Diodes

Manufacturing Device / Wafer Acceptance Test (WAT) Engineer

Diodes$83K — $112K *
Manufacturing & Automotive
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree or higher in related technical field (Electrical Engineering, Computer Engineering, etc.)
  • 1-3 years of relevant experience in semiconductor manufacturing or device engineering
  • Strong analytical skills for interpreting semiconductor electrical data
  • Proficiency in automated semiconductor testing and electrical measurement systems
  • Programming expertise in Python, C/C++, or similar languages
  • Knowledge of continuous improvement methodologies like Six Sigma and SPC

Responsibilities

  • Develop and optimize Wafer Acceptance Test (WAT) and device characterization programs
  • Analyze wafer-level data to identify yield-impacting issues
  • Troubleshoot semiconductor process and testing issues, implementing corrective actions
  • Utilize statistical tools to enhance manufacturing performance
  • Monitor and improve manufacturing metrics like yield and electrical performance
  • Support new technology development and product introduction activities
  • Collaborate across teams to drive quality and cost improvement initiatives

Benefits

  • Comprehensive medical, dental, and vision insurance
  • 401k plan with company match
  • Paid time off and employee wellness program
  • Company-paid Short-Term and Long-Term disability insurance
  • Standard life insurance policy
Full Job Description
Manufacturing Device/Wafer Acceptance Test (WAT) Engineer

This position will support semiconductor technology development and high-volume manufacturing at our South Portland, Maine wafer fabrication facility.

Location

South Portland

Compensation

Pay range $83,000 to $112,000/year. Actual compensation may vary based on experience, qualifications, skills, and geographic considerations. Incentive compensation and benefits may also be available.

Benefits Summary

We offer a competitive benefits package to include medical, dental, vision, FSA, 401k with company match, company paid Short-Term and Long-Term disability and standard life insurance policy. We also provide paid time off and have an employee wellness program.

About the Role

This position offers an excellent opportunity for engineers with experience in semiconductor manufacturing, device engineering, wafer-level electrical testing, or process engineering to develop technical expertise while driving improvements in product quality, process capability, yield, and manufacturing performance.

You will work closely with Technology Development, Process, Quality, and Manufacturing teams to solve complex technical challenges, support new technologies, and develop automated wafer-level electrical test solutions.

What You'll Do

  • Develop, qualify, maintain, and optimize Wafer Acceptance Test (WAT) and device characterization programs using HP4062 and related semiconductor test platforms.

  • Analyze wafer-level parametric data, process control monitor structures, and device electrical characteristics to identify process excursions and yield-impacting issues.
  • Troubleshoot semiconductor device, process, and electrical test-related issues and implement effective corrective actions.
  • Utilize Statistical Process Control (SPC), Design of Experiments (DOE), Six Sigma, 8D, and Root Cause Analysis methodologies to improve manufacturing performance.
  • Monitor and improve key manufacturing metrics, including yield, process capability (CPK), and electrical performance.
  • Support technology development, process evaluations, product characterization, and new product introduction activities.
  • Develop software tools, automation solutions, and data analysis methods to increase engineering productivity and manufacturing efficiency.
  • Collaborate cross-functionally to drive quality improvements, operational excellence, and cost reduction initiatives.
  • Prepare technical reports and present engineering findings and recommendations to stakeholders and management.

Tool You'll Use

  • HP4062 parametric test system with TEL P8XL automated probers
  • Custom Built Electrical Testers
  • Keithley /Tektronix 4200 with Signatone manual probe station
  • C, PHP, Perl, HP RMB programing
  • SAS JMP, Pdf Solutions Exensio, Yield Hub Yield Management Systems


What You'll Gain

  • Build strong connections through networking and mentoring with members of Diodes' highly skilled workforce
  • Collaboration and exposure to a global team and resources
  • Gain Practical, project-based experience that strengthens your technical and professional skills.


Who You Are
  • Bachelor's degree or higher in Electrical Engineering, Computer Engineering, Physics, Microelectronics Engineering, Materials Science, or a related technical field.
  • Strong analytical and troubleshooting skills with the ability to interpret semiconductor electrical and process data.
  • Excellent communication and teamwork skills.
  • Ability to manage multiple priorities in a fast-paced manufacturing environment.
  • Initiative-taking with strong ownership and problem-solving capabilities.
  • 1-3 years of experience in semiconductor manufacturing, device engineering, process engineering, wafer acceptance testing (WAT), or related fields.
  • Knowledge of semiconductor device physics and wafer fabrication processes.
  • Experience with wafer-level parametric testing, semiconductor characterization, and process monitoring structures.
  • Experience with automated semiconductor test equipment and electrical measurement systems.
  • Programming experience in Python, C/C++, Perl, PHP, MATLAB, JMP Scripting Language (JSL), or similar tools.
  • Experience using JMP, Minitab, or comparable statistical analysis software.
  • Knowledge of SPC, DOE, Process Capability Analysis, Six Sigma, and continuous improvement methodologies.
  • Familiarity with analog, mixed-signal, power management, discrete, or power semiconductor devices.
  • Experience developing automation, scripting, or data analytics solutions in a manufacturing environment.

About Diodes

Diodes Incorporated is an American manufacturer and supplier of discrete, logic, analog and mixed-signal semiconductors. Its headquarters is located in Plano, Texas, United States. The company's products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors; power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. The company's target markets include automotive, communications, computing, consumer electronics, and industrial.
Learn more about Diodes
Size
8,921 employees
Market Cap
$3.4 billion
Industry
Net Income
$98 million
Founded
1959
5 Year Trend
+13.9%
Revenue
$1.2 billion
NASDAQ

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