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ROHM’s PicoLED™

Our PicoLED features the same level of brightness as conventional chip LEDs, but in a package size 53% smaller in area and with 74% less volume than standard 0603-sized products. This makes the PicoLED ideal for use in high-density applications.

Features:
-Ultra compact (0.04in x 0.02in)
- 53% smaller area and 74% less volume than conventional 0603 sized units.
-High-luminosity types offered in a range of colors: red, orange, yellow, green, blue, and white.
-All light-emitting elements are of the high reliability four-element (InGaAlP) or high luminosity (InGaN) type ensuring continuous, long-term, reliable operation.

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Overview

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History
1954 - 1969
1954 Toyo Electronics Industry established.
Carbon film resistors developed and marketed.
1958 Toyo Electronics Industry Corporation.
1962 In-house production of automatic resistor assembly machine inaugurated.
1963 Metal-firm resistors developed and marketed.
1965 Quality control program introduced.
Published "Visible Music History" (record of all volumes)
1966 In-house Standardization Committee organized.
ROHM WAKO CO., LTD. established.
1967 Transistors and switching diode developed and marketed.
1968 Completed production of diode arrays and diode matrices.
1969 Began development of ICs.
ROHM APOLLO CO., LTD. established.
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1970 - 1979
1970 Computers for processing business data introduced.
ROHM LOGISTEC CO., LTD. established.
Established U.S. subsidiary company in California.
Published "History of Musical Instruments" (record of all volumes)
1971 Started research and development of integrated circuits (ICs) in Silicon Valley.
ROHM ELECTRICS GMBH established.
Transistor developed and marketed.
1972 ROHM KOREA CORPORATION established.
1973 LEDs and network resistors developed and marketed.
1974 Thermal printheads developed and marketed.
ROHM ELECTRICS (H.K.) CO., LTD. established.
1976 Square-plante chip resistors developed and marketed.
1977 Rectifying diodes developed and marketed.
1979 Corporate trademark is changed from R.ohm to ROHM.
ROHM ELECTRICS ASIA PTE. LTD. (RES DIVISION) established.
Began "ROHM's Diary of Kyoto Natural History" for company public relations as a newspaper column.
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1980 - 1989
1980 Zener diodes developed and marketed.
1981 Registered company name is changed from Toyo Electronics Industry Corporation to ROHM CO., LTD.
Began development of MOS ICs.
ROHM FUKUOKA CO., LTD. established.
Published "Asian Music" (recorded tapes of all volumes)
1982 Semiconductor Research Center is completed.
Digital transistors developed and marketed.
1983 Listed on the Second Section of the Osaka Security Exchange.
Band switching diodes developed and marketed.
1984 First in the world to succeed in the practical industrial use of laser diodes with MBE methodology.
ROHM AMAGI CO., LTD. established.
1985 4-bit and 8-bit microcontrollers using original CPUs developed.
1986 Listed on the First Section of the Osaka Stock Exchange.
Research and Development Center opened (presently LSI Development Center).
Memory ICs developed and marketed.
Capacitors marketed.
Published public relations magazine "ROHM's Diary of Kyoto Natural History."
1987 A manufacturing plant is established in Thailand (presently RIST).
ROHM ELECTRONICS TAIWAN CO., LTD. established.
1988 Obtained basic patent of flash memory in the USA.
ROHM MECHATECH CO., LTD. established.
NARITA GIKEN CO., LTD. established.
1989 Listed on the First Section of the Tokyo Stock Exchange.
Received PM award (TPM)
LSI Research Center opened.
Liquid crystal process technology established and products marketed.
A manufacturing plant is established in Philippines (presently REPI).
ROHM-WAKO ELECTRONICS (MALAYSIA) SDN.BHD. established.
ROHM ELECTRONICS (U.K.) LIMITED established.
Hosted "ROHM's Music Festival with Play Bach."
Published public relations magazine "ROHM's Diary of Kyoto Natural History II."
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1990 - 1999
1990 America Technology Center opened.
Began sales of LED message boards.
ROHM APOLLO DEVICE CO., LTD. established.
1991 Second Research and Development Center opened.
Established ROHM Music Foundation.
Hosted "Young Artist Concert."
1992 Completely abolished use of specific-fluorocarbons (all companies in ROHM Group)
MTP microcontroller with built-in flash memory developed.
Hosted "Contemporary & Classics"
1993 Developed large size LCD public displays with a distinctive wide view angle.
ROHM ELECTRONICS DALIAN CO., LTD. established.
A manufacturing plant is established in Tianjin, China (presently RSC).
ROHM ELECTRONICS (MALAYSIA) SDN. BHD. established.
ROHM MECHATECH PHILIPPINES, INC. established.
Hosted "Kyoto International Music Students Festival" (held annually).
Hosted "Keith Jarret plays Mozart."
1994 Obtained ISO9001 certification.
Developed a single-chip LSI for use in spread spectrum communications, the next generation of wireless transfer.
Co-sponsored "The New York Trio."
Began "ROHM's Diary of Science of the tales of old Japan" for company P.R as a newspaper column.
1995 Second LSI Research Center opened.
Jointly developed a 100,000 gate FPGA using flash technology together with the Zycad Corporation of the United States.
