Power Devices Business Briefing

- Providing crucial energy-saving devices

as a global top-level power devices manufacturer -

Nov. 22, 2017

Toru Sanada Executive Officer

In charge of Semiconductor & Device

© Mitsubishi Electric Corporation

Contents

  1. Introduction

  2. Positioning and Features of Business

  3. Business Environment

  4. Growth Targets

  5. Differentiation Strategy

  6. Business Strategy by Segment

  7. Manufacturing Strategy

  8. Summary

    1

    © Mitsubishi Electric Corporation

    1. Introduction

    2. Embodiment of the Corporate Mission

      Corporate Mission

      The Mitsubishi Electric Group will continually improve its technologies and services by applying creativity to all aspects of its business.

      By doing so, we enhance the quality of life in our society.

      Contemporary Social Issues

      Environmental issues Resource/ Energy issues

      Initiatives of Mitsubishi Electric Group

      Global Development of Products, Systems, and Services

      Make Strong Businesses Stronger

      Technology Synergies/ Business Synergies

      Realize

      a Sustainable Society

      Provide

      Safety, Security, and Comfort

      Embodiment of the Corporate Mission in the Context of the Current Environment

      Growth Targets to be Achieved by FY2020

      Net Sales 5 trillion yen or more OPM 8% or more

      "Global, Leading Green Company"

      Contribute to the realization of a prosperous society

      2

      © Mitsubishi Electric Corporation

      1. Introduction

        Embodiment of the Power device Business Mission

        Corporate Mission

        The Mitsubishi Electric Group will continually improve its technologies and services by applying creativity to all aspects of its business.

        By doing so, we enhance the quality of life in our society.

        Contemporary Social Issues

        Environmental issues Resource/ Energy issues

        Initiatives of Mitsubishi Electric Group

        Global Development of Products, Systems, and Services

        Make Strong Businesses Stronger

        Technology Synergies/ Business Synergies

        Realize

        a Sustainable Society

        Provide

        Safety, Security, and Comfort

        Embodiment of the Corporate Mission in the Context of the Current Environment

        Growth Targets to be Achieved by FY2022

        Net Sales 200 billion yen OPM 10%

        "Global, Leading Green Company"

        Contribute to the realization of a prosperous society

        3

        © Mitsubishi Electric Corporation

      2. Positioning and Features of Business

      Power devices are crucial for low-carbon societies

      • Semiconductor devices that efficiently control electric power by converting electricity from DC to AC, DC to AC, or by raising or lowering voltage

      • Key energy saving devices used in a wide range of sectors including power control for industrial machinery, traction, electric vehicles (EV*), home

      appliances, photovoltaic power generation, wind power generation, motor control, and more.

      Motor driving inverter Photovoltaic power generation power conditioner

      Voltage

      Voltage

      DCAC

      Voltage

      Voltage

      DCAC

      Time

      Battery

      Power electronics device

      Time

      Motor

      Time

      Solar cell

      Power electronics device

      Time

      Air conditioner & home appliance

      Power Devices

      * EV Electric Vehicle 4

      © Mitsubishi Electric Corporation

      2. Positioning and Features of Business

      Positioned as a business that to drive corporate growth

      Energy & Electric Systems

      Power Systems

      Power generation systems, Transmission & distribution systems, Power distribution systems,

      Particle therapy systems, etc. Transportation Systems Inverters, main motors and

      air conditioning systems for railcars, Train Vision, Train control and management systems,

      Railcar operation management systems, Signaling systems, etc.

      Building Systems

      Elevators, Escalators,

      Building management systems, etc.

      Public Systems

      Water treatment systems, Disaster prevention systems, etc.

      Industrial Automation Systems

      Factory Automation (FA) Systems

      PLCs, AC servomotors,

      CNCs, Industrial robots,

      Laser processing machines, etc. Automotive Equipment Starters, Alternators, Car multimedia, EPS system products,

      Electric powertrain system, etc.

      1 SiCSilicon carbide 2 IGBTInsulated gate bipolar transistor 3 GaNGallium nitride

      Information & Communication Systems

      Space Systems

      Satellites, Ground systems for satellite control, etc.

