CONDUCTIVE PASTE COMPOSITION AND SEMICONDUCTOR DEVICES MADE THEREWITH

• Main Authors: TORARDI, CARMINE, VERNOOY, PAUL DOUGLAS
• Format: Patent
• Language: English; French
• Published: 11.06.2015
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SEMICONDUCTOR DEVICES; USE OF MATERIALS THEREFOR; WOODSTAINS

A conductive paste composition contains a source of an electrically conductive metal, an alkaline-earth-metal boron bismuth oxide, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and alkaline-earth-metal boron bismuth oxide. La présente invention concerne une composition de pâte conductrice contenant une source d'un métal électroconducteur, un oxyde de métal alcalino-terreux-bore-bismuth, et un véhicule organique. L'invention concerne également un article, tel qu'une cellule photovoltaïque à haute performance, formée selon un procédé de dépôt de ladite composition de pâte sur un substrat semi-conducteur (par exemple par sérigraphie) et de cuisson de la pâte pour éliminer le véhicule organique et fritter le métal et l'oxyde métal alcalino-terreux-bore-bismuth.