Abstract: The present invention relates to new methods for manufacturing photovoltaic devices and an apparatus for practicing those methods of manufacture. The present invention employs a transfer-through system for advancing work piece substrates through an integrated apparatus of multiple treatment chambers that control each of the manufacturing processes.
Abstract: Methods and apparatus for controlling and delivering a vaporous element or compound, for example, selenium or sulfur, from a solid source to a work piece are provided. The methods and apparatus may be used in photovoltaic cell manufacturing. The apparatus may comprise a treatment chamber, for example, a box furnace or a tube furnace. The chamber may include an inner enclosure, an outer enclosure, and heating sources capable of independent thermal control, for example, in compliance with a predetermined heating schedule. The apparatus include devices and mechanisms for isolating the treatment chambers from the ambient environment. The methods and apparatus may be adapted to control metalloid vapor delivery in photovoltaic cell processing, for example, the processing of CIGS and CIGSS photovoltaic cells.
Type:
Grant
Filed:
November 18, 2005
Date of Patent:
October 28, 2008
Assignee:
DayStar Technologies, Inc.
Inventors:
Robert F. Zwaap, Troy Berens, John R. Tuttle
Abstract: The present invention relates generally to the field of photovoltaics and more specifically to manufacturing thin-film solar cells using a thermal process. Specifically, a method is disclosed to manufacture a CIGS solar cell by an in-situ junction formation process.
Abstract: Methods and apparatus for controlling and delivering a vaporous element or compound, for example, selenium or sulfur, from a solid source to a work piece are provided. The methods and apparatus may be used in photovoltaic cell manufacturing. The apparatus may comprise a treatment chamber, for example, a box furnace or a tube furnace. The chamber may include an inner enclosure, an outer enclosure, and heating sources capable of independent thermal control, for example, in compliance with a predetermined heating schedule. The apparatus include devices and mechanisms for isolating the treatment chambers from the ambient environment. The methods and apparatus may be adapted to control metalloid vapor delivery in photovoltaic cell processing, for example, the processing of CIGS and CIGSS photovoltaic cells.