ROHM has set a corporate objective of ‘Quality First’ and pursues high quality, innovative manufac-
turing while providing greater security and peace of mind through stable, guaranteed delivery.
In addition, ROHM takes on supply responsibility by utilizing a vertically integrated production system
and implements a variety of initiatives to ensure superior reliability.
ROHM Initiatives for Automotive-Grade Products
Overview
Sample Initiatives
Workmanship
verified during die
bonding operationQuality check
during the wire
bonding processScreening methods are implemented at
each process, from silicon ingot pulling
and wafer production to testing,
assembly, and shipment inspection in
order to verify quality and workmanship.
Real-time verification in all processes
Real-Time Quality Checks
(PAT: Part Average Testing)Measurement data is statistically
analyzed in order to remove outliers
that fall even within the normal
rangePAT System
The PAT system is designed to remove outliers - even within the
normal range - through statistical analysis of measurement data.
As a result, even some products deemed to be good during
testing and fall within the normal range but lie outside the lot
distribution are removed due to potential characteristics that
may cause them to fail prematurely in the future. This provides
an additional measure to prevent defective products from
escaping.
PAT Range
Output Voltage (V)Frequency (Chip Count)Normal Range
35
30
25
20
15
10
5
0- 85 0.9 0. 95
1- 05 1.1 1.15 1.2
PAT System Implementation (AEC Compliance)
Robust design/multiple protection circuits/
improved resistance to destruction/easier
testability/threshold characteristics evaluationModel DesignHigh/ambient/low temperature measurement (all chips) •
100% HV stress testing/PAT system implementationModel Testing DesignJEITA-based • JEDEC-/AEC-Q100-/AEC-Q101-compliant- Long-term reliability testing • Lifetime est. based on WLR
data • ESD testing
Model Certification StandardsSPC management/real-time monitoring/100%
chip defect inspectionWafer Process ManagementMain processing point real-time work and
check/workmanship guarantee (i.e. internal X-ray
inspection, reflow screening)/4M consolidationAssembly Process ManagementKept samples from all lots stored for 10 years (for
important security applications)/in-process failure analysis
of all lots, etc.Traceability, Kept Samples, In-Process Failure
Analysis, etc.ROHM manufactures automotive products on designated HR
(High Reliability) lines, separate from standard lines used for
general-purpose productsAutomotive HR LineCertified OperatorDie Bonding W ire BondingLine Differentiation and 4M
All automotive products are produced and processed on
dedicated lines by certified operators that have undergone
extensive training and testing. Focusing on machine and man
makes it possible to establish a high-reliability, automotive-
grade production environment.Certification
ArmbandDedicated Automotive Lines
ROHM
Apollo Co., Ltd.
(Fukuoka)FukuokaMain Sales OfficesManufacturing FacilitiesDesign CentersQA CentersLAPIS Semiconductor
Miyazaki Co., Ltd.
(Miyazaki)Main Sales Offices
Manufacturing Facilities
Design/QA Centers
QA CentersGermanySiCrystalIndiaROHM Integrated Systems(Thailand)
ROHM Mechatech (Thailand)ThailandROHM-Wako Electronics (Malaysia)PhilippinesTaiwanShanghaiKoreaDalianROHM Mechatech (Tianjin)ROHM Semiconductor(China)ROHM Mechatech PhilippinesMalaysia
SingaporeShenzhenHong KongSan DiegoSanta ClaraBrazilKionix
DetroitROHM Electronics DalianROHM KoreaROHM Electronics PhilippinesU.S.A.ROHM Group Locations (Global)
ROHM Group Locations (Japan)
AMERICA●^ Main Sales Offices
● Design Centers
●^ Manufacturing Facilities
ROHM Semiconductor Korea Corporation
ROHM Semiconductor Trading (Dalian) Co., Ltd.
ROHM Semiconductor (Shanghai) Co., Ltd.
ROHM Semiconductor (Shenzhen) Co., Ltd.
ROHM Semiconductor Hong Kong Co., Ltd.
ROHM Semiconductor Taiwan Co., Ltd.
ROHM Semiconductor Singapore Pte. Ltd.
ROHM Semiconductor Philippines Corporation
ROHM Semiconductor (Thailand) Co., Ltd.
ROHM Semiconductor Malaysia Sdn. Bhd.
ROHM Semiconductor India Pvt. Ltd.
ROHM Semiconductor U.S.A., LLC
ROHM Semiconductor do Brasil Ltda.
ROHM Semiconductor GmbHROHM Korea Corporation
ROHM Electronics Philippines, Inc.
ROHM Integrated Systems (Thailand) Co., Ltd.
ROHM Semiconductor(China) Co., Ltd.
ROHM Electronics Dalian Co., Ltd.
ROHM-Wako Electronics (Malaysia) Sdn. Bhd.
ROHM Mechatech Philippines, Inc.
ROHM Mechatech (Thailand) Co., Ltd.
ROHM Mechatech (Tianjin) Co., Ltd.Kionix, Inc.
SiCrystal AGAMERICAEUROPEASIA AMERICA
EUROPEASIAKorea QA Center
Shanghai QA Center
Shenzhen QA Center
Taiwan QA Center
Singapore QA Center
Thailand QA Center
USA QA Center
Europe QA CenterASIA● QA Centers
● Main Sales Offices
● Manufacturing Facilities
Kyoto Technology Center (Head Office)
Kyoto Technology Center (Kyoto Ekimae)
Yokohama Technology Center
LAPIS Semiconductor Co., Ltd.(Shin-Yokohama)
LAPIS Semiconductor Co., Ltd. Miyazaki Design CenterKyoto QA Center
Yokohama QA Center●^ QA Centers
● Design Centers
EUROPEAMERICAASIA Korea Design Center^
Shanghai Design Center
Shenzhen Design Center
Taiwan Design Center
India Design Center
America Design Center (Santa Clara)
America Design Center (San Diego)
Europe Design Center EUROPETechnology for th e automotive future
Kyoto
Tokyo
YokohamaNagoya
FukuokaMatsumoto
Mito
Nishi-TokyoSendai
Takasaki
UtsunomiyaROHM Hamamatsu Co., Ltd.
ROHM Wako Co., Ltd.
ROHM Apollo Co., Ltd.
ROHM Mechatech Co., Ltd.LAPIS Semiconductor Miyagi Co., Ltd.
LAPIS Semiconductor Miyazaki Co., Ltd.
AGLED Co., Ltd.ROHM
Wako Co., Ltd.
(Okayama)LAPIS Semiconductor
Miyazaki Design CenterAGLEDROHM MechatechKyoto
(Headquarters)Takasaki
Matsumoto
Utsunomiya
Mito
Nishi-TokyoTokyo
Yokohama/
LAPIS Semiconductor (Headquarters)ROHM Hamamatsu Co., Ltd.
(Shizuoka)NagoyaSendaiLAPIS Semiconductor Miyagi Co., Ltd.
(Miyagi)Company Name / ROHM Co., Ltd.
Headquarters / 21 Saiin Mizosaki-cho, Ukyo-ku,
Kyoto 615-8585 Japan
TEL: +81-75-311-2121 FAX: +81-75-315-0172Date Established / September 17,1958
President / Satoshi Sawamura