Two-Photon Lithography & Process Engineer

University of British Columbia - Quantum Matter Institute
Vancouver, British Columbia V6T 1Z4
  • Job Type
    Employee
  • Job Status
    Full Time

The Stewart Blusson Quantum Matter Institute at UBC (SBQMI) is a world-leading venture advancing research into solid state systems and phenomena that explicitly involve quantum mechanics. Among its core areas of expertise are the development of materials hosting novel quantum electronic states, and measurement of nanoscale electronic and photonic structures built from these materials, whose device characteristics display remarkable new paradigms of operation.

SBQMI has invested heavily on acquiring a state-of-the-art two-photon 3D lithography tool that enables device fabrication at the sub-micron. The Two-Photon Lithography & Process Engineer is the dedicated engineer responsible for the tool, regarding all aspects of its operation, including user training and liaising with users, with the aim of delivering consistent and reliable service, and is responsible for fully exploiting the capabilities of this tool. To this end, the post holder, who should already have experience in lithography, micro/nano-fabrication, and process development, will plan, design and deliver complete micro/nano-fabrication, integration, and packaging engineering solutions, for a number of different stakeholders, and working on various projects. The individual is expected to work independently, with a proactive and creative spirit and in close collaboration with colleagues, in order to deliver what is required of the role.

The post holder also has a duty to ensure that all tasks conducted within SBQMI labs are performed in a safe manner that conforms to current legislation and work place protocols.

Project details:

Photonic integrated circuit technology is used for many applications including optical communications, optical computing, and sensing. A major challenge facing the industry is connecting multiple integrated photonic components together with low insertion loss, in a cost-effective manner, into a package suitable for commercialization. A promising approach is to create “photonic wirebonds”, namely optical waveguides that look similar to conventional electrical wirebonds (https://www.vanguard-automation.com/photonic-wire-bonding-2/). Photonic wirebonds, which are fabricated in a polymer photoresist through two-photon absorption using a femtosecond laser, have been shown to offer <1 dB coupling efficiency between various optical components including between single mode fibres and silicon photonics, and between lasers and silicon photonics. UBC has purchased a dedicated photonic wirebond tool commercialized by Vanguard Automation - https://www.vanguard-automation.com/machine-solutions/. Despite the potential advantage of high-throughput packaging and low cost, no commercial products yet exist using this approach.

For practical applications that use photonic wirebonds, we require getting this technique to be robust, reliable, fast, and reproducible. We need to develop a suite of photonic integration options between different types of devices. In addition, we need to demonstrate their effectiveness in practical applications, and to develop a product manufacturing approach that includes photonic wirebonds.

The objectives of this project are to develop capabilities of creating photonic wirebonds between: 

1) Single mode fibres and fibre arrays to silicon photonic chips;
2) Semiconductor optical amplifiers to silicon photonics;
3) Lasers to silicon photonic chips.

 

Working with our industrial partners, we will develop a prototyping packaging service including optical fibre photonic wirebonds. This will allow our end users to perform basic validation in their relevant environments, including performing reliability testing. We will deliver packages that contain, for example, a Kyocera carrier, optical fibres, optical amplifiers, lasers, and CMOS electronics chips.

 

ORGANIZATIONAL STATUS

The Two-Photon Lithography & Process Engineer reports to Lukas Chrostowski, the Principal Investigator in charge of the Photonic Wirebonding Project. The post holder will work independently and pro-actively, and will be often required to use the SBQMI cleanroom and to collaborate closely with researchers.

 

WORK PERFORMED

The process engineer will be the primary engineer for the Vanguard Automation SONATA1000 (https://www.vanguard-automation.com/machine-solutions/). The process engineer will also use other Nanofabrication tools including the JEOL8100FS 100 keV Electron Beam Lithography tool, the Heidelberg MLA150 optical lithography tool, and the Cobra ICP thin-film silicon etcher, and will use other packaging processes including wafer dicing, electrical wire bonding, attaching chips on carriers, and encapsulating them. The Engineer will define requirements for materials and processes used in the fabrication of micro/nano-structured devices; produce specifications and other documents to manage the development of devices and processes; and develop and qualify new processes to meet requirements. The Engineer will also conduct analyses to determine reasons for failures of materials, devices or processes, implementing corrective and preventive actions.

