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Principal Device Engineer

Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.


Diamond Foundry is advancing the development of semiconductor devices leveraging intrinsic diamond, heteroepitaxial growth, and heterogeneous integration on single-crystal diamond substrates. We seek an individual with strong problem-solving skills who can apply physics and engineering principles to design, fabricate, and integrate innovative electronic devices.


Responsibilities
  • Simulate semiconductor devices based on market-driven specifications, utilizing tools such as Sentaurus, TCAD, or equivalent software to model electronic and transport properties.
  • Fabricate and characterize prototype semiconductor devices (e.g., p/n junction transistors, homojunction or heterojunction-based structures), assessing electrical performance through experimental techniques.
  • Collaborate with cross-functional teams to integrate developed devices into emerging products, ensuring compatibility with circuit designs and system-level performance


Requirements
  • PhD in Electrical Engineering, Materials Science, or a related field with a strong background in semiconductor device development.
  • Proven experience designing and fabricating p/n junction transistors using homo- or hetero-junctions with Wide Band Gap materials.
  • Expertise in device physics, bandgap engineering, and power electronics devices.
  • Hands-on experience with semiconductor fabrication processes, electrical characterization, and failure analysis.
  • Strong problem-solving skills and the ability to work in a fast-paced, collaborative environment.


$150,000 - $170,000 a year

Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. All benefits offered are available starting your first day.  


Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.


Diamond Foundry Inc. is committed to operating in full compliance with all applicable state and federal laws. Our commitment extends to ensuring that our manufacturing and engineering departments adhere to the highest standards of legal and regulatory compliance. Additionally, these departments may have specific physical requirements to ensure the safety and efficiency of our operations. We prioritize the well-being of our employees and strive to create a work environment that promotes both legal compliance and the optimal functioning of our manufacturing and engineering processes.


Manufacturing and Engineering Departments Physical Requirements:

-Use appropriate PPE and follow all safety policies, practices, and procedures.

-This position will often: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist,  climb, balance, stoop, squat,  kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions. 

-Some tasks may require the use of ladders or stairs

-Some tasks may require driving or the use of foot controls

-Lift/carry and push/pull up to 50 pound


This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.

If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment.

Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.

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CEO of Diamond Foundry
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Martin Roscheisen
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Average salary estimate

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$150000K
$170000K

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What You Should Know About Principal Device Engineer, Diamond Foundry

Join Diamond Foundry Inc. as a Principal Device Engineer and become a vital part of our innovative team located in the heart of the Bay Area, California. Our mission is groundbreaking: we are not just producing the world's first single-crystal diamond wafers, but we're also revolutionizing tech industries like AI, electric vehicles, and 5G/6G wireless communication. Here at Diamond Foundry, we’re passionate about pushing the boundaries of technology while maintaining sustainable practices. In this role, you will leverage your strong problem-solving skills to design and fabricate cutting-edge semiconductor devices. You will simulate device operating characteristics using state-of-the-art tools like Sentaurus and TCAD, while also fabricating and characterizing prototypes to ensure optimal electrical performance. Collaborating with our dynamic cross-functional teams, you will integrate your developed devices into emerging products, always prioritizing circuit compatibility and system-level performance. We are looking for a PhD holder in Electrical Engineering or Materials Science, with a rich background in semiconductor device development. With an enthusiastic approach and hands-on experience in electrical characterization and fabrication processes, you can make a meaningful impact here. At Diamond Foundry, we don't just focus on technological advancement; we ensure our employees are supported through competitive salaries and a range of benefits, fostering a positive work-life balance. If you’re ready to help us put a diamond behind every chip, we would love to hear from you!

Frequently Asked Questions (FAQs) for Principal Device Engineer Role at Diamond Foundry
What responsibilities does a Principal Device Engineer at Diamond Foundry Inc. have?

As a Principal Device Engineer at Diamond Foundry Inc., you will engage in a variety of responsibilities crucial to our semiconductor device development. You will simulate semiconductor devices based on market-driven specifications, utilizing advanced modeling tools like Sentaurus and TCAD. Your role will also involve fabricating and characterizing prototype semiconductor devices such as p/n junction transistors, assessing their electrical performance through rigorous experimental tests. Additionally, you will collaborate with cross-functional teams to ensure smooth integration of these devices into our innovative products.

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What qualifications are needed for the Principal Device Engineer role at Diamond Foundry Inc.?

