About Advanced Substrate Technologies Pte. Ltd.

We are a Singapore-based subsidiary of TOPPAN Holdings Inc., a Japanese pioneer in printing technologies and a leading supplier of high-quality Flip Chip Ball Grid Array (FC-BGA) substrates. We are the first factory in Singapore to pioneer the manufacturing of high-end FC-BGA substrates used in cutting-edge semiconductor products such as network switches and artificial intelligence (AI)/machine learning (ML) devices.

Additionally, our facility will conduct research and development (R&D) aimed at advancing substrate technologies to meet the evolving performance requirements of future products in these domains. Broadcom Inc., a global technology leader specializing in semiconductor design, enterprise software, and security solutions, is also actively supporting the establishment of this state-of-the-art manufacturing facility in Singapore.

 

Resposibilities

Process Development & Optimization                  

• Develop and optimize wet etching processes for substrate layers.
• Design experiments (DOE) to evaluate and improve critical etch parameters (e.g., etch rate, uniformity).
• Establish and maintain robust process windows for R&D and volume production.

Equipment & Materials Management        

• Define equipment requirements and manage tool qualifications (e.g., acid/ultrasonic cleaning, wet benches).
• Monitor and maintain etching tool performance, chemistry concentration, and bath lifetime.
• Evaluate and select etchants, and chemistry blends suitable for advanced substrates.

Yield, Quality & Defect Control                  

• Identify and resolve etching-related defects such as over-etch, or residues.
• Analyze root causes of defects using SEM, optical inspection, and profilometry tools.
• Collaborate with upstream/downstream processes to improve overall line yield and substrate performance.

Cross-Functional Collaboration

• Work closely with plating, lithography, CMP, and lamination teams to ensure seamless process integration.
• Support new product introductions (NPI) and customer qualifications with process stability and repeatability.

Documentation & Compliance

• Create and maintain technical documentation such as process specifications, control plans, FMEAs, and work instructions.
• Ensure processes comply with environmental, safety, and chemical handling regulations.

Perform any other ad-hoc duties as assigned by the Manager, as required to support the team and organizational goals.

 

Location & Commitments

• Premises located in 9 Pesawat Drive, Singapore 619607
• Permanent, full-time role working 40 hours per week

 

Job Requirements

Professional Qualifications:

• PhD or Master’s degree in Chemical Engineering, Materials Science, Microelectronics, or related field.
• 5–10+ years of hands-on experience in substrate, PCB, or semiconductor etching processes.
• Familiar with substrate materials such as ABF, PID, PI, or photoresists.
• Knowledge of substrate technologies such as Damascene, SAP, ABF build-up, or Embedding is a plus.

Specialized Knowledge & Skills:

• Knowledge of Damascene/SAP processes for high-density substrates.
• Proficiency with process characterization tools (SEM, AFM, XPS, optical profilers).
• Familiar with SPC, Six Sigma, and yield enhancement methodologies.
• Strong problem-solving, documentation, and communication skills.

 

Contact us to apply

If you believe you possess the qualifications for this position, please submit your resume and cover letter to our HR team at hr_career@ast-sg.com.

 

Why Join Us?

• You will have the Opportunity to Make an Impact as pioneer employees in shaping our company’s culture, processes, and success from the ground up.
• You will have ample opportunities for Career Growth and Advancement as our company continues to grow.
• We do embrace Technology AI Innovation and Agile Work Environment where ideas are valued and implemented quickly.
• You will have more chances to take on Ownership initiatives with higher Recognition from the Management.
• We do offer Competitive Compensation, Benefits and Perks as we benchmark ourselves against the market data.
• We fully understand the importance of Work-Life Balance so we do offer Flexible Work Arrangement and Flexi-Time in the company.
• We are planning to introduce a Shuttle Bus Service that will transport employees from designated MRT stations, with potential expansion to include a pickup point at Johor customs.
• Our facility will have a Multi-Purpose Room cater for religious prayer, meditation time and nursing purposes.

 

Closing Statement

AST is dedicated to creating a workplace that is diverse, equitable, and inclusive, where every employee feels appreciated, respected, and empowered to share their unique perspectives.

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