The following items reflect the most important tasks associated with the post. The list is not complete and may change as the role evolves with time. The process engineer:

 

1.            Plans, designs, develops and delivers innovative process and packaging specifications for the realization of micro- and nano-structured devices, using techniques that include, but are not limited to, two-photon lithography, electron-beam lithography, photolithography, wet and dry etching, physical and chemical vapour deposition, metrology, and device testing.

2.            Working on a number of different projects, develops innovative technologies for micro/nano-structured device packaging and transfers such technologies to a diverse user community that includes internal and external stakeholders and industrial partners.

3.            Advises on the design and feasibility of micro/nano-engineering aspects of various research projects for a wide range of internal and external stakeholders.

4.            Designs and develops novel capabilities of existing and new nano/micro-fabrication and packaging equipment, designs and develops experiments, and finds solutions to complex engineering problems.

5.            Monitors the performance of processes that make use of the two-photon lithography tool and engineers all necessary interventions, interfaces with the tool manufacturer, and ensures that these processes remain operational and perform to specifications.

6.            Is the main person responsible for SBQMI’s two-photon lithography tool, regarding all aspects of its operation, including user training and liaising with users, with the aim of delivering consistency and reliability.

7.            Spends 15% of work time in keeping current with the Facility’s micro and nanofabrication tools and processes by spending time in the cleanroom, by liaising with colleagues as appropriate and by contributing to enhancing the Institute’s capabilities in the field.

8.            Offers time, skills and expertise to other SBQMI labs and projects, as instructed by the Director, Nanofabrication Facilities, and performs other tasks relevant to the job tasks, as required.

9.         Contributes to new intellectual property in packaging, integration, and photonic integrated circuits. Writes, or contribute to writing, journal and conference papers. Interacts with industry partners, including creating proposals for new processes.


 

Salary will be commensurate with qualifications and experience. UBC offers a competitive benefits package including extended medical, dental, life insurance, professional development funding and pension.

 

 

 

Equity and diversity are essential to academic excellence. An open and diverse community fosters the inclusion of voices that have been underrepresented or discouraged. We encourage applications from members of groups that have been marginalized on any grounds enumerated under the B.C. Human Rights Code, including sex, sexual orientation, gender identity or expression, racialization, disability, political belief, religion, marital or family status, age, and/or status as a First Nation, Metis, Inuit, or Indigenous person. All qualified candidates are encouraged to apply; however, Canadians and permanent residents will be given priority.


Requirements

Undergraduate degree in Engineering, Applied Science, Physics, Chemistry or another relevant discipline. Master's or PhD degree in Engineering, Physics, Chemistry or other relevant discipline is preferred. A minimum of 5 years of experience or the equivalent combination of education and experience.

Essential qualifications:

- Computer skills, including mask layout and CAD-related software

- Experience in a research and/or research & development setting, involving micro and nanofabrication process development

- Previous working knowledge and experience in operating lithography and/or fabrication equipment, as evidenced by a portfolio of fabricated devices

- Proven working knowledge and hands-on experience in a range of other micro/nano-fabrication techniques, including but not limited to: photolithography, resist processing, wet and dry etching, and packaging.

- Proven awareness of safe work practices

- Demonstrated ability to creatively solve engineering problems

- Lab instrumentation/equipment fault finding and fault diagnosis skills

- Demonstrated team work qualities

Desirable qualifications:

- Experience with two-photon lithography systems

- Proven working knowledge of analysis techniques, including but not limited to: scanning electron microscopy, ellipsometry, and contact profilometry

- Proven working knowledge of photonic test techniques, including but not limited to: tunable laser transmission measurements of photonic integrated circuits, optical vector network analyzers, with an emphasis on measuring optical loss.

- Knowledge in modelling and design of optical sub-assemblies and photonic integrated circuits.

- Knowledge of and experience in Linux-based operating systems and computer programming

- Published research involving micro and nanofabrication

- Knowledge of high-end lithography software

- Knowledge of software-hardware interface technologies

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Two-Photon Lithography & Process Engineer

University of British Columbia - Quantum Matter Institute
Vancouver, British Columbia V6T 1Z4

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