      Defense Systems

      Radar equipment, Antennas, etc. Communication Systems Optical, wireless and satellite communications systems, etc.

      Video Monitoring Systems

      Network camera systems

      IT Solution

      Electronic Devices

      Power Devices

      SiC1 modules, IGBT2 modules, etc.

      High Frequency and Optical Devices

      High frequency devices (GaN3

      and GaAs4), Optical devices, etc.

      TFT5 LCD Modules

      Home Appliances

      Air-Conditioning & Refrigeration Systems

      Room and package air conditioners,

      Multiple AC units for buildings, Lossnay ventilation systems, Chillers, etc.

      Housing Equipment

      Smart appliances, Lighting, HEMS, etc.

      Kitchen and Other Household

      4 GaAsGallium arsenide 5 TFTThin film transistor

      Appliances

      5

      © Mitsubishi Electric Corporation

      2. Positioning and Features of Business

      Strengths are in-house business and technology synergies, and global innovation

      Mitsubishi Electric

      Industrial Automation Systems

      Energy & Electric Systems Home Appliances

      Business segments

      Technology/business synergies (make strong businesses even stronger)

      Electronic devices (power devices)

      Advanced Technology R&D Center

      Information Technology R&D Center

      Open & global innovation

      Government & foundations

      (national projects)

      Standardizing body forums, etc.

      Universities

      Companies

      Research-related independent administrative agencies

      (AIST, etc.)

      6

      © Mitsubishi Electric Corporation

      2. Positioning and Features of Business

      Our Focus : IGBTs and Modules

      IGBT and MOSFET*

      Discrete

      100M

      Device output capacity [VA]

      10 M

      Application range for power devices

      IGBT

      Diode

      1M

      100k

      10 k

      IGBT

      IGBT module

      1k

      100

      1k

      MOSFET

      10 k 100 k 1 M

      Compound power devices with multiple IGBTs and diodes in a

      Switching frequency [Hz]

      single package

      * MOSFETMetal oxide semiconductor field effect transistor

      7

      © Mitsubishi Electric Corporation

      2. Positioning and Features of Business

      Focus on maintaining world's top share1 in IPM2

      Drive circuit

      Control IC

      IGBT module

      Package Case type

      Short-circuit- monitoring Protection circuit

      Control IC

      IPM

      Package Case type

      Drive circuit

      Short-circuit- monitoring Protection circuit

      DIP type

      (Dual In-line Package)

      1 As of November 2017, surveyed by Mitsubishi Electric 2 IPM: Intelligent power module

      8

      © Mitsubishi Electric Corporation

      1. Positioning and Features of Business

        Focused on Four Segments : Meeting Diverse Needs

        Application segment

        Application examples

        IGBT module Case type

        General HV1

        IPM

        Case type DIPtype

        Discrete

        Home appliances

        Air conditioners

        Washing

        Fan motors

        machinesRefrigerators

        Inverters

        Industry (Incl. renewable energy)

        AC motors Photovoltaic power

        generation

        Robots

        Traction/ Electric power

        Traction

        Power conditioner

        Wind power generation

        DC power transmission

        Automotive

        EVHEV2

        1 HV: High voltage 2 HEV: Hybrid electric vehicle

        9

        © Mitsubishi Electric Corporation

      2. Business Environment

        Annual market growth rate of about 6%

        (US$ million)

        Global market scale by IGBT module segment (Mitsubishi Electric estimate)

        Traction /Electric power

        Industry

        (incl. renewable energy)

        Automobile

        Home appliances

        FY2016 FY2017 FY2018 FY2019 FY2020 FY2021 FY2022

        Background of power devices market expansion

        Home appliances: Growth due to expansion of market for major appliances (air conditioners, refrigerators, washing machines, etc.) and progress in shift to inverters

        Automotive: High growth due to accelerated shift to EVs due to more stringent environmental regulations

        Industry: Expansion, mainly in FA market, due to investment in factory automation, power efficiency improvements, and

        (incl. renewable energy)

        strengthened environmental regulations for motors (incl. renewable energy). Growth will accompany expansion of renewable energy (solar and wind) markets around the world.