Developed IC with a built-in modulation-demodulation circuitry for IrDA infrared data communication.
Hosted "ROHM Lyric Selection Mari Kumamoto concert" (held annually).
Co-sponsored "National Paris Orchestra."
Published "ROHM's Diary of Kyoto Natural History (Sound Report Edition)" CD-ROM.
1996 ROHM WAKO DEVICE CO., LTD established
ROHM ELECTRONICS KOREA CORPORATION established.
ROHM ELECTRONICS (PHILIPPINES) SALES CORPORATION established.
Co-sponsored "Scala Philharmonic Orchestra."
1997 Yokohama Technology Center opened.
Started mass production of red laser diodes for DVDs.
ROHM ELECTRONICS (THAILAND) CO., LTD. established.
ROHM ELECTRONICS (FRANCE) S.A.S. established.
Co-sponsored "Biwako Mainichi Marathon."
Co-sponsored "Moscow Broadcast Symphony Orchestra."
Co-sponsored "Prague Symphony Orchestra."
Published "ROHM's Diary of Kyoto Natural History (Light Report Edition)" CD-ROM.
1998 Obtained ISO14001 Environmental Management System Certification.
VLSI Research Center opened.
Developed ROHM's unique Dual-Cell system EEPROM.
Developed highly reliable Schottky barrier diodes with both a low VF and a low IR.
Co-sponsored "Inter Prefectural Men? Ekiden."
Co-sponsored "Super Trio: Ashkenazy, Zukerman, Harell."
Co-sponsored "New Japan Philharmonic Special" concert, conducted by Seiji Ozawa.
Began "ROHM's Diary of Science of the tales" for company P.R as a newspaper column.
1999 Kyoto Technology Center opened.
LSI Development Center opened.
HONG KONG TECHNOLOGY CENTER opened.
Developed an IC for mobile phones.
Increased growth in development of the world's finest quality ZnO single crystal film in cooperation with Electrotechnical Laboratory (ETL).
ROHM HAMAMATSU CO., LTD. established.
ROHM ELECTRONICS (SHANGHAI) CO., LTD. established.
Co-sponsored "Kyoto City Half Marathon."
Co-sponsored "St. Petersburg Stat Philharmony Orchestra."
Co-sponsored "Alfred Brendel Piano Recital."
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2000 - 2007
2000 Europe Technology Center opened.
Developed new clock generator IC with the highest range of S/N and low jitter for DVD.
Developed REAL SOCKET™ a revolutionary concept in system LSI design technology.
ROHM SEMICONDUCTOR(CHINA)CO.,LTD. established.
Co-sponsored "Seiji Ozawa Opera Project."
Co-sponsored "The Opening Concert of Autumn Kyoto Music Festival."
2001 ROHM CO., LTD. (Shinyokohama) opened.
Developed the technology (S!PWM×2) of silent disc driver for CD and DVD drives.
Developed high-power 180-mW laser diode as an optimum solution for ·32 and faster CD-RW drives.
ROHM APOLLO SEMICONDUCTOR PHILIPPINES, INC. established.
Started forestation project in Australia named "ROHM Forest."
Contribution for Ritsumeikan University ROHM Plaza.
2002 Optical Device Research Center opened.
2003 LSI Test Technology Center opened.
Developed LVDS interface LSI for flat panel display.
ROHM ELECTRONICS TRADING (DALIAN) CO., LTD. established.
ROHM TSUKUBA CO., LTD. established.
Contribution for Doshisha ROHM Plaza.
Co-sponsored "Kyoto Student Festival."
2004 Shanghai Technology Center opened.
Taiwan Technology Center opened.
Developed REAL PLATFORM, a new platform design environment for system LSI.
Started the full-scale operation of the 300mm wafer process line.
Started mass production of the 130nm CMOS LSIs.
2005 Korea Technology Center opened.
Thermal printheads built with a proprietary Step-Free structure was developed. As a result, this Step-Free structure demonstrated high durability.
A thyristor was developed and mass production began.
A ROHM Plaza research facility was donated to Kyoto University.
Trees were planted around the circumference of the head office.
Co-sponsored "Seiji Ozawa Opera Project" in China.
2006 Shenzhen Technology Center opened.
Nagoya Design Center opened.
The world's highest performance silicon carbide (SiC) FET with a high voltage of 900V and low ON resistance of 3.1.Ω/cm² was developed.
ROHM INTEGRATED SYSTEMS (THAILAND) CO., LTD. established.
ROHM ELECTRONICS (SHENZHEN) CO., LTD. established.
Hosted "ROHM Music Foundation, Music Seminar Member's Chamber Music Concert 2006"
Co-sponsored "HUNGARIAN NATIONAL PHILHARMONIC ORCHESTRA"
2007 ISO/IEC 17025 Accreditation to Laboratory.
Developed an ultra-compact LED "PICOLEDTM[picoled]" featuring both the smallest volume and area in the world.
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ROHM Co. Ltd. was established in Kyoto, Japan, in 1958. ROHM designs and manufactures semiconductors, integrated circuits and other electronic components. These components find a home in the dynamic and ever-growing wireless, computer, automotive and consumer electronics markets. Some of the most innovative equipment and devices use ROHM products.

ROHM’s presence in the North American market continues to expand with a logistic headquarters in San Diego, California, a design center in San Jose, California, a QA Center in Novi, Michigan, a sales office in Guadalajara, Mexico and a sales network that covers marketing, sales, and engineering support for the North and South American clients from Canada to Brazil. In addition to a direct sales force, ROHM enjoys the collaboration of several sales-representative organizations and two of the world’s leading electronics distributors, Future Electronics and DigiKey.

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