at a high speed. The A/D converter is a circuit having a function of converting an analog signal into a digital signal.