Test Process Engineer 1

onsemi; Tarlac City; On-site; PHP 420,000 - 540,000; Full time

Job summary

onsemi is seeking a hands-on Test Process Engineer in the Philippines to develop, optimize, and sustain semiconductor test processes for high yield and cost-effective production.

You will troubleshoot test issues, drive yield improvement, and collaborate with Assembly, Design, and Wafer Fab teams to resolve systemic problems while implementing SPC controls and CAPA actions.

Qualifications

• Bachelor of Science in Engineering or equivalent.

Responsibilities

• Develop, qualify, and release test processes for new products (NPI to Production transition).
• Define test methodologies, limits, and guard bands based on characterization data.
• Optimize test programs to improve throughput, test time, and cost efficiency.
• Monitor daily test yield and identify yield loss drivers.
• Perform Pareto analysis on failures and drive RCA and CAPA implementation.
• Collaborate with cross-functional teams to resolve systemic issues.
• Ensure proper handler/prober interface and test setup optimization.
• Maintain SPC controls and track key metrics (yield, test escapes, retest rate, DPPM).
• Establish control and reaction plans for out-of-control conditions.
• Drive test cost reduction initiatives through automation and standardization.
• Document test procedures, specifications, and ECNs.

Skills

BS in Engineering

Semiconductor experience

Manufacturing knowledge

Analytical skills

Interpersonal skills

Independent work

MS Office proficiency

Fast-paced environment

Education

Bachelor of Science in Engineering

Tools

MS Project

Excel

PowerPoint

Word

Job description

Job Description

onsemi is currently seeking a hands-on Process Engineer. This person will utilize innovative concepts and best-known methods to improve and develop processes and products. The ideal candidate will also provide technical leadership, support, and training to internal and external customers.

Responsibilities

Position Summary

The Test Process Engineer is responsible for developing, optimizing, and sustaining semiconductor test processes to ensure high yield, reliability, and cost-effective production. This role focuses on troubleshooting test-related issues, driving yield improvement, and ensuring robust test coverage across products.

• Develop, qualify, and release test processes for new products (NPI to Production transition).
• Define test methodologies, limits, and guard bands based on characterization data.
• Optimize test programs to improve throughput, test time, and cost efficiency.
• Monitor daily test yield performance and identify yield loss drivers.
• Perform Pareto analysis on failures and drive root cause analysis (RCA) and implement corrective/preventive actions (CAPA).
• Collaborate with cross-functional teams (Assembly, Design, Wafer Fab) to resolve systemic issues.
• Ensure proper handler/prober interface and test setup optimization by working with equipment engineering to resolve tester hardware issues.
• Implement and maintain SPC controls (UCL/LCL, Cpk, Ppk) for critical parameters and track key metrics such as yield, test escapes, retest rate, and DPPM.
• Establish control plans and reaction plans for out-of-control conditions.
• Drive test cost reduction initiatives (test time, multi-site optimization, program efficiency) by improving productivity through automation and standardization
• Document test procedures, specifications, and engineering change notices (ECNs).

Qualifications

• Graduate of Bachelor of Science in Engineering course primarily on Electronics Technology, Electronics Engineering (Undergraduate), Mechatronics Engineering or equivalent.
• Experience in semiconductor or electronics manufacturing is an advantage.
• Basic knowledge of manufacturing processes and equipment.
• Excellent analytical, organizational, planning, and problem-solving/troubleshooting skills.
• Comfortable in a fast-paced engineering and manufacturing environment.
• Well-developed interpersonal and communication skills, and ability to manage conflict in a stressful environment.
• Understands and listens to team members and fosters a productive team environment.
• Handles multiple projects and must be able to work independently with limited supervision.
• Proficient in advanced techniques with relevant software: MS Project, Excel, PowerPoint, Word, etc.

About Us

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

More details about our company benefits can be found here: https://www.onsemi.com/careers/career-benefits

About The Team

We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work.