Stars Microelectronics (Thailand)

What Stars Microelectronics (Thailand) does

Stars Microelectronics (Thailand) Public Company Limited (SMT) is a vertically integrated semiconductor and electronics manufacturing services provider headquartered in the Bang Pa-In Industrial Estate Free Zone, Ayutthaya, Thailand. Founded in December 1995 and listed on the Stock Exchange of Thailand in September 2009, the company operates across three core business lines: Outsourced Semiconductor Assembly and Test (OSAT), Electronics Manufacturing Services (EMS), and Photonics. Its technology stack spans wafer-level processing, advanced IC packaging (BGA, CSP, SiP, stacked dies, 2.5D/3D heterogeneous integration, Co-Packaged Optics), silicon photonics wafer fabrication in Class 1K/10K cleanrooms, high-precision optical assembly, SMT PCBA assembly (01005 capable), box-build assembly, and end-to-end test services including AOI, X-ray, ICT, FCT, and next-generation ATE platforms.

The company serves seven end-markets — Automotive (including SiC/GaN-based EV electronics), Industrial, Medical Device, Green Sustainability/Clean Energy, Professional Audio Video, Photonics & Telecommunication, and Microelectronics — with manufacturing operations in Thailand, sales offices in the USA, China, Europe, and Japan, and a joint venture in India (CG Semi) with CG Power and Renesas Electronics targeting Rs 7,600 crore in OSAT capacity. Revenue is generated through B2B contract manufacturing services with quote-based custom pricing tied to customer specifications and volume, with Q1 2026 quarterly revenue of THB 631 million (~USD 18 million) representing 15% YoY growth and a return to net profitability of THB 11 million. Customers include leading semiconductor, automotive, industrial, and photonics OEMs across the Americas, Europe, and Asia, with recent strategic partnerships with NAURA Technology Group (China) and ecosystem alignment with Thailand's TMEC and NSTDA.

Name

Stars Microelectronics (Thailand)

Legal name

Stars Microelectronics (Thailand) Public Company Limited

Website

https://starsmicro.com

Company type

Public

Founded year

1995

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Stars Microelectronics (Thailand) PCL is a Thai-owned vertically integrated OSAT, EMS, and photonics manufacturer serving automotive, industrial, medical, telecom, and semiconductor customers across the Americas, Europe, and Asia with advanced packaging capabilities spanning wafer processing to system assembly.

Ownership category

akta.pro rank

Product category

Semiconductor Manufacturing Services

NAICS

Printed Circuit Assembly (Electronic Assembly) Manufacturing (334418), Semiconductor and Other Electronic Component Manufacturing (33441)

SIC

Printed Circuit Boards (3672), Semiconductors & Related Devices (3674)

akta.pro primary industry

Assembly & Packaging Services (Wirebond/Flip-Chip/FCBGA) (HDAHADAA)

akta.pro secondary industries

PCB Assembly (PCBA/EMS) (HDAHAOAI), Industrial PCB & Substrate Components (Bare PCBs, rigid-flex, ceramic substrates, thick-film) (IMAGAJAM)

Keywords

• Semiconductor assembly
• Electronics manufacturing services
• Wafer processing
• Photonics manufacturing
• IC packaging test

Headquarters

HQ city

Bang Pa-in

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. OSAT (Outsourced Semiconductor Assembly and Test): Comprehensive OSAT services covering wafer processing, packaging/assembly for standard IC and advanced packages, and testing services with in-house standard testers and reliability testing facilities
2. EMS (Electronic Manufacturing Services): High-precision, flexible electronic manufacturing services including PCBA assembly (SMT, through-hole), box build assembly, and test & quality assurance services
3. Photonics: End-to-end photonic manufacturing solutions including silicon photonics wafer processing and optical assembly for automotive LiDAR, AOC, 400G transceiver, and optical telecommunications technology

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Stars Microelectronics (Thailand) PCL operates as a vertically integrated semiconductor and electronics manufacturing services provider, delivering three core business lines: OSAT (Outsourced Semiconductor Assembly and Test) covering wafer processing, IC packaging/assembly, and testing; EMS (Electronic Manufacturing Services) covering PCBA, box-build assembly, and quality assurance; and Photonics covering silicon photonics wafer processing and high-precision optical assembly. The company serves automotive, industrial, medical, clean energy, professional audio/video, photonics/telecom, and microelectronics customers with True Vertical Integration from wafer processing to complete system build assembly.

Product overview

Stars Microelectronics (Thailand) Public Company Limited (SMT) operates as a vertically integrated semiconductor and electronics manufacturing provider offering three core business lines: OSAT (Outsourced Semiconductor Assembly and Test), EMS (Electronic Manufacturing Services), and Photonics. The company provides True Vertical Integration manufacturing services covering processes from Wafer Processing to complete System Build assembly. The OSAT division handles semiconductor backend services including wafer processing, standard and advanced IC packaging (BGA, CSP, SiP, stacked dies), and comprehensive testing. The EMS division offers PCBA assembly, box-build services, and quality assurance across diverse markets. The Photonics division provides silicon photonics wafer processing and high-precision optical assembly for telecommunications and automotive LiDAR applications. Engineering Service capabilities support test development, failure analysis, and new product introduction. SMT serves 7 key industries: automotive, industrial, green sustainability, medical devices, professional audio/video, photonics & telecommunication, and microelectronics.

