Ga2o3 Material and Device Studies

Il y a 2 mois


Lyon, France (INSA) Institut National des Sciences Appliquees de Lyon Temps plein

**Ga2O3 MATERIAL AND DEVICE STUDIES - TOWARDS AN UWBG FOR POWER ELECTRONICS**:

- Réf **ABG-122901**
- Sujet de Thèse- 15/04/2024- Contrat doctoral- (INSA) Institut National des Sciences Appliquees de Lyon- Lieu de travail- Lyon -Villeurbanne - Auvergne-Rhône-Alpes - France- Intitulé du sujet- Ga2O3 MATERIAL AND DEVICE STUDIES - TOWARDS AN UWBG FOR POWER ELECTRONICS- Champs scientifiques- Sciences de l’ingénieur
- Electronique
- Matériaux
- Mots clés- Ga2O3, UWBG, p-doping, deep traps, defect spectroscopy, DLTS, DLOS, power components, power conversion/switching.**Description du sujet**:
**References**:
[1] M. Orita et al., Appl. Phys. Lett. 77 (2000) 4166

[2] N. Ueda et al., Appl. Phys. Lett. 70 (1997) 3561

[3] E. Chikoidze, et al, J. Appl. Phys. **120** (2016) 025109.

[4] J. Yang et al., _ECS J. Solid State Sci. Technol._ _**7**, (2018)

[5] S. J. Pearton, et al., _J. Appl. Phys. _**124** (2018) 220901

[6] K. Tetzner e., _IEEE Electron Dev. Lett. _**40** (2019) 1503

**Keywords**: Ga2O3, UWBG, p-doping, deep traps, defect spectroscopy, DLTS, DLOS, power components, power conversion/switching.

**Objectives of the thesis**: The overall objective is **to characterize the properties of electrically active defects in Ga**2**O**3** epitaxial layers.** These studies will be carried out initially to assist the GEMaC laboratory in charge of the growth of p-type material, then on vertical structures of the pin diode type in order to improve growth and technology in this sector. Particular attention will be paid to **identifying the origin of defects** in order to distinguish those due to growth from those induced by technological processes. The study will also aim **to correlate the spectroscopy data of the defects with possible anomalous electrical characteristics of the devices**. The characterization of generation-recombination type centers will be completed by electro-optical measurements such as the lifetime of minority carriers in photocurrent and electroluminescence measurements on pin structures. Finally, **the signatures of the traps (activation energy, capture cross section) determined can be used as injectable parameters for the modeling of the components.**

Gallium oxide, thanks to its intrinsic properties and the availability of bulk substrates, is predicted to be the material of choice for next-generation high-power devices suitable for harsh environments. The GOPOWER project, unique in France, aims to accelerate the demonstration of the exceptional potential of gallium oxide through a breakthrough in the technology of p-type materials, thus allowing France to remain highly competitive at the international level, given the considerable efforts made in research projects deployed in the United States and Japan.

**Scientific breakthroughs**: Many scientific questions remain to be clarified:

- Understand the mechanisms of p doping in Ga2O3 and the associated defects.
- Interpret the fine characterization of defects (nature, structure) correlated with EPR (electronic paramagnetic resonance) measurements at the INSP.
- Set up techniques for characterizing defects on a material with a very wide band gap (4.9 eV). Indeed, the classic DLTS technique will be supplemented here by optical or electro-optical techniques such as ODLTS (Optical DLTS) and DLOS (Deep Level Optical Spectroscopy), allowing the activation and observation of very deep defects thanks to their photoionization.
- DLTS measurements under high field on pin devices.

**Expected original contributions**:
Obtaining p-doping in Ga2O3 will be a major step forward for the development of this sector. The characterization of this material will be a key element in obtaining it.

All these advances are essential building blocks for the development of a high power electronics industry based on Ga2O3 bipolar devices.

