Top 10 OSAT (Outsourced Semiconductor Assembly and Test) Companies in 2024

In 2024, the OSAT industry continues to be a dynamic and competitive sector, with several key players leading the market. Here’s a detailed look at the top 10 OSAT companies in the world for 2024.

Introduction

Outsourced Semiconductor Assembly and Test (OSAT) companies play a crucial role in the semiconductor supply chain, offering vital services that include the assembly, packaging, and testing of semiconductor devices. These services are essential for ensuring that chips perform reliably in their end applications. In 2024, the OSAT industry continues to be a dynamic and competitive sector, with several key players leading the market. Here’s a detailed look at the top 10 OSAT companies in the world for 2024.

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1. ASE Technology Holding Co., Ltd.

Headquarters: Kaohsiung, Taiwan

Market Share: 30%

Overview:

ASE Technology Holding Co., Ltd. is the largest OSAT provider globally. Founded in 1984, ASE offers a comprehensive range of services, including fan-out wafer-level packaging (FO-WLP), wafer-level chip-scale packaging (WL-CSP), flip-chip, 2.5D and 3D packaging, and system-in-package (SiP).

With facilities in Taiwan, China, Korea, Japan, Malaysia, and Singapore, ASE serves over 90% of the world’s electronics companies.

Its extensive global network and technological prowess make it a leader in the OSAT industry.

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Recent Developments:

ASE has been investing heavily in advanced packaging technologies and expanding its capabilities in high-performance computing and automotive electronics, aligning with the growing demand for sophisticated semiconductor solutions.

2. Amkor Technology, Inc.

Headquarters: West Chester, Pennsylvania, USA

Market Share: 14.6%

Overview:
Amkor Technology, established in 1968, is the second-largest OSAT company in the world. It provides a wide array of packaging services, including package design and development, wafer probing, and final testing. Amkor is recognized for its expertise in thermal compression bonding and wafer-level packaging. The company has expanded its global footprint through acquisitions, including J-Devices Corp. and NANIUM S.A., enhancing its capabilities and market presence.

Recent Developments:
Amkor has been focusing on expanding its capabilities in high-density and advanced packaging technologies to meet the increasing demands of 5G, AI, and automotive applications.

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3. JCET Group Co., Ltd.

Headquarters: Shanghai, China

Market Share: 11.9%

Overview:
JCET Group, the largest OSAT provider in mainland China, was founded in 1972. It offers a complete suite of services, including IC system integration, package design, wafer bumping, and finished chip testing. JCET’s extensive R&D and production facilities across China, Singapore, Korea, and the US enable it to provide a broad range of packaging solutions, from traditional to advanced technologies.

Recent Developments:
JCET continues to strengthen its position through technological advancements in system-in-package (SiP) and eWLB packaging, catering to high-growth sectors such as 5G and automotive electronics.

4. Powertech Technology Inc. (PTI)

Headquarters: Hsinchu, Taiwan

Market Share: 8.2%

Overview:
Founded in 1997, Powertech Technology Inc. specializes in thin small form factor packages, quad flat leadless packages, multi-chip packages, and package-on-package assembly services. PTI has a strong presence in Asia, Europe, and the Americas, and is known for its expertise in memory card packaging and advanced testing services.

Recent Developments:
PTI has been investing in expanding its capacity and technology portfolio to support emerging applications in high-performance computing and automotive sectors.

5. Tongfu Microelectronics Co., Ltd. (TFMC)

Headquarters: Suzhou, China

Market Share: 5.1%

Overview:
TFMC, established in 1997, offers IC packaging and testing services, including bumping, wafer-level chip-scale packaging, flip-chip, and system-in-package technologies. The company has grown significantly through strategic acquisitions, such as AMD’s Suzhou and Penang facilities, which have bolstered its technological capabilities and market reach.

Recent Developments:
TFMC is focusing on expanding its advanced packaging technologies and increasing its involvement in the automotive and high-performance computing markets.

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6. Huatian Technology Co., Ltd.

Headquarters: Shenzhen, China

Market Share: 4.0%

Overview:
Huatian Technology, founded in 2003, is a prominent OSAT provider in China. The company offers a wide range of IC packaging and testing services, including traditional and advanced packaging technologies. Huatian’s acquisition of FCI’s semiconductor business in 2015 has significantly enhanced its capabilities.

Recent Developments:
Huatian continues to expand its technological offerings and capacity, with a particular focus on automotive electronics and high-density packaging solutions.

7. KYEC

Headquarters: Hsinchu, Taiwan

Market Share: 3.1%

Overview:
KYEC, established in 1987, specializes in wafer pin testing, finished IC testing, and wafer grinding. Known for its expertise in testing and back-end processes, KYEC serves a diverse range of clients across the semiconductor industry.

Recent Developments:
KYEC is enhancing its testing capabilities and exploring new applications in emerging markets such as 5G and automotive electronics.

8. ChipMOS Technologies Inc.

Headquarters: Hsinchu, Taiwan

Market Share: 2.9%

Overview:
ChipMOS Technologies, founded in 1997, is a leading provider of packaging and testing services for high-frequency and high-density memory products. The company’s strengths include its capabilities in LCD driver IC packaging and testing.

Recent Developments:
ChipMOS is focusing on expanding its services in high-density and high-frequency applications, catering to the growing demand in consumer electronics and telecommunications.

9. Chipbond Technology Corporation

Headquarters: Hsinchu, Taiwan

Market Share: 2.4%

Overview:
Chipbond, established in 1997, provides a range of services including wafer bumping, redistribution layers, wafer surface treatment, and back-end processing. The company’s operations are centered in the Hsinchu Science Park, where it has two main facilities for bumping and back-end processing.

Recent Developments:
Chipbond is investing in upgrading its technology and expanding its service offerings to meet the needs of advanced semiconductor applications.

10. UTAC Group

Headquarters: Singapore

Market Share: 2.2%

Overview:
UTAC, founded in 2010, is a global leader in IC packaging and testing, with a focus on automotive, industrial control, cloud computing, and communication applications. The company has made significant strides in analog power devices, digital-analog hybrid devices, and automotive electronics packaging.

Recent Developments:
UTAC continues to enhance its technology and expand its global presence, with a particular emphasis on automotive electronics and high-performance computing.

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Conclusion

The OSAT companies in 2024 remains dominated by a few key players who lead in technology, capacity, and market share.

These top 10 OSAT companies are at the forefront of innovation, driving advancements in semiconductor packaging and testing to meet the evolving needs of the electronics industry.

As technology continues to advance and new applications emerge, these companies will play a crucial role in shaping the future of semiconductor manufacturing and testing.

Kumar Priyadarshi
Kumar Priyadarshi

Kumar Joined IISER Pune after qualifying IIT-JEE in 2012. In his 5th year, he travelled to Singapore for his master’s thesis which yielded a Research Paper in ACS Nano. Kumar Joined Global Foundries as a process Engineer in Singapore working at 40 nm Process node. Working as a scientist at IIT Bombay as Senior Scientist, Kumar Led the team which built India’s 1st Memory Chip with Semiconductor Lab (SCL).

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