Differentiator

Problem solved

Functional benefit

Products and services

• OSAT (Outsourced Semiconductor Assembly and Test)
• EMS (Electronic Manufacturing Services)
• Photonics Manufacturing Services
• Engineering Services

Named customers2 records

Segments7 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Nine partnerships are on record, tiered strategic and core.

• NAURA Technology Group Co., Ltd.strategicTechnology or Integration · 2 July 2026MOU signed for semiconductor technology collaboration. NAURA is China's leading semiconductor equipment manufacturer. The partnership aims to advance semiconductor manufacturing capabilities through technology, innovation, and international collaboration, with support from Thailand Microelectronics Center (TMEC) and NSTDA.
• National Science and Technology Development Agency (NSTDA)coreStrategic or Co-development Partner · 23 December 2025Partner in STARS Co-Lab: Engineering Tomorrow initiative for science, technology, and Thai workforce development. Collaboration includes joint laboratories, cooperative education programs, and knowledge exchange with international experts.
• King Mongkut's University of Technology North Bangkok (KMUTNB)coreStrategic or Co-development Partner · 23 December 2025Partner in STARS Co-Lab: Engineering Tomorrow initiative for science, technology, and Thai workforce development. Collaboration includes cooperative education programs and hands-on academic curricula.
• King Mongkut's Institute of Technology Ladkrabang (KMITL)coreStrategic or Co-development Partner · 23 December 2025Partner in STARS Co-Lab: Engineering Tomorrow initiative for science, technology, and Thai workforce development. Collaboration includes cooperative education programs and knowledge exchange.
• King Mongkut's University of Technology Thonburi (KMUTT)coreStrategic or Co-development Partner · 23 December 2025Partner in STARS Co-Lab: Engineering Tomorrow initiative for science, technology, and Thai workforce development. Collaboration includes cooperative education programs and knowledge exchange.
• Mahanakorn University of Technology (MUT)coreStrategic or Co-development Partner · 23 December 2025Partner in STARS Co-Lab: Engineering Tomorrow initiative for science, technology, and Thai workforce development. Collaboration includes cooperative education programs and knowledge exchange.
• CG Power and Industrial Solutions Ltd.coreStrategic or Co-development PartnerJoint venture partner in CG Semi Private Limited for OSAT facility in Sanand, Gujarat, India. Stars Microelectronics provides semiconductor assembly and test expertise to the JV. The facility represents Rs 7,600 crore investment targeting initial production of 200 million chips annually, scaling to 4.7 billion units.
• Renesas Electronics CorporationcoreStrategic or Co-development PartnerJoint venture partner in CG Semi Private Limited for OSAT facility in India. Renesas is Japan's leading semiconductor company and serves as anchor customer for shipments from the JV facility. JV aims to serve automotive and industrial applications with exports to Japan, US, and Europe.
• Thailand Microelectronics Center (TMEC)coreStrategic or Co-development PartnerTMEC Director participated in MOU signing ceremony with NAURA, reinforcing the importance of strengthening Thailand's semiconductor ecosystem through close collaboration between industry and public sector.

Scale indicators6 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Fabrinet: Specialized provider of advanced optical packaging and complex PCBA for optical communications, automotive, and other industries. Comparable given SMT's photonics and silicon photonics focus.
• Amkor Technology: Leading global OSAT provider with strong advanced packaging portfolio (flip-chip, wafer-level, 2.5D/3D). Comparable in serving automotive, industrial, and high-performance semiconductor customers.
• Hana Microelectronics: Thai-headquartered EMS and IC assembly provider with operations across Thailand, China, and elsewhere. Most direct geographic peer in Thailand's EMS/OSAT landscape.
• Cal-Comp Electronics (Thailand): Major Thai-listed EMS provider offering PCB assembly, box build, and consumer/industrial electronics manufacturing. Comparable as Thailand-based competitor in EMS services.
• Powertech Technology Inc. Taiwan-based OSAT specializing in IC packaging, assembly, and testing, including advanced packaging. Comparable across memory and logic packaging segments.
• ASE Technology Holding: World's largest OSAT provider offering IC packaging and test services including advanced packaging (FCBGA, 2.5D/3D). Directly comparable as both compete in semiconductor assembly and test across multiple end markets.
• JCET Group: Major Chinese-headquartered OSAT (formerly STATS ChipPAC) offering advanced packaging and test services. Comparable as competitor in mid-to-high-end packaging across automotive, computing, and communications.

Broad incumbents

• Venture Corporation: Singapore-listed global EMS provider serving life sciences, industrial, and networking customers. Comparable as a diversified Asian EMS competitor with overlapping service offerings.
• Benchmark Electronics: Global EMS provider serving aerospace, defense, medical, and industrial customers. Comparable as a broader EMS competitor with overlapping customer verticals and similar EMS revenue model.

Others

• Renesas Electronics: Japanese semiconductor company and anchor JV partner in CG Semi. Comparable not as a competitor but as a key customer and strategic partner driving SMT's OSAT demand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@starsmicroelectronicshq2125
• Facebookfacebook.com/profile.php?id=61570153297718
• LinkedInlinkedin.com/company/smtthailand

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stars Microelectronics (Thailand)