**Prise de fonction**:

- 01/10/2024**Nature du financement**:

- Contrat doctoral**Précisions sur le financement**:
**Présentation établissement et labo d'accueil**:

- (INSA) Institut National des Sciences Appliquees de LyonThe** **INL is a 250-strong research institute based in Lyon, France, carrying out fundamental and applied research in electronics, semiconductor materials, photonics and biotechnologies. Within the INL laboratory, the "Functional Materials" team has extensive and unique expertise in electrical and electro-optical techniques for studying the electronic levels induced by traps and defects in large bandgap semiconductors. Professors Bremond and Bluet who have a more than 20 years’ experience in wide band gap semiconductor physics will supervise the study.

**Site web**:
**Intitulé du doctorat**:

- Sciences physique des matériaux**Pays d'obtention du doctorat**:

- France**Etablissement délivrant le doctorat**:

- INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON**Ecole doctorale**:

- École Doctorale Matériaux de LyonYou must have or be about to obtain an MSc in Condensed matter physics /Nanosci



  • Lyon, France RTI International Temps plein

    Overview RTI International is an independent nonprofit research institute dedicated to conducting innovative, multidisciplinary research that improves the human condition with a worldwide staff of nearly 6,000. Universities in North Carolina founded RTI in 1958 as the first scientific organization in and centerpiece of the Research Triangle Park, NC,...


  • Lyon, France Solvay Temps plein

    Solvay is a science company whose technologies bring benefits to many aspects of daily life. Our purpose—we bond people, ideas and elements to reinvent progress—is a call to go beyond, to reinvent future forms of progress and create sustainable shared value for all through the power of science. In a world facing an ever-growing population and quest for...


  • Lyon 8e, France Diagnoly Temps plein

    We are looking for a Quality and Regulatory work Engineer who is ready for the challenge of bringing to a market of an AI-powered medical device that will transform the domain of obstetric ultrasound; Someone who is ready to define our quality and regulation practice, provide vision and leadership. - Start-up activity_ DIAGNOLY is an early-stage DeepTech...


  • Lyon, France Solvay Temps plein

    Solvay is a science company whose technologies bring benefits to many aspects of daily life. Our purpose—we bond people, ideas and elements to reinvent progress—is a call to go beyond, to reinvent future forms of progress and create sustainable shared value for all through the power of science. In a world facing an ever-growing population and quest for...

  • Clinical Project Manager

    Il y a 2 mois


    Lyon, France Talents Solutions Temps plein

    The company: Join a French company, specializing in the design and manufacture of orthopedic Medical Devices for extremity surgery. The company's mission is to provide simple and innovative solutions to simplify surgical procedures and operating room material management, and to ensure the effectiveness of surgical teams. They offer healthcare professionals...


  • Lyon, France Talents Solutions Temps plein

    The Company: The company is an innovative French company of 30 people specializing in the design and manufacture of orthopedic Medical Devices for extremity surgery. The expectations regarding practitioners' performance are constantly increasing, regulatory requirements are rising, and the optimization of technical platforms is a necessity. In this...

  • Ingénieur Inspection H/F

    il y a 19 heures


    LYON, France Exens Ingénierie Temps plein

    In the context of an ISIR mission, we are looking for an engineer to collaborate to the Lead Fast Reactor (LFR) design activities and experimental facilities, focusing-on the design, development and qualification of in-service inspection devices and systems with particular reference, but not limited to, operation in molten lead or extreme environmental...


  • Lyon, France Nemera Temps plein

    Nemera is one of the leading global manufacturers of complex drug delivery systems for the pharmaceutical industry, offering to patients a broad product portfolio which includes inhalation devices, injection devices, nasal and dermal pumps and ophthalmic delivery devices. Nemera has built very long lasting, strong relationships with the leading global...

  • Pathologist

    il y a 4 semaines


    Lyon, France American Preclinical Services Temps plein

    NAMSA pioneered the industry and was the first independent company in the world to focus solely on medical device materials for safety. NAMSA started testing medical devices before the U.S. Food and Drug Administration started regulating such products in 1976. We are shaping the industry. NAMSA has been a key contributor to the development of the test...