        Traction/Electric power : Moderate growth in electric railway rolling stock market in line with population growth, urbanization, etc.

        10

        © Mitsubishi Electric Corporation

      3. Growth Targets

        FY2022: Net sales of 200 billion yen and OPM of 10%

        Power devices business

        (100 million yen])

        sales targets

        130 billion yen

        200 billion yen

        Traction/Electric power Industry

        (incl. renewable energy)

        Automotive

        Home appliances

        FY2016 FY2017 FY2022

        Growth strategy : 10% growth in focus segments (exceed market growth of 6%)

        Home appliances: Enhance product lineup balanced with market demands (higher functionality, lower power loss, and lower costs), aiming to become the undisputed market leader

        Automotive: Capture opportunities in the shift to electric-power automobiles and grow strongly worldwide Industry: Introduce competitive products to increase share in major markets for power device business

        (incl. renewable energy)

        Traction/Electric power : Pursue greater added value in infrastructure segment where growth is not high but demands for quality and reliability are high, to maintain the position as a top supplier

        11

        © Mitsubishi Electric Corporation

      4. Differentiation Strategy

      Developing high-efficiency power devices (chip)s and packages that match market needs are inseparable for differentiation.

      Low cost

      Home appliances Industry / Renewable energy

      Large

      Traction/DC power transmission

      • Smaller packages

      • Less peripheral circuits

      • Lower losses for energy savings

      • Easy installation

      • Industry-standard package

      • Incorporation of peripheral functions

        Power capacity

        SiC

        SiC

        EV, etc.

        Miniaturization

        Increased capacity

        Next generation

        Automotive

        • Miniaturization & High power density

        • Incorporation of cooling functions

        • Operation in high-temp environments

        Si*

        * Si Silicon

        Carrier frequency

        SiC

        Switching power source, etc.

        High

        Integrated water cooler

        New structures

        Package development

        Miniaturization

        Traction / Electric power

        • Large current

        • High reliability

        • Industry-standard packages

        Chip development

        High performance

        Si: Balance performance and cost

        • Low power loss

        • Wide application range

        • High reliability

          SiC: High performance for value- added applications

        • Lower power loss (70% less than Si)

        • High-frequency switching (100kHz class)

        • High temp. operation (200 ºC class)

      • High-current-density packages

      • High-heat-dissipation substrates

        Longer life

      • Low-stress structure at heat cycle

      • Low-thermal-resistance materials (bonding materials & encapsulants)

        Higher functionality

      • Integrated radiators

      • Incorporation of peripheral circuits 12

      © Mitsubishi Electric Corporation

      1. Differentiation Strategy: Si IGBT chips

        Evolution of Si IGBT chips

        IGBT chip (1200V industrial use)

        6th generation 7th generation Next generation

        3rd gen.

        Optimization of structure

        Make ultra-thin (Ultra-thin device (higher performance

        & easier to use)

        Switching loss

        4th gen.

        5th gen.

        6th gen.

        7th gen.

        Next gen.

        Electrification loss

        Combine IGBT and diode onto

        one chip to improve manufacturability and module power density

        (Merge functions)

        Make ultra-thin (Ultra-thin device

        RC-IGBT*

        (higher performance

        Next-

        & easier to use)

        generation RC-IGBT

        * RC-IGBT Reverse conducting-IGBT

        13

        © Mitsubishi Electric Corporation

        5. Differentiation Strategy: SiC

        Become No.1 in many SiC applications1

        • Pursue advanced achievements through synergy among strong power electronics business units within company

        • Introduce SiC power modules from the start, applying SiC to product groups for all applications

        Equipped for first time in the world

        Commercialized SiC inverter for use in railcars

        (October 2011)

        Traction

        Equipped for first time in the world

        Installs Railcar Traction System with All-SiC Power Modules on Shinkansen Bullet Trains

        Equipped for first time in the world

        Industry

        gy

        Automotive

        Launched Computer numerical control (CNC) drive unit equipped

        Equipped for first time in the world

        Under Development

        Develops SiC for application in elevator control systems

        (Announced in February 2013)

