Process Engineer - Diebond (CoX)

Coherent Corp.; Calamba; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

Coherent Corp. Philippines is seeking a qualified engineer to optimize and sustain die-bonding processes for chip-on-carrier/submount products.

The role requires hands-on experience in die bonding, solder reflow, and process qualification, with a focus on yield, reliability, and production throughput. You will perform DOE, SPC, GR&R, and data analysis, lead root-cause investigations, and support NPI, equipment qualification, and cross-functional training.

Qualifications

• Bachelor’s degree in Engineering or equivalent science fields.
• 3–5 years in semiconductor, laser, photonics or optoelectronics assembly manufacturing.
• Hands-on experience in die bonding, solder reflow, process qualification, equipment validation; Lean Six Sigma is a plus.

Responsibilities

• Optimize and sustain die-bonding processes for chip on carrier/submount products.
• Establish process parameters and thermal profiles for alignment, solder quality, bond strength, and reliability.
• Conduct DOE, process capability studies, SPC, GR&R, and data analysis to improve stability and yield.
• Lead root-cause investigations and preventive/corrective actions for defects and variations.
• Support equipment qualification, new product introduction, product transfer, and training.

Skills

Die bonding

Solder reflow

DOE

SPC

GR&R

Root-cause analysis

Cross-functional teamwork

Education

Bachelor's in Electronics/Electrical/Mechanical

Tools

Microscopes

Profilometry

Interferometer

Electrical testing

Polishing

Job description

Job Description

Primary Duties & Responsibilities

• Optimize, qualify, and sustain die-bonding processes for chip on carrier/submount products
• Establish process parameters and thermal profiles to achieve proper alignment, solder quality, bond strength, thermal performance, and product reliability
• Conduct DOE, process capability studies, SPC, GR&R, and data analysis to improve process stability, yield, and productivity
• Lead root-cause investigations and preventive/corrective actions for die-bonding defects, process variations, and reliability issues
• Support equipment acceptance/qualification, new product introduction, product transfer, production ramp-up, documentation, and process training

Education & Experience

• At least a Bachelor’s degree in Electronics, Electrical, Mechanical or Chemical Engineering or equivalent science courses like Physics, etc
• With 3―5 years of experience in semiconductor, laser, photonics or optoelectronics assembly manufacturing
• With hands‑on experience in die bonding, solder reflow, process qualification, equipment validation, yield improvement, and new product introduction; Lean Six Sigma certification is an advantage.

Skills

• Strong technical knowledge of die bonding / solder reflow of chips to submounts and components like thermistor and photodiode
• Proficient in process optimization, thermal profiling, DOE, SPC, GR&R, PFMEA, and capability analysis
• Strong problem‑solving skills in root-cause analysis, defect reduction, yield improvement, and process troubleshooting
• Experience with microscopes, profilometry, interferometer, electrical testing, polishing and other inspection or analysis tools
• Effective communication, documentation, project management, cross‑functional collaboration, and continuous improvement skills

Working Conditions

• This role is 100% onsite. This requires working inside the cleanroom.

Culture Commitment

• I Integrity – Create an Environment of Trust
• C Collaboration – Innovate Through the Sharing of Ideas
• A Accountability – Own the Process and the Outcome
• R Respect – Recognize the Value in Everyone
• E Enthusiasm – Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

Coherent Philippines Pte Ltd shares the 5 key principles of fair employment practices and is committed to adopting these principles in the management of our human resources. We believe that the effective implementation of fair employment practices will bring about a more harmonious and progressive work environment within our organization and contribute towards making Philippines a great place to work.

About Us

Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard‑work through a competitive compensation program. It’s an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!