PhD in Electronic and Electrical Engineering

Location: United Kingdom
Application Deadline: 1 May 2024
Published: 1 month ago

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Key Information

Fully Funded Swansea University PhD Scholarship: Gate-oxide reliability of wide bandgap power MOSFETs: offline prediction of lifetime and online monitoring of degradation 

Funding providers: Swansea University

Subject areas: Electronic and Electrical Engineering

Project start date:

  • July 2024 (Enrolment open from mid-June)
  • October 2024 (Enrolment open from mid-September) 

Supervisors:

Aligned programme of study: PhD in Electronic and Electrical Engineering

Mode of study: Full-time 

Project description:

The wide bandgap (WBG) power MOSFET is more prone to early failure than its Si counterparts despite its recent success. One of the most significant contributing factors to the overall reliability of these devices is degradation or even complete failure of the gate oxide. Specifically, gate threshold voltages shift from their original value with prolonged application, mainly due to gate oxide thickness reduction and high electric fields.

Reliability refers to a product’s performance remaining within specifications for a specific period of time. According to the semiconductor industry, after 10 years of operation under nominal conditions, at most 100 devices per million can fail from oxide breakdown.

The goal of this project is to a) study and examine the failure mechanisms of WBG (particularly gallium nitride) devices, b) compare different methodologies for predicting or modelling the gate-oxide reliability of WBG power MOSFETs and identify the gap for both offline reliability and lifetime estimation and possible online condition monitoring from transistor signals, c) design, simulate and practically implement the required circuit configuration and the final multi-channel test rig for concurrent reliability testing and examining the failure mechanisms, d) develop conventional statistical approaches and artificial intelligence (AI) models from data provided by testing a large number of samples under controlled conditions to validate and generalise the research findings and e) recommend future work to implement the realised improvements.

This PhD project aims to create a meaningful impact through the collaboration between EPRG (Engineering and Power Research Group) at Swansea University and Vishay Intertechnology.

Eligibility

Candidates must hold an undergraduate degree at 2.1 level in Engineering or similar relevant science discipline. If you are eligible to apply for the scholarship (i.e. a student who is eligible to pay the UK rate of tuition fees) but do not hold a UK degree, you can check our comparison entry requirements (see country specific qualifications). Please note that you may need to provide evidence of your English Language proficiency.

Due to funding restrictions, this scholarship is open to applicants eligible to pay tuition fees at the UK rate only, as defined by UKCISA regulations. 

If you have any questions regarding your academic or fee eligibility based on the above, please email pgrscholarships@swansea.ac.uk with the web-link to the scholarship(s) you are interested in.

Funding

This scholarship covers the full cost of UK tuition fees and an annual stipend at UKRI rate (currently £18,622 for 2023/24).

Additional research expenses will also be available.

How to Apply

To apply, please complete your application online with the following information:

  1. Course choice – please select Electronic and Electrical Engineering / PhD / Full-time / 3 Years / July (or October)In the event you have already applied for the above programme previously, the application system may issue a warning notice and prevent application, in this event, please email pgrscholarships@swansea.ac.uk where staff will be happy to assist you in submitting your application.
  2. Start year – please select 2024
  3. Funding (page 8) –
  • ‘Are you funding your studies yourself?’ – please select No
  • ‘Name of Individual or organisation providing funds for study’ – please enter ‘RS563 – Gate-oxide reliability’

*It is the responsibility of the applicant to list the above information accurately when applying, please note that applications received without the above information listed will not be considered for the scholarship award.

One application is required per individual Swansea University led research scholarship award; applications cannot be considered listing multiple Swansea University led research scholarship awards.

We encourage you to complete the following to support our commitment to providing an environment free of discrimination and celebrating diversity at Swansea University:

As part of your online application, you MUST upload the following documents (please do not send these via email). We strongly advise you to provide the listed supporting documents by the advertised closing date, where possible:

  • CV
  • Degree certificates and transcripts (if you are currently studying for a degree, screenshots of your grades to date are sufficient)
  • A cover letter including a ‘Supplementary Personal Statement’ to explain why the position particularly matches your skills and experience and how you choose to develop the project.
  • Two references (academic or previous employer) on headed paper or using the Swansea University reference form. Please note that we are not able to accept references received citing private email accounts, e.g. Hotmail. Referees should cite their employment email address for verification of reference.
  • Evidence of meeting English Language requirement (if applicable).
  • Copy of UK resident visa (if applicable)
  • Confirmation of EDI form submission (optional) 

Informal enquiries are welcome, please contact Dr Mohammad Monfared (mohammad.monfared@swansea.ac.uk).

*External Partner Application Data Sharing – Please note that as part of the scholarship application selection process, application data sharing may occur with external partners outside of the University, when joint/co- funding of a scholarship project is applicable.

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