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

Kyoto Kyoto (; Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and Kobe. , the ci ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. 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 (b ...

, 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 electrical 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 el ...

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

semiconductor A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glas ...

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. ROHM Kyoto station's front building

International expansion

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

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

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

and commenced the operation on 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 current primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A diode ...

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

transistors upright=1.4, gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch e ...

Integrated circuits

FeRAM Ferroelectric RAM (FeRAM, F-RAM or FRAM) is a random-access memory similar in construction to dynamic random-access memory, DRAM but using a ferroelectric layer instead of a dielectric layer to achieve non-volatility. FeRAM is one of a growing ...

and other LSI integrated circuits are designed and manufactured by the Lapis Semiconductor division of Rohm, formerly OKI Semiconductor, a division of

Oki Electric , commonly referred to as OKI, OKI Electric or the OKI Group, is a Japanese information and communications technology company, headquartered in Toranomon, Minato-ku, Tokyo and operating in over 120 countries around the world. OKI produced the fi ...

."ROHM Semi Announces Name Change of Subsidiary OKI Semi to Lapis Semiconductor"

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