Rohm
Encyclopedia
ROHM Semiconductor is a Japanese
electronic parts supplier based in Kyoto, Japan
. ROHM was incorporated as Toyo Electronics Industry Corporation by Kenichiro Sato (佐藤 研一郎) on September 17, 1958. The name was officially changed to Rohm in 1981 and then changed again to "ROHM Semiconductor" in January of 2009. Sato has been president of ROHM from its founding. When ROHM was established, resistor
s were its main product. Later, the company began manufacturing semiconductor
s. IC
's and discrete semiconductors now account for about 80% of ROHM's revenue. The name Rohm (which was originally written R.ohm) was derived from R, for resistors, the original product, plus ohm
, the unit of measure for resistance.
In october 2008, ROHM acquired the semiconductor business of OKI
.
In october 2009, ROHM acquired the american MEMS supplier Kionix
.
As of 2008, ROHM is among the Worldwide Top 20 Semiconductor Sales Leaders.
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
electronic parts supplier based in Kyoto, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
. ROHM was incorporated as Toyo Electronics Industry Corporation by Kenichiro Sato (佐藤 研一郎) on September 17, 1958. The name was officially changed to Rohm in 1981 and then changed again to "ROHM Semiconductor" in January of 2009. Sato has been president of ROHM from its founding. When ROHM was established, resistor
Resistor
A linear resistor is a linear, passive two-terminal electrical component that implements electrical resistance as a circuit element.The current through a resistor is in direct proportion to the voltage across the resistor's terminals. Thus, the ratio of the voltage applied across a resistor's...
s were its main product. Later, the company began manufacturing semiconductor
Semiconductor
A semiconductor is a material with electrical conductivity due to electron flow intermediate in magnitude between that of a conductor and an insulator. This means a conductivity roughly in the range of 103 to 10−8 siemens per centimeter...
s. IC
Integrated circuit
An integrated circuit or monolithic integrated circuit is an electronic circuit manufactured by the patterned diffusion of trace elements into the surface of a thin substrate of semiconductor material...
's and discrete semiconductors now account for about 80% of ROHM's revenue. The name Rohm (which was originally written R.ohm) was derived from R, for resistors, the original product, plus ohm
Ohm
The ohm is the SI unit of electrical resistance, named after German physicist Georg Simon Ohm.- Definition :The ohm is defined as a resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere,...
, the unit of measure for resistance.
In october 2008, ROHM acquired the semiconductor business of OKI
Oki
-Places:*Oki District, Shimane - the Oki Islands in Japan, formerly Oki Province*Oki, Fukuoka - a town in southern Japan*Oki Islands - a group of islands in the Sea of Japan*Oki Airport - The airport serving the Oki Islands...
.
In october 2009, ROHM acquired the american MEMS supplier Kionix
Kionix
Kionix, Inc. is a global MEMS inertial sensor manufacturer. Headquartered in Ithaca, New York, USA, Kionix is a wholly owned subsidiary of ROHM Co., Ltd. of Japan. Kionix developed high-aspect-ratio silicon micromachining based on research originally conducted at Cornell University...
.
As of 2008, ROHM is among the Worldwide Top 20 Semiconductor Sales Leaders.
Technology centers
Rohm has opened technology centers throughout the world.- 1990 - United States of America
- 1992 - Philippines
- 1997 - Yokohama
- 1999 - Kyoto
- 1999 - Hong Kong
- 2000 - Europe
- 2004 - Shanghai
- 2004 - Taiwan
- 2005 - Korea
- 2006 - Shenzhen