Method and system for producing crystalline thin films with a uniform crystalline orientation

摘要

System and method generating a polycrystalline thin film with a particular crystalline orientation for use as thin film transistors, microelectronic devices and the like. In one exemplary embodiment, a polycrystalline silicon thin film that has a substantially uniform crystalline orientation is produced so that its crystals are provided in at least one direction. The crystalline orientation may be any low index orientation and may be achieved with sequential lateral solidification. The polycrystalline thin film may then be crystallized in a direction that is perpendicular to the first direction by, e.g., a sequential lateral solidification procedure so that the crystalline orientation is approximately the same as the first direction, and is substantially uniform in all directions.