摘要:
A method of plasma doping includes providing a dopant gas comprising a dopant heavy halogenide compound gas to a plasma chamber. A plasma is formed in the plasma chamber with the dopant heavy halogenide compound gas and generates desired dopant ions and heavy fragments of precursor dopant molecule. A substrate in the plasma chamber is biased so that the desired dopant ions impact the substrate with a desired ion energy, thereby implanting the desired dopant ions and the heavy fragments of precursor dopant molecule into the substrate, wherein at least one of the ion energy and composition of the dopant heavy halogenide compound is chosen so that the implant profile in the substrate is substantially determined by the desired dopant ions.
摘要:
A method of plasma doping includes providing a dopant gas comprising a dopant heavy halogenide compound gas to a plasma chamber. A plasma is formed in the plasma chamber with the dopant heavy halogenide compound gas and generates desired dopant ions and heavy fragments of precursor dopant molecule. A substrate in the plasma chamber is biased so that the desired dopant ions impact the substrate with a desired ion energy, thereby implanting the desired dopant ions and the heavy fragments of precursor dopant molecule into the substrate, wherein at least one of the ion energy and composition of the dopant heavy halogenide compound is chosen so that the implant profile in the substrate is substantially determined by the desired dopant ions.
摘要:
An approach that determines an ion implantation processing characteristic in a plasma ion implantation of a substrate is described. In one embodiment, there is a light source configured to direct radiation onto the substrate. A detector is configured to measure radiation reflected from the substrate. A processor is configured to correlate the measured radiation reflected from the substrate to an ion implantation processing characteristic.
摘要:
A method of selecting plasma doping process parameters includes determining a recipe parameter database for achieving at least one plasma doping condition. The initial recipe parameters are determined from the recipe parameter database. In-situ measurements of at least one plasma doping condition are performed. The in-situ measurements of the at least one plasma doping condition are correlated to at least one plasma doping result. At least one recipe parameter is changed in response to the correlation so as to improve at least one plasma doping process performance metric.
摘要:
A method for activating a first ionic species implanted in a semiconductor, including annealing the semiconductor using a controlled diffusion annealing, and controlling the oxygen content during the annealing to redistribute the first ionic species such that the abruptness of the implanted profile is increased after the annealing. Also, a method is provided for forming a junction in a semiconductor, including implanting a first ionic species in the semiconductor, post-implanting at least one second ionic species where the at least one second ionic species includes at least one of an atomic weight and a molecular weight that is substantially the same or greater than at least one of the first ionic species' atomic weight and molecular weight, and, annealing the semiconductor using a controlled diffusion annealing, where the abruptness of the profile is decreased after annealing such that the junction dimensions are minimized with respect to the junction dimensions of the as-implanted profile of the first ionic species.