Method of fabricating polycrystalline silicon plates

A method of fabricating at least one polycrystalline silicon plate with one of its two faces presenting predetermined relief, said method comprising the steps of:

• embossing a face of a carbon tape support by pinching said carbon tape support between two rollers and running said carbon tape support between them to impart thereto a surface relief complimentary to said predetermined relief of said at least one polycrystalline silicon plate;
• depositing a polycrystalline silicon layer on said surface relief on said face of the carbon tape support, with at least one surface of said polycrystalline silicon layer against said surface relief of said face of said carbon tape support, with said surface of said polycrystalline silicon layer having substantially the same shape as the shape of said surface relief
• cutting up said polycrystalline silicon layer;
• and
• eliminating said support in order to obtain said polycrystalline silicon plate.