Ball Attach Process Engineer I - Start-Up & Yield

Microchip Technology; Philippines; On-site; PHP 420,000 - 640,000; Full time

Job summary

Microchip Technology Inc. in the Philippines seeks a Ball Attach Engineer I to support start-up and ramp of ball attach processes in PLP assembly operations.

You will create process recipes, troubleshoot, and partner with cross‑functional teams to ensure stable, efficient, and high‑quality manufacturing. Key duties include leading line start-up, establishing initial conditions for mass production, monitoring early production, and applying DOE to optimize yield.

Qualifications

• Bachelor's Degree in Engineering (Electronics, Industrial, Mechanical, Chemical, or equivalent).
• Minimum of 3 years experience in semiconductor processes (WLCSP or BGA).
• Experience with Ball Attach, Ball Repair, Reflow, Flux rinse and Shear.
• Knowledge of SPC, MSA/GR&R, DOE, PFMEA, and problem solving.
• Strong analytical and communication skills; team orientation.

Responsibilities

• Lead and support start-up of Ball attach line and new products
• Establish initial process conditions and validate readiness for mass production
• Monitor early production performance and stabilize process during ramp‑up phase
• Identify and mitigate start-up risks affecting yield, quality, and throughput
• Monitor and maintain ball attach process parameters to ensure stability and consistency
• Develop, define, and maintain ball attach process recipes (e.g., EFO settings, bonding force, ultrasonic power, time, temperature profiles)
• Perform DOE (Design of Experiments) to determine optimal process windows
• Continuously optimize recipes to improve yield, efficiency, and reliability
• Standardize and release qualified recipes for production use
• Ensure compliance with established process control plans and specifications
• Perform regular process audits and line checks
• Analyze yield trends and defect data (e.g., missing balls, ball bridging, ball deformation)
• Identify root causes and implement corrective and preventive actions
• Respond to production issues and equipment‑related abnormalities
• Conduct root cause analysis using standard methodologies (5 Whys, Fishbone, 8D)
• Coordinate with Equipment, Quality, and Production teams for resolution
• Participate in process improvement projects and cost reduction activities
• Recommend and implement best practices for improved efficiency
• Maintain and update process documentation including work instructions and SOPs
• Ensure compliance with internal quality standards and audit requirements
• Support internal and external Customer audits

Skills

Ball Attach

DOE

Problem-solving

Leadership

Communication

Attention to detail

Safety & Cleanroom

Education

Bachelor's Degree in Engineering (Electronics, Industrial, Mechanical, Chemical, or equivalent)

Tools

MS Office

Job description

Microchip Technology Inc. in the Philippines seeks a Ball Attach Engineer I to support start-up and ramp of ball attach processes in PLP assembly operations.

You will create process recipes, troubleshoot, and partner with cross‑functional teams to ensure stable, efficient, and high‑quality manufacturing. Key duties include leading line start-up, establishing initial conditions for mass production, monitoring early production, and applying DOE to optimize yield.