(styled as ROHM) is a Japanese electronic parts manufacturer based in

Kyoto Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it t ...

, Japan. Rohm was incorporated as Toyo Electronics Industry Corporation by Kenichiro Sato (佐藤研一郎) on September 17, 1958. The company was originally called R.ohm, which was derived from R for resistors, the original product, plus

ohm Ohm (symbol Ω) is a unit of electrical resistance named after Georg Ohm. Ohm or OHM may also refer to: People * Georg Ohm (1789–1854), German physicist and namesake of the term ''ohm'' * Germán Ohm (born 1936), Mexican boxer * Jörg Ohm (1 ...

, the unit of measure for resistance. The name of the company was officially changed to Rohm in 1979 and then changed again to Rohm Semiconductor in January 2009. When Rohm was established,

resistor A resistor is a passive two-terminal electronic component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active e ...

s were its main product. Later, the company began manufacturing

semiconductor A semiconductor is a material with electrical conductivity between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (" doping") to its crystal structure. When two regions with different doping level ...

s. ICs and discrete semiconductors now account for about 80% of Rohm's revenue. Through 2012, Rohm was among the top 20 semiconductor sales leaders.

International expansion

In 2016, Rohm started the construction of their production facility in

Kelantan Kelantan (; Kelantan-Pattani Malay, Kelantanese Malay: ''Klate''; ) is a state in Malaysia. The capital, Kota Bharu, includes the royal seat of Kubang Kerian. The honorific, honorific name of the state is ''Darul Naim'' ("The Blissful Abode"). ...

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

and commenced the operation in April 2017. A few years later in 2022, Rohm expanded their facility by approximately 1.5 times bigger with the plan to start operating in 2023. The original plant mainly focuses on the production of discrete semiconductors such as

diodes A diode is a two- terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction and high (ideally infinite) resistance in the other. ...

while the expanded facility will be focusing on the production of analog LSIs and

transistors A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electric power, power. It is one of the basic building blocks of modern electronics. It is composed of semicondu ...

Products

Rohm produces a range of products such as power stage ICs aimed at power supplies, CMOS operational amplifier used to boost sensor-signals as well as

Hall effect sensor A Hall effect sensor (also known as a Hall sensor or Hall probe) is any sensor incorporating one or more Hall elements, each of which produces a voltage proportional to one axial component of the Magnetic field#The B-field, magnetic field vector ...

s. The company also sells DC to DC controller ICs, current sensor ICs and AC to DC converters. FeRAM and other LSI integrated circuits are designed and

manufactured Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of the secondary sector of the economy. The term may refer to a ...

by the Lapis Semiconductor division of Rohm, formerly OKI Semiconductor, a division of Oki Electric.

References

External links

* Companies listed on the Tokyo Stock Exchange Companies listed on the Osaka Exchange Electronics companies of Japan Equipment semiconductor companies Manufacturing companies based in Kyoto Electronics companies established in 1958 1958 establishments in Japan Japanese brands {{tech-company-stub