Process Development Engineer - Back End of Line

About Atomic Semi

Atomic Semi is building a small, fast semiconductor fabrication facility.

We aim to construct this with current technology and some simplifications, designing our own tools for rapid iteration and improvement.

Our team consists of exceptional, hands-on engineers across mechanical, electrical, hardware, computer, and process disciplines. We will manage the entire stack from atoms to architecture. Our team is optimistic about the future and committed to pushing technological boundaries.

We believe smaller and faster is better, and building our own tools is advantageous.

Our lab is equipped with 3D printers, microscopes, e-beam writers, fabrication equipment, and we are prepared to invent new tools as needed.

Founded by Sam Zeloof and Jim Keller. Sam is known for chip fabrication in his garage, and Jim has over 40 years of leadership in the semiconductor industry.

About the role

As a Process Development Engineer, you will bridge BEOL processing and advanced packaging, developing integration schemes for next-generation semiconductor devices. You should have hands-on experience in interconnect metallization, dielectric processes, or chip-to-package connections, and be eager to explore beyond conventional methods. The role requires translating complex nanofabrication fundamentals into practical processes.

This is a high-ownership, autonomous role within a fast-paced startup. You will contribute to R&D processes and influence tool design. Candidates must have cleanroom experience and a history of developing nanofabrication recipes from scratch across multiple process steps.

Responsibilities

• Develop and optimize bond pad structures (e.g., UBM, RDL pads, interconnect schemes)
• Characterize material interfaces using SEM, EDX, and electrical testing to ensure reliable chip-to-package connections
• Create process specifications and transfer recipes from R&D to production
• Collaborate with the packaging team to troubleshoot BEOL structure issues
• Analyze failure modes at the BEOL-package interface and implement corrective measures

Required Experience

Nice-to-have

Working at Atomic Semi

We are an early-stage hardware startup with solid funding, world-class advisors, and a lab / office in San Francisco, CA.

Compensation

The annual salary range for this role is $117,000 – $188,000, based on qualifications and experience. Our total package includes generous equity.

Benefits

We are an equal opportunity employer and do not discriminate based on race, religion, national origin, gender, sexual orientation, age, veteran status, disability, or other protected statuses.

Export Control Analysis : This role involves access to technology subject to U.S. export controls. Employment is contingent upon compliance with these regulations.

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