        (Announced in June 2015)

        with SiC power module

        (Released in December 2012)

        World smallest

        Under Development

        Industry best

        Ener

        Develops world's smallest SiC Inverter for HEVs (Announced in March 2017)

        Industry

        Home Appliances

        Equipped for first time in industry

        Verified highest power conversion efficiency for photovoltaic power conditioner (domestic industry) (Announced in January 2011)

        best

        Launched power conditioner for photovoltaic equipped with full SiC-IPM

        (Released in January 2015)

        Equipped for first time in the world

        Launched "Kirigamine" inverter air conditioner (Released in October 2010)

        Launched package air conditioners with full SiC DIPIPM2 in Japan (Released in May 2016)

        Development of these modules and applications has been partially supported by Japan's Ministry of Economy Trade and Industry (METI) and New Energy and Industrial Technology Development Organization (NEDO).

        1 The year and month listed are based on press releases or information released during the product launch month in Japan. 2 DIPIPM: Registered trademark of Mitsubishi Electric Corporation

        14

        © Mitsubishi Electric Corporation

        1. Differentiation Strategy: SiC chips

          Continuous development of SiC to lower costs and improve performance

          Features of SiC chips

          Item Si SiC Customer benefits Combined uses

          Power loss 1 1/3 High efficiency, higher output and

          energy savings

          EVs, air conditioner, railways, and DC power transmission

          High temp. operation 175 Tj>200 Reduced heat-dissipation fins EVs and special inverters

          High-speed switch 30KHz Fc>100KHz High efficiency and smaller size Power sources andnon-contact

          power supply

          Advancement of SiC chips

          • Trench MOSFET Smaller size/Low loss/High

            reliability

            • Gate placed on wall of trench formed downward and cell density improved/refined with aim of

              MOSFET structure comparison

              Source electrode

              Source electrode

              Gate electrode

              n-type source

              Gate electrode

              Trench

              p-type well

              n-type drift layer

              lowest loss in the industry

            • Original field alleviating structure employed to

              n-type drift layer

              n-type SiC substrate

              Trench electrode

              n-type SiC substrate

              Trench electrode

              improve reliability

          • MOSFET with built-in SBD* Smaller size/Low cost

            • Mitsubishi Electric original technology where chip is miniaturized by building SBD in to MOS Effective especially for high-voltage devices and has approx. 60% surface area for 3.3kV

          Flat MOSFET Trench MOSFET

          MOSFET with built-in SBD

          Chip surface area reduction by building in SBD (image)

          Forward-looking R&D is pursuing new-material power devices, such as vertical GaN and gallium oxide,

          in addition to SiC-IGBT (current MOSFET)

          • SBD Schottky barrier diode

            15

            © Mitsubishi Electric Corporation

        2. Business Strategy by Segment : Home appliances

          © Mitsubishi Electric Corporation

          Growth strategy

          Enhance product lineup balanced with market demands (higher functionality, lower power loss, and lower costs) with the goal of being the undisputed market leader

          DIPIPM utilizing transfer mold technology

          High-quality and diverse product lineup

          • Capture more share where inverter use is expected to grow:

            Washing machines

            (2017: 19% 2022: 62%)

            Refrigerators

            (2017: 18% 2022: 40%)

            Our strengths

            and features

            World's top production

            Lower costs

            • Enter small-capacity fan-motor market

          Lower costs

          Application technology and

          customer support capability for top share in segment

          capacity and stable supply support capabilities

          • For existing RAC/PAC*, gradually develop new markets in developing economies where switch to inverters is progressing

            ( roughly double from 2017 to 2022)

            Lower costs

          • Introduce SiC products in luxury device market

            Energy savings and higher functionality

            16

            *RAC Room air conditioner, PAC: Package air conditioner © Mitsubishi Electric Corporation