To be considered for the Principal Device Engineer position at Diamond Foundry Inc., candidates are required to hold a PhD in Electrical Engineering, Materials Science, or a related field. A strong background in semiconductor device development, particularly in designing and fabricating p/n junction transistors using homo- or hetero-junctions with Wide Band Gap materials is essential. Candidates should also possess expertise in device physics, bandgap engineering, and power electronics devices, alongside hands-on experience with semiconductor fabrication processes and failure analysis.

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What is the salary range for the Principal Device Engineer at Diamond Foundry Inc.?

The salary range for a Principal Device Engineer at Diamond Foundry Inc. is competitive, typically falling between $150,000 and $170,000 a year. This compensation reflects the crucial role this position plays in our mission to innovate within the semiconductor industry, as well as our commitment to attracting and retaining top talent dedicated to technological advancement.

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What benefits does Diamond Foundry Inc. offer to its Principal Device Engineers?

Diamond Foundry Inc. believes in supporting its employees comprehensively. As a Principal Device Engineer, you will have access to a variety of benefits, including health insurance, retirement savings plans, and life and disability insurance programs. Employees also enjoy opportunities for flexible spending accounts and several programs offer paid and unpaid time away from work, ensuring a balanced approach to work and personal life.

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How does teamwork play a role in the Principal Device Engineer position at Diamond Foundry Inc.?

Teamwork is fundamental to the Principal Device Engineer role at Diamond Foundry Inc. You will work closely with various cross-functional teams, collaborating seamlessly to integrate newly developed semiconductor devices into our advanced products. This collaborative environment ensures that your designs align with circuit specifications and optimizes overall system performance, which is crucial for our ongoing innovation in tech manufacturing.

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Common Interview Questions for Principal Device Engineer
Can you describe your experience with semiconductor device fabrication?

In responding to this question, it’s essential to highlight your hands-on experience in semiconductor fabrication processes. Discuss specific techniques you have used, and any challenges you've encountered, alongside how you overcame them. Pointing out any successful projects or innovations you contributed to will also strengthen your answer.

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What tools have you used for device simulation and modeling?

When discussing tools for simulation and modeling in your interview, mention specific software such as Sentaurus or TCAD. Share your understanding of how these tools aid in predicting device performance and your familiarity with their functionalities. Consider giving an example of a project where these tools were pivotal in your analysis.

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How do you ensure the reliability and performance of semiconductor devices?

To effectively answer this question, discuss methodologies you employ in characterizing semiconductor devices. Elaborate on the testing and validation processes that you implement, as well as your approach to analyzing failure points and iterating designs based on findings.

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What challenges have you faced in previous semiconductor projects, and how did you address them?

In answering this question, identify a specific challenge you've encountered in a previous project. Describe the context, the impact it had on your work, and the strategy you employed to resolve it. Emphasize your problem-solving skills and willingness to collaborate with others to find solutions.

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Describe your approach to working in a fast-paced, collaborative environment.

These environments require adaptability and communication. Share examples from past experiences where you successfully worked on cross-functional teams. Elaborate on how you prioritize tasks, communicate changes, and ensure everyone is aligned towards common goals to achieve success in dynamic settings.

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What is your understanding of Wide Band Gap materials in semiconductor design?

You should demonstrate your comprehensive understanding of Wide Band Gap materials, focusing on their advantages in semiconductor applications like high power and temperature resistance. Explain any relevant experiences you have had with these materials in your designs or research.

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How do you approach integrating devices into existing product systems?

Responding to this question effectively involves discussing how you evaluate the systems' compatibility with the newly developed devices. Highlight your collaboration with design and system engineers to ensure smooth integration and your methods for addressing any compatibility issues encountered during the process.

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What role does bandgap engineering play in your design process?

This is an excellent opportunity to delve into your technical knowledge about bandgap engineering. Highlight specific projects where you’ve applied these principles to enhance device performance. Explain the methods you used to analyze and manipulate bandgap properties to meet design requirements.

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How do you stay current with advancements in semiconductor technology?

Your answer should reflect your commitment to continuous learning and professional development. Mention resources you use such as academic journals, industry conferences, and networking with other professionals in the field. Additionally, discussing any courses or certifications shows your proactive approach to staying informed.

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Why are you interested in working at Diamond Foundry Inc.?

This question allows you to connect your professional background and aspirations with Diamond Foundry's mission. Discuss specific aspects of the company's innovative approach and sustainability practices that resonate with you. Emotionally connecting your values with their goals can make your answer more compelling.

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Just Diamond. No Mining.Our mission is to create the future of diamond. We value innovation, craftsmanship, simplicity, sustainability, and enabling technologies that make a difference.

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Full-time, on-site
DATE POSTED
March 21, 2025

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