>Postgraduate Studentships Mathematics
MATHEMATICAL INSTITUTE AND ST ANNE'S COLLEGE, UNIVERSITY OF OXFORD AND
DUPONT
POSTGRADUATE CASE STUDENTSHIP
STUDENTSHIP: EPSRC STANDARD STUDENTSHIP + £2000 per annum enhancement +
College and University fees.
Applications are invited for a postgraduate studentship, funded by EPSRC and
DuPont, to work on "Mathematical Modelling of the Screen Printing Process"
with Dr Peter Howell and Dr Chris Breward (from the Oxford Centre for
Industrial and Applied Mathematics, part of the Mathematical Institute), and
Dr Richard Young (DuPont). The studentship is available for 1 October 2006
start and is subject to standard Doctoral Training Account rules for
eligibility.
Screen printing of thick film pastes has been used since the 1960s to
produce electronic circuits. The process uses the paste as a vehicle to
transport metal and/or inorganic powders onto the required circuit pattern
on the substrate by means of the screen-printing process. In this process
the screen is held under tension above the substrate and a pool of paste is
laid on top of the screen in front of the squeegee. The squeegee is
depressed and moved forward and the motion forces paste through the screen
and generates the printed pattern.
In practice, the pattern formed by the screen-printed paste is different
from the screen's pattern due to the paste rheology, surface energies,
application geometry and dynamics. For some applications, such as silicon
photovoltaic cells, the definition of the printed pattern is a critical
performance parameter. Modelling of the process with bring valuable insight
into design of future high resolution screen printing products and
processes.
This studentship will build on previous work which has assumed that the
paste is a Newtonian fluid. We will (i) formulate realistic models for the
rheology of thick film pastes, based on experiments, (ii) apply the model to
the transfer of paste through the screen, (iii) apply the model to the
release of the screen from the printed pattern and (iv) combine (ii) and
(iii) to give a complete model for the process and enable predictions of the
printing and patterning.
The studentship is attached to St Anne's College
Further particulars may be obtained from Margaret Sloper at The Mathematical
Institute, 24-29 St Giles, Oxford, OX1 3LB, email
graduate.studies@maths.ox.ac.uk. Applications should include a CV, covering
letter, the name and address of three referees and the University's
application form for graduate study which can be downloaded from
http://www.admin.ox.ac.uk/postgraduate/apply/forms/appform.pdf (note that
this requires the attachment of a transcript of your undergraduate degree)
and must arrive by lunchtime on 1 May 06. Applicants must arrange for their
referees to send references direct to the Administrative Assistant (fax or
e-mail is sufficient) by the closing date. Please quote reference BK/06/08.
Oxford University is an Equal Opportunity Employer.
DUPONT
POSTGRADUATE CASE STUDENTSHIP
STUDENTSHIP: EPSRC STANDARD STUDENTSHIP + £2000 per annum enhancement +
College and University fees.
Applications are invited for a postgraduate studentship, funded by EPSRC and
DuPont, to work on "Mathematical Modelling of the Screen Printing Process"
with Dr Peter Howell and Dr Chris Breward (from the Oxford Centre for
Industrial and Applied Mathematics, part of the Mathematical Institute), and
Dr Richard Young (DuPont). The studentship is available for 1 October 2006
start and is subject to standard Doctoral Training Account rules for
eligibility.
Screen printing of thick film pastes has been used since the 1960s to
produce electronic circuits. The process uses the paste as a vehicle to
transport metal and/or inorganic powders onto the required circuit pattern
on the substrate by means of the screen-printing process. In this process
the screen is held under tension above the substrate and a pool of paste is
laid on top of the screen in front of the squeegee. The squeegee is
depressed and moved forward and the motion forces paste through the screen
and generates the printed pattern.
In practice, the pattern formed by the screen-printed paste is different
from the screen's pattern due to the paste rheology, surface energies,
application geometry and dynamics. For some applications, such as silicon
photovoltaic cells, the definition of the printed pattern is a critical
performance parameter. Modelling of the process with bring valuable insight
into design of future high resolution screen printing products and
processes.
This studentship will build on previous work which has assumed that the
paste is a Newtonian fluid. We will (i) formulate realistic models for the
rheology of thick film pastes, based on experiments, (ii) apply the model to
the transfer of paste through the screen, (iii) apply the model to the
release of the screen from the printed pattern and (iv) combine (ii) and
(iii) to give a complete model for the process and enable predictions of the
printing and patterning.
The studentship is attached to St Anne's College
Further particulars may be obtained from Margaret Sloper at The Mathematical
Institute, 24-29 St Giles, Oxford, OX1 3LB, email
graduate.studies@maths.ox.ac.uk. Applications should include a CV, covering
letter, the name and address of three referees and the University's
application form for graduate study which can be downloaded from
http://www.admin.ox.ac.uk/postgraduate/apply/forms/appform.pdf (note that
this requires the attachment of a transcript of your undergraduate degree)
and must arrive by lunchtime on 1 May 06. Applicants must arrange for their
referees to send references direct to the Administrative Assistant (fax or
e-mail is sufficient) by the closing date. Please quote reference BK/06/08.
Oxford University is an Equal Opportunity Employer.
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