            6. Business Strategy by Segment: Home appliances

            Product strategy

            • Higher functionality: More products equipped with SiC and reduce loss

            • Lower costs: Apply RC-IGBT chips and low-cost packages

          High

          Luxury room air conditioners

          price

          Full SiC DIPIPM

          Hybrid

          Pursue energy saving

          While balancing costs , enhance product lineup to

          SiC DIPIPM

          SJMOS1 equipped ultracompact DIPIPM

          Mainstream room air conditioners

          Ultracompact DIPIPM

          become dominant leader

          Pursue lower costs

          Strategic products

          RC-IGBT equipped SLIMDIP2

          Washing machines & Refrigerators

          Low price

          RC-IGBT equipped Small-capacity IPM

          Small volume (luxury products) High volume (mainstream products)

          © Mitsubishi Electric Corporation

          1 SJMOS: Super Junction MOSFET 2 SLIMDIP: Registered trademark of Mitsubishi Electric Corporation 17

          6. Business Strategy by Segment: Automotive

          Ability to offer diverse solutions according to customer demands (chips & modules)

          Our strengths and features

          High quality, strong

          © Mitsubishi Electric Corporation

          Growth strategy

          Capture opportunities in shift to electric- power automobiles and grow strongly worldwide

          • Shift focus from Japan to overseas markets

          • Shift development and delivery from customized to standardized products

          • Deploy standardized modules (J/J1 series) globally

          technical application Support, and customer- support abilities

          Abundant know-how and goodmarket

          performance from start of EV market

          11 million

          • Raise chip performance

          Si: Raise IGBT and RC-IGBT

          Cumulative xEV* equipped with our power devices

          units

          performance

          SiC Shift to 6-inch and trench type

          © Mitsubishi Electric Corporation

          * xEV: General term for electric vehicles 18

          6. Business Strategy by Segment: Automotive

          Standard module product strategy

          • Expand product lineup according to market demands (high voltage, large current)

          High voltage

          lineup

          1200V

          650V

          Advantages of J1 series

          • Compact (footprint approx.

            30% smaller than other makes)1

          • Light weight (approx. 30% lighter than other makes)1

          • High heat dissipation

          • High efficiency

          J series (transfer mold)

          For small-capacity (J series)

          J1 series

          For medium-capacity (J1A series)

          Large current

          For large- capacity (J1B series)

          Further performance increase with SiC- equipped products

          Motor

          capacity [kW] 10 20 30 40 50 60 70 80 90 150

          Target xEV models

          ULV2

          Mild Hybrid (except 48V)

          PHEV3 BEV4 / FCEV5

          Full Hybrid

          1 As of November 2017: Mitsubishi Electric

          2 Ultra-light vehicles 3 Plug-in hybrid electric vehicles 4 Electric vehicles 5 Fuel-cell electric vehicle

          19

          © Mitsubishi Electric Corporation

          6. Business Strategy by Segment: Industry, incl. Renewable Energy

          Know-how accumulated serving Japanese users over many decades

          and market performance

          Our strengths and features

          Products offering

          © Mitsubishi Electric Corporation

          Growth strategy

          Increase share in major markets for power devices business with competitive products

          • Focus on business in European and Chinese markets while maintaining high market share in Japan

          • Focus on energy storage, charging, and EV buses as new markets

          • Increased strategic original packages in addition to industrial-standard

          competitive

          advantages based on 7th generation chips and new package technologies

          High quality, strong

          technical application support and customer support abilities

          packages

          • Increased intelligent products (for IoT*)

          • Develop products and synergies with Vincotech (German)

          * IoT Internet of Things 20

          © Mitsubishi Electric Corporation

          Product strategy

        3. Business Strategy by Segment : Industry , incl. Renewable Energy

          • Medium- and large-capacity products: Enhance industry-standard packages and increase capacities

          • Small-capacity products: Enhance lineup of DIPIPM original packages (No.1 among home appliances ) and pursue lower costs and higher quality

          • Transfer medium- and large-capacity technologies to Vincotech to capture custom products market

            Current capacity

            Oriented to custom products

            (Small scale)

            (Large)

            Vincotech & Mitsubishi Electric joint modules

            (new products)

            Vincotech modules

            Mitsubishi Electric IGBT modules and IPM (industry-standard packages)

            Mitsubishi Electric original packages (DIPIPM for industry)

            Future lineup enhancement (Products under development, etc.)

