Commissariat a L'energie Atomique Et Aux Energies Alternatives

Commissariat a L'energie Atomique

Safran

Jacky Bancillon

Jean-Paul Garandet

Amar Saboundji

Virginie Jaquet

Mirna Bechelany

Richard Laucournet

Luc Federzoni

Mathieu Soulier

Marc Pirot

Jean-Charles Barbé

Michel Daniel

Stephane Bredeau

Alexandre Montani

A device for stamping and/or drilling a substrate, including two dies supported by two support assemblies configured to be moved relative to each other in translation. The assembly includes: a base; an orientable head fixed to the die; a connection mechanism between the base and the head to adjust orientation of the head relative to the base; pressure sensors configured to continuously output information about pressure applied at different points of the die; and a mechanism controlling a connection, to continuously control the orientation of the head relative to the base, in response to information output by the sensors.

Stamping and/or drilling device comprising a substrate support head with continuously controlled orientation

A solution for texturing silicon wafers configured to constitute photovoltaic (PV) cells. Silicon wafers can be produced, the surface of which include uniformly engraved patterns having a depth of between 5 and 50 &#x3bc;m.

Device and method for mechanically texturing a silicon wafer intended to comprise a photovoltaic cell, and resulting silicon wafer

The process for measuring viscosity relies on the observation of the relaxation of a sample drop (A) initially flattened between two plates (), normally without any contact with them due to a gas layer blown through their opposite faces (); one correlates the observed phenomenon with a relaxation model fitting each portion of the measurement curve so as to estimate concurrently the viscosity and the shear rate, then the sensitiveness of the viscosity to the shear rate by compiling the said portions. The proposed viscometer includes a variable magnetic field generator () to produce, using a removable screen (), various stirring and shears in the sample (A).

Relaxation-type viscosimeter having a magnetic field generator and method therefor

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Saint-Egreve, France

Jacky Bancillon