Full-Time

Lead Process Engineer

Wafering

Posted on 10/4/2025

Coherent

Coherent

5,001-10,000 employees

Global provider of lasers and systems

No salary listed

Easton, PA, USA

In Person

US Top Secret Clearance Required

Category
Process Engineering
Requirements
  • Bachelor's degree with 7 years of related experience, MS with 5 years experience, or PhD with 3 years of experience in Mechanical Engineering, Materials Science, Physics, Chemistry, or related STEM disciplines
  • Minimum of 3-7 years of hands-on experience with process control and development in an industrial manufacturing setting
  • Experience with statistical analysis tools such as JMP, Minitab, or R
  • General knowledge of semiconductor materials, technological processes used in their manufacturing and methods of materials characterization
  • Demonstrated ability to achieve results independently and working with others
  • Strong ability to multitask on numerous development fronts while maintaining process control (yields and process stability)
  • Ability to recommend and implement improvements
  • Excellent interpersonal and communication skills
  • ITAR compliance, this position requires candidates to be a U.S. Citizen, Permanent Resident Alien, or Protected Individual per 8 U.S.C. 1324b(a)(3)
  • Hands-on measurement experience is preferred
  • Substrate slicing and/or grinding experience preferred
  • Experience analyzing and interpreting characterization data for wafer shape is required.
Responsibilities
  • Control, optimize, and develop substrate slicing manufacturing processes. Contribute to ideas, concepts, approaches, and engineering solutions.
  • Focus on wafering technological processes with the goals of improving yields, throughput and meeting customer and business requirements.
  • Ensure that each technological step is properly documented, reviewed, validated, approved and provides feedback to the R&D Center that will help improve manufacturing processes, improve yield and lower cost.
  • Use statistical tools (SPC, DOE, etc.) to characterize the wafering processes to determine process capability and reliability while identifying bottlenecks. Analyze process/product failure modes and provides feedback for process optimization.
  • Adhere to project timelines and effectively communicates project progress and challenges.
  • Provide technical and engineering support to the manufacturing team. Instruct and train process operators and technicians.
  • Establish the technological process steps of commercial substrate wafering. Ensure that each operational process step is performed in accordance with our standard procedures.
  • Perform process and equipment troubleshooting, problem identification, and corrective action activities.
  • Assist with planning, scheduling, and resource allocation for all wafering related items.
  • Participate in R&D Programs by organizing and carrying out project activities. Adhere to the project timelines and milestones
  • Summarize experimental results in formal or informal written and oral reports. Participate in technology meetings by providing reports, plans, meeting minutes, action items and other requested documentation.
  • Contribute to the work of the quality assurance team by providing expertise in process characterization. Serve as a resource to the QA personnel with respect to the characterization techniques, equipment, and procedures.
  • Actively participate in characterization of substrates. Analyze the obtained characterization data to establish fundamental trends and correlations and to develop scientifically sound conclusions. Use the results of characterization to establish factors that affect wafer quality and make recommendations for technology optimization.
  • Communicate experimental and analytical results to the SiC substrate team in a timely manner to accelerate technological progression.
Desired Qualifications
  • Substrate slicing and/or grinding experience preferred
  • Hands-on measurement experience preferred

Coherent manufactures lasers and laser-based systems used in microelectronics, medical diagnostics, and materials processing. These products work by integrating laser sources with specialized optics, software, and electronics to perform precise tasks like cutting, measuring, or imaging. Unlike many competitors, the company maintains a diverse presence across commercial, industrial, and defense sectors while generating recurring revenue through service and consumables. Its goal is to provide scalable laser solutions that help researchers and manufacturers improve their technical capabilities and production efficiency.

Company Size

5,001-10,000

Company Stage

IPO

Headquarters

Santa Clara, California

Founded

1966

Simplify Jobs

Simplify's Take

What believers are saying

  • AI datacenter demand drives 27% YoY revenue growth to $1.81B in Q3 fiscal 2026 with backlog into 2028.
  • Datacenter and communications segment surges 40% YoY, comprising 75% of total revenue.
  • Analysts project $12B revenue by 2029 from 24% annual growth fueled by photonic innovations.

What critics are saying

  • Negative $537M free cash flow from $2B AI capex forces dilutive equity raises within 6-12 months.
  • Tower Semiconductor erodes InP laser share with integrated silicon photonics in 12-24 months.
  • US-China tariffs slash 25% of Asia revenue from photonics exports in 12-18 months.

What makes Coherent unique

  • Coherent leads in silicon photonics with 400 Gbps-per-lane breakthrough alongside Tower Semiconductor.
  • NVIDIA's $2B investment positions Coherent as primary supplier for 2027-2028 AI hardware optics.
  • Advanced 150mm/200mm SiC epitaxy enables 10kV power devices for AI datacenters and electrification.

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Company News

The Associated Press
Apr 9th, 2026
Coherent advances silicon carbide epitaxy for 10kV AI datacenter and industrial power devices

Coherent Corp has announced advancements in its silicon carbide epitaxy capabilities, enabling power devices up to 10kV for AI datacentre and industrial power applications. The company's 150mm and 200mm thick epitaxy platforms support device architectures up to 10kV in production, with demonstrated capability extending beyond that threshold. The technology targets growing demand for efficient, high-voltage power systems across renewable energy, rail, fast-charging infrastructure and grid applications. For AI datacentres, the advancement addresses the need for ultra-efficient, high-power-density architectures where improved conversion efficiency reduces energy consumption and operating costs. The development allows customers to build more compact, energy-efficient power conversion systems for multi-megawatt datacentres and industrial infrastructure whilst meeting large-scale deployment reliability requirements.