  • Lyon, France RTI International Temps plein

    Overview RTI Health Solutions (RTI-HS), a business unit of RTI International, is an independent and internationally recognized research organisation. We provide healthcare consulting and research expertise to optimise decision-making for pharmaceutical, biotechnology, and medical device products across the development and marketing life cycle. Clients rely...


  • Lyon, France Solvay Temps plein

    Solvay is a science company whose technologies bring benefits to many aspects of daily life. Our purpose—we bond people, ideas and elements to reinvent progress—is a call to go beyond, to reinvent future forms of progress and create sustainable shared value for all through the power of science. In a world facing an ever-growing population and quest for...


  • Lyon, France Faurecia Temps plein

    **FINANCE & STRATEGY INTERN** The goals of the new Sustainable Materials Division also called MATERI’ACT created at the end of 2021 are to provide sustainable materials amongst all Forvia Business Group and to be one of the major contributors to Forvia CO2 Reduction Roadmap accordingly to Paris agreement. MATERI’ACT is in amazing development and should...


  • Lyon, France Össur Temps plein

    _The most important resource of Össur is its staff. At Össur, we value our extensive skills and knowledge base and naturally we nurture a spirit of innovation. With wide-ranging roles involved in our business, Össur is keen to attract talented individuals and accomplished team players, who are ready to contribute to the achievement of our goals._ -...


  • Lyon 8e, France Handicap International Temps plein

    12 months ASAP, Lyon Humanity & Inclusion (HI) is an independent and impartial aid organisation working in situations of poverty and exclusion, conflict and disaster. The organisation works alongside people with disabilities and vulnerable populations, taking action and bearing witness in order to respond to their essential needs, improve their living...


  • Lyon, France INL - INSA Lyon Temps plein

    **Nouvelles architectures de photodiodes à avalanche à photon unique (SPAD) compatibles silicium pour le proche infrarouge**: - Réf - **ABG-111901** - Sujet de Thèse- 09/03/2023- Contrat doctoral- INL - INSA Lyon- Lieu de travail- Lyon - Auvergne-Rhône-Alpes - France- Intitulé du sujet- Nouvelles architectures de photodiodes à avalanche à photon...


  • Lyon, France Ecole Centrale de Lyon Temps plein

    **PUF design using emerging ferroelectric technologies**: - Réf - **ABG-111837** - Sujet de Thèse- 08/03/2023- Contrat doctoral- Ecole Centrale de Lyon- Lieu de travail- Ecully - Auvergne-Rhône-Alpes - France- Intitulé du sujet- PUF design using emerging ferroelectric technologies- Champs scientifiques- Electronique - Mots clés- Physical unclonable...

  • Cqv Specialist

    il y a 1 mois


    Lyon, France PHARMENG TECHNOLOGY Temps plein

    PharmEng Technology is a global ISO certified Pharmaceutical Compliance Consulting Firm with projects around the world providing quality services to the manufacturers of pharmaceutical and health care products for over 25 years. Our 300+ global consultants have expertise in Commissioning & Qualification, Validation, Quality Systems, Engineering, Medical...


  • Lyon, France Nemera Temps plein

    We are currently seeking a** Regulatory and Compliance Project Manager **with combination products experience to join our growing team and independently lead an end-to-end submission process. The role will require hands-on experience in Technical Files, IND, NDA, and BLA submissions specific to the US and EU markets. Reporting to the Regulatory and...


  • Lyon, France Volvo Group Temps plein

    Transport is at the core of modern society. Imagine using your expertise to shape sustainable transport solutions for the future? If you seek to make a difference on a global scale, working with next-gen technologies and the sharpest collaborative teams, then we could be a perfect match. The future is here. At Volvo Group, we are taking the knowledge from...


  • Lyon, France Bayer Temps plein

    **At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our...