            Existing lineup (Mass produced products)

            Oriented to general purpose products

            (Large scale)

            (Small)

            21

            © Mitsubishi Electric Corporation

            6. Business Strategy by Segment: Traction and Electric power

            High reliability for infrastructure

            Our strengths and features

            A1-22

            © Mitsubishi Electric Corporation

            Growth strategy

            Pursue greater added value in infrastructure segment, where growth is not high but high quality/reliability are demanded, to maintain position as a top supplier

            • Deploy products that utilize latest Si technologies (X series: equipped with first 7th generation 8-inch chips and employs latest packaging technology)

            • Deploy high-voltage, low-loss SiC module products (3.3kV and 1.7kV)

              Unmatched record and know-how in high- voltage segment

              Top record* in mass production of high-voltage SiC module products

          • Continue to develop Chinese and Indian markets, where solid demand is expected for railways.

          • Focus on DC power transmission, where future expansion is anticipated in Europe, North America and China

            * As of November 2017, surveyed by Mitsubishi Electric

            22

            © Mitsubishi Electric Corporation

            1. Business Strategy by Segment: Traction/Electric power

              Product strategy

              • Expand applications in traction and electric-power market by introducing products with current densities exceeding those of other makes

            Current density [A/cm2]

            SiC-equipped products

            12

            X series

            (LV100 and HV100 package)

            9

            Railway

            Traction

            6

            R series

            Electric power

            X series (Standard package)

            H series

            3

            FY2017 FY2022

            23

            © Mitsubishi Electric Corporation

            1. Production Strategy : Wafer Production

            • Maintain highly added-value processes that are key to differentiation at company factories and continue to make investments (Si wafer back side processing and SiC wafers)

            • Maximize production subcontracting (fabrication outsourcing) for Si wafer surface processing involving mainly general technologies and expand capacity while minimizing investments

            • Utilize IoT and promote thorough productivity improvements

            • Promote transition to multiple production lines to fortify BCP*

              Surface processing

              Kumamoto (Koshi City): Mother factory Wafer-surface and back-side processing (including SiC)

              Hyogo (Itami City) Si-wafer back-side processing

              Wafer process

              Back side processing*

              *Process specific to power wafers where electrodes, etc. are formed after grinding back side of wafer

              Fukuoka (Fukuoka City): SiC wafer (4-inch) surface and back- side processing

              Japan production outsourcing

              Si-wafer surface processing

              Overseas production outsourcing

              (to be decided) Si-wafer surface processing

              * BCP Business continuity plan

              24

              © Mitsubishi Electric Corporation

              1. Production Strategy (assembly/inspection)

                • Establish global system based on local production and consumption

                • Utilize IoT for thorough productivity improvements

                • Transition to multiple production lines to fortify BCP

                • Internalize inspection technologies as know-how and advance them

              Fukuoka (Fukuoka City/Itoshima City): Mother factory

              Automotive/Traction/ Home appliances products

              Hyogo (Itami City/Toyooka City) Industrial products

              China (Hefei City/Shanghai City*) Home appliances products

              *Outsourcing in Shanghai

              Hungary (Vincotech) Industrial products

              Assembly/inspection processes

              25

              © Mitsubishi Electric Corporation

              1. Summary

              [100

              millio n

              © Mitsubishi Electric Corporation

              Growth target for "FY2022" Net Sales 200 billion yen OPM 10%

              Overseas sales ratio 60%

              Growth target for "FY2022" Net Sales 200 billion yen OPM 10%

              Overseas sales ratio 60%

              200 billion yen

              Traction/Electric power

              130 billion yen

              Industry

              (incl. renewable energy)

              Automotive

              Home appliance

              FY2017

              FY2022

              26

              © Mitsubishi Electric Corporation

              MITSUBISHI ELECTRIC

              Changes f or the Better

          Mitsubishi Electric Corporation published this content on 22 November 2017 and is solely responsible for the information contained herein.
          Distributed by Public, unedited and unaltered, on 22 November 2017 02:09:03 UTC.

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