The Bee
Apr 9th, 2026
Coherent advances Silicon Carbide thick epitaxy capabilities for high-voltage AI datacenter and industrial power applications up to 10kV.

Coherent advances Silicon Carbide thick epitaxy capabilities for high-voltage AI datacenter and industrial power applications up to 10kV. GlobeNewswire | Coherent Corp. Today at 1:05pm PDT SAXONBURG, Pa., April 09, 2026 (GLOBE NEWSWIRE) - Coherent Corp. (NYSE: COHR), a global leader in photonics, today announced advancements in its silicon carbide (SiC) epitaxy capabilities, enabling power devices up to 10kV for next-generation AI datacenter and industrial power applications. As industrial electrification accelerates, demand is rising for more efficient, higher-voltage power systems across renewable energy, rail, fast-charging infrastructure, and grid infrastructure. Meanwhile, the growth of AI workloads is driving the need for ultra-efficient, high-power-density architectures in datacenters, where every gain in conversion efficiency reduces energy consumption and operating cost. Coherent's latest 150mm and 200mm thick epitaxy platforms support device architectures up to 10kV in production. These platforms have demonstrated capability extending even beyond 10kV, enabling improved performance in demanding operating environments. These advancements allow customers to develop more compact, energy-efficient power conversion systems for both multi-megawatt datacenters as well as industrial infrastructure, while meeting the reliability requirements of large-scale deployments. "Next-generation datacenter power architectures and high-voltage industrial systems are key drivers for silicon carbide adoption," said Gary Ruland, Senior Vice President, Silicon Carbide LLC. "Our new thick epitaxy capability for multi-kilovolt SiC devices enables customers to achieve higher efficiency and power density in critical applications such as energy infrastructure, high-capacity uninterruptible power supplies, and advanced power distribution systems in AI datacenters." Coherent continues to expand its silicon carbide technology portfolio, from substrates to advanced epitaxy, to support customers across industrial, automotive, and energy markets, including the rapidly growing segment of high-efficiency datacenter power systems, reinforcing its leadership in wide-bandgap semiconductor materials. About Coherent Coherent is the global photonics leader. The Bee News harness photons to drive innovation. Industry leaders in the datacenter, communications, and industrial markets rely on Coherent's world-leading technology to fuel their own innovation and growth. Founded in 1971 and operating in more than 20 countries, Coherent brings the industry's broadest, deepest technology stack; unmatched supply chain resilience; and global scale to help its customers solve their toughest technology challenges. For more information, visit The Bee News at coherent.com. Media Contact: [email protected] This is a paid placement. For further inquiries, please contact GlobeNewswire directly.

Yahoo Finance
Apr 3rd, 2026
Steve Cohen trims Coherent stake despite $2B NVIDIA deal and AI momentum

Billionaire Steve Cohen's Point72 Asset Management has trimmed its stake in Coherent Corp., reducing its holding by nearly 14% to 3.3 million shares in the fourth quarter of 2025. The fund has held the position since Q2 2023, building it to 4.2 million shares by Q2 2024 before recent reductions. Coherent has attracted hedge fund interest following a multi-year strategic agreement with NVIDIA, which is investing $2 billion to expand the company's R&D and US manufacturing capacity. The deal positions Coherent as NVIDIA's primary supplier for its 2027-2028 hardware roadmap, particularly in silicon photonics and co-packaged optics for AI infrastructure. In Q2 fiscal 2026, Coherent reported revenue of $1.7 billion, exceeding analyst estimates, driven by strong demand for optical networking products.

Yahoo Finance
Apr 1st, 2026
Billionaire Rob Citrone opens new position in Coherent Corp. after securing multibillion-dollar NVIDIA deal

Coherent Corp. has secured a new investment from billionaire Rob Citrone's Discovery Capital Management, which opened a position in the fourth quarter of 2025. The company manufactures optoelectronic components and laser systems for industrial, communications and electronics markets. Coherent has positioned itself as an AI infrastructure player through partnerships with NVIDIA. At the 2026 OFC Technology Conference, it announced a multibillion-dollar deal to supply co-packaged optics and high-power lasers for GPU packages, addressing data transmission bottlenecks in AI clusters. The company reported second-quarter revenue of $1.69 billion, up 17% year-on-year, with its Datacenter Communications segment now representing 72% of total revenue. Coherent is ramping production of higher-margin 1.6T transceivers.

Yahoo Finance
Apr 1st, 2026
Coherent and Tower Semiconductor achieve 400 Gbps silicon photonics breakthrough for 3.2T optical transceivers

Coherent Corp. and Tower Semiconductor announced a breakthrough demonstrating 400 Gbps-per-lane silicon photonics data transmission for next-generation 3.2T optical transceivers. The development, revealed in late March 2026, targets AI datacentres and co-packaged optics applications. The collaboration combines Coherent's InP laser technology with Tower's silicon photonics platform, supporting the company's AI datacentre optics strategy alongside its existing NVIDIA multi-year agreement. Coherent also presented at ICDT 2026 in Chongqing and SEMICON China 2026 in Shanghai. Analysts project Coherent's revenue could reach $11.4 billion by 2029, requiring 22% yearly growth. However, investors face risks from heavy capital expenditure requirements and potential margin pressure from intense competition, even as the silicon photonics milestone strengthens the company's position in high-speed optical links.

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