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Power Electronics Reliability Intern

Reference   (Please mention Stopdodo/Environment Jobs in your application)
Sectors Sustainability, Climate, CSR, EMS
Location Colorado - America North
Type Temporary / Contract / Seasonal
Status Full Time
Level Voluntary & Interns
Deadline 11/12/2011
Company Name NREL
Contact Name
Website Further Details / Applications
NREL logo
Directory Entry : The National Renewable Energy Laboratory - NREL - is the only federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency technologies.
Also Listing:
IMPORTANT:  This Advertiser has requested that applicants MUST be National Residents / Valid Work Permit-holders.  Other applicants need not apply.


Power Electronics Reliability Intern
Golden, CO
Student RPP
The National Renewable Energy Laboratory (NREL), Center for Transportation Technology and Systems in Golden, CO has an opening for a student internship. The position is part-time (20 hours per week) during the school year and full time (40 hours per week) during the summer. Inverters in hybrid and electric vehicles consist of insulated-gate-bipolar transistor (IGBT) packages which condition power between the electrical motor and the battery. These IGBT packages consist of multiple layers of different materials that serve different roles, such as - electrical conduction, physical support, electrical isolation, and heat dissipation. In a number of package configurations, the different layers are held together by bonded interface materials (BIMs). The IGBT package is often subject to thermally induced stresses which can cause failures within the package layers as well as the BIM. It is therefore important to characterize and improve the thermal performance and reliability of these BIMs. Therefore, research on the fundamental physical properties of these materials is needed. This intern will assist with both experimental and numerical investigation on novel BIMs for improving power electronics reliability.
The student will assist in developing a joint-scale shear testing apparatus and perform a mechanical analysis of various solder and sintered materials. Specimens will be tested at different strain rates and temperatures, and results will be used to define physical properties for finite-element analysis (FEA) models. The student will perform FEA modeling on power electronic packages subjected to temperature cycling to aid in the reliability estimation of the bonded interfaces.
Must be enrolled as a full-time student.

Graduate students enrolled in a minimum of nine credit hours.

Undergraduate students enrolled in a minimum of twelve credit hours.

Minimum of a 3.0 cumulative grade point average.

Must be a United States citizen or permanent resident.
A strong background in mechanics of materials is required. Experience with laboratory work is necessary. Experience with computer programming and application of computer models is also essential. This includes skills in MatLab, ANSYS, and Excel. The ability to process and analyze experimental data as well as the modeling results is also required. Strong communication skills including interpersonal, presentations, and writing skills is required. The ability to work both independently and within a team is needed.
Graduate student in Mechanical or Electrical Engineering or related discipline is preferred. Experience using ANSYS, SolidWorks and MatLab is considered a strength. A background in power electronics is also desirable.
NREL is dedicated to the principles of equal employment opportunity. NREL promotes a work environment that does not discriminate against workers or job applicants and prohibits unlawful discrimination on the basis of race, color, religion, sex, national origin, disability, age, marital status, ancestry, actual or perceived sexual orientation, or veteran status, including special disabled veterans.

NREL validates right to work using E-Verify. NREL will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS), with information from each new employee’s Form I-9 to confirm work authorization. For additional information, please see www.nrel.gov/employment/eeo.html.
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