Test Engineer

The Role

The Foundry Testing Engineer is responsible for ensuring the quality, reliability, and performance of semiconductor devices manufactured at the foundry. The role involves wafer sort, final test, yield analysis, test program development, and close collaboration with design, process, and manufacturing teams to optimise test coverage and production yield.

Key Responsibilities

Test Development & Execution

Develop, debug, and maintain ATE test programs for wafer sort and final test

Define test flows, limit setting, binning strategies, and fault coverage

Support new product introduction (NPI) testing activities

Manufacturing & Operations Support

Execute and monitor wafer probing and final test operations

Investigate and resolve test-related failures, yield loss, and test escapes

Support high-volume manufacturing (HVM) testing

Yield & Failure Analysis

Analyze test data to identify yield trends, anomalies, and root causes

Work with process and device teams to drive yield-improvement initiatives

Perform correlation between wafer sort, final test, and reliability data

Equipment & Tool Management

Work with ATE platforms (e.g., Teradyne and Advantest)

Support test hardware: probe cards, load boards, sockets

Coordinate equipment qualification, calibration, and change management

Collaboration & Documentation

Interface with design, DFT, process, and reliability teams

Prepare test documentation, reports, and transition packages

Support customer audits and quality reviews when required

Your Profile

Technical Skills

Strong knowledge of semiconductor devices and fabrication processes

Experience with DFT concepts (Scan, JTAG, BIST, etc.)

Proficiency in at least one ATE platform:

o Teradyne (UltraFLEX, J750)

o Advantest (V93K, T2000)

Data analysis using Python, JMP, Excel, or SQL

Understanding of yield analysis, SPC, and test coverage metrics

Soft Skills

Strong analytical and problem-solving skills

Ability to work in cross-functional and cross-site teams

Clear technical communication and documentation skills