Silicon Photonics Process Engineer at Celestial AI

Singapore

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Not SpecifiedCompensation

Mid-level (3 to 4 years)Experience Level

Full TimeJob Type

UnknownVisa

Semiconductors, Photonics, Data Centers, AIIndustries

Requirements

MSc or Ph.D. in Electrical Engineering, Physics, Materials Science or related field
5-10 years of experience in silicon photonics design and/or photonics process integration
Strong background in integrated silicon photonics design and manufacturing
Experience working with silicon photonics foundries, including hands-on experience with process documentation and familiarity with tape-out procedures
Strong problem-solving skills and the ability to work independently in a fast-paced environment
Excellent communication and collaboration skills
Preferred Qualifications
Experience with new silicon photonics process development and technology transfers
Hands-on experience with layout tools (e.g. Cadence Virtuoso, OptoCompiler)
Experience with data analysis tools and scripting (e.g. JMP, Python) for analysis of test data

Responsibilities

Foundry on-site technical expert in silicon photonics to assist and oversee silicon photonics foundry process development
Provide on-site support to resolve silicon photonics design and integration issues in coordination with the internal design team and externally foundry process team
Work closely with foundry to define, develop and manage process development plans
Document process capabilities, design rules, and other design-for-manufacturing (DFM) guidance in collaboration with foundry and internal stakeholders
Help define, oversee and track process qualification plans
Manage photonics wafer fabrication lots from tape-out through delivery, ensuring quality and timeliness
Track and communicate lot status, issues, and risks with internal stakeholders

Skills

Key technologies and capabilities for this role

Silicon PhotonicsPhotonics Process EngineeringOptical Interconnects2.5D PackagingOptical ChipletsOptical InterposersOMIBFoundry ProcessesPhotonic Fabric

Questions & Answers

Common questions about this position

Is this role remote or office-based?

The role is based in the Singapore office, involving on-site work with an external foundry partner in Asia while interfacing with the US design team.

What are the main responsibilities of this Silicon Photonics Process Engineer role?

Responsibilities include serving as the foundry on-site technical expert, providing support to resolve design issues, defining process development plans, documenting process capabilities and DFM guidance, overseeing process qualification, and managing wafer fabrication lots.

What skills or experience are required for this position?

The role requires expertise in silicon photonics process development, foundry management, on-site technical support, process qualification, and wafer fabrication, with strong coordination skills between design and foundry teams.

What is the team structure like for this role?

You will join the photonics team in the Singapore office, acting as the primary interface between the external foundry partner in Asia and the internal design team in the US.

What makes a strong candidate for this Silicon Photonics Process Engineer role?

A strong candidate is highly motivated, detail-oriented, with deep expertise as a foundry on-site technical expert in silicon photonics, skilled in process development, issue resolution, and stakeholder coordination.

Celestial AI

Optical interconnects for high-performance computing

About Celestial AI

Celestial AI focuses on high-performance computing for hyperscale data centers with its technology called Photonic Fabric™, an optical compute interconnect. This technology reduces DRAM requirements by up to 35% and lowers power consumption while increasing bandwidth capacity, which is essential for multi-tenant cloud environments. Additionally, it allows for the disaggregation of High Bandwidth Memory (HBM) using optics instead of traditional connections. The goal is to provide optical connectivity that supports advancements in Generative AI and complex workloads.

Sunnyvale, CaliforniaHeadquarters

2020Year Founded

$329.6MTotal Funding

SERIES_CCompany Stage

Data & Analytics, Hardware, AI & Machine LearningIndustries

51-200Employees

Benefits

Health Insurance

Vision Insurance

Dental Insurance

Life Insurance

Company Equity

Risks

Emerging competition from companies like Lightmatter and Ayar Labs.

Potential integration challenges with existing data center infrastructure.

Dependency on limited suppliers for photonic components poses supply chain risks.

Differentiation

Celestial AI's Photonic Fabric™ offers unique optical compute interconnect technology.

The company reduces DRAM requirements by up to 35%, saving billions annually.

Celestial AI enables disaggregation of HBM over optics, enhancing bandwidth capacity.

Upsides

Acquisition of Rockley Photonics' IP strengthens Celestial AI's competitive position.

$175 million Series C funding supports further innovation and market expansion.

Growing demand for energy-efficient solutions aligns with Celestial AI's sustainable focus.

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