| Nombre | apoyo | Revisión | Disponibilidad | Fecha de emisión | Precio | ||
|---|---|---|---|---|---|---|---|
|
PDF sécurisé |
Inglés |
Vigente |
1/10/2012 |
204,00 € |
|
||
Detalles
Silicon is one of the key materials in the growing photovoltaic (PV) industry. Solar cells made of silicon will be manufactured for many years to come. New parties supplying or purchasing Si feedstock materials are entering this industry.
The need for higher volumes and more cost efficient feedstock Si triggered development of metallurgical refining methods. In addition new methods modifying the original Siemens process were investigated and were introduced in high volume manufacturing. In parallel to the development of refining methods a wide variety of crystallization techniques and solar cell designs, each requiring specific material properties, were investigated by industry and research organizations. A multidimensional parameter space would be necessary to describe all the relations between feedstock material quality, single and multicrystalline ingots and finally solar cell performance. These would result in a multitude of interface problems, inhibiting the relations between suppliers and their customers, that is not appropriate for a high volume and fast growing industry.
Standardized specifications for Si feedstock materials are expected to reduce these interface problems and to enable a common understanding of material properties and terms, allowing reliable manufacturing of ingots of solar cells and benefiting all parties.
This Specification covers virgin silicon feedstock materials produced by CVD processes, metallurgical refining processes or other processes. CVD processes include the so-called Siemens process, fluidized bed processes, powder processes and other processes using distilled silane or halosilane compounds.
These specified materials are intended for growing of single crystalline ingots and casting or other methods of growing multicrystalline Si, used for producing Si wafers for solar cells.
This Specification is not intended for material used for manufacturing thin film solar products such as amorphous or micromorphous Si products, but it may be used if it is appropriate for the specific application.
This Specification only applies to virgin silicon feedstock and not to scrap or waste material coming from the semiconductor industry.
This Specification is also not intended for specifying material blends, although it may be used as a guideline for melts from blended materials.
Información adicional
| Autor | Semiconductor Equipment and Materials Institute (SEMI) |
|---|---|
| Publicado por | SEMI |
| Tipo de Documento | Norma |
| Fecha de confirmación | 2019-04-01 |
