A Novel Out-of-Control Action Plan (OCAP) for Optimizing Efficiency and Quality in the Wafer Probing Process for...

Area of Science:

• Semiconductor Manufacturing
• Industrial Engineering
• Process Control

Background:

• Traditional out-of-control action plans (OCAP) in wafer probing are inefficient, causing production delays and increased costs.
• Existing OCAP methods often involve redundant steps post-failure, hindering optimal manufacturing performance.

Purpose of the Study:

• To develop and validate a novel out-of-control action plan (OCAP) for semiconductor wafer probing.
• To enhance the efficiency and reliability of semiconductor manufacturing processes through proactive OCAP implementation.

Main Methods:

• Integration of proactive measures like preventive maintenance and advanced monitoring into the OCAP.
• Verification through a comprehensive experimental setup and case study implementation.
• Comparative analysis between the novel OCAP and traditional OCAP methodologies.

Main Results:

• Reduced machine downtime by over 24 hours per week.
• Increased wafer production by approximately 23 wafers per week.
• Improved probe test yield by an average of 1.1% and enhanced overall equipment effectiveness (OEE).

Conclusions:

• The novel OCAP significantly improves efficiency and production output in wafer probing.
• Proactive OCAP implementation reduces reliance on human judgment, minimizing errors.
• The proposed OCAP offers a more effective approach to managing deviations in semiconductor manufacturing.