摘要:
A method for aligning an extraction electrode to an arc chamber of an ion implantation apparatus can be carried out by first providing a calibration tool that is shaped essentially of a flat key that has sections of different widths. The extraction electrode can then be tilted by switching on a tilt motor, while being moved horizontally by switching on an alignment motor until the calibration tool can be smoothly inserted into the slit openings in the arc chamber and in the extraction electrode. The tilt motor and the alignment motor are controlled by a tilt/align controller. When such insertion is not possible, the extraction electrode can be continuously tilted and moved horizontally until such smooth insertion is possible. The present invention further discloses a calibration tool that can be used easily for aligning an extraction electrode to an arc chamber of an ion implantation apparatus.
摘要:
An ion implanter is provided having an ion source; an AMU analyzing magnet having a fixed radius Ram; an ion extraction voltage source; a communication interface for monitoring implantation parameters; and an equipment server having a data log. The ion implanter further has an arithmetic processor capable of determining a real-time estimated radius Re of a circular path of ions being implanted into a target wafer. A method of using the ion implanter provide an interlock on an AMU of each of a plurality of ions being implanted into the target wafer. The method has the step of determining in real-time if an ion implanter is implanting a desired ion into a target wafer. Also, the method determines if an absolute value of an offset between the Ram and Re exceeds a predetermined radius tolerance level L and adjusts the implanter accordingly if L is exceeded.
摘要:
An ion implanter is provided having an ion source; an AMU analyzing magnet having a fixed radius Ram; an ion extraction voltage source; a communication interface for monitoring implantation parameters; and an equipment server having a data log. The ion implanter further has an arithmetic processor capable of determining a real-time estimated radius Re of a circular path of ions being implanted into a target wafer. A method of using the ion implanter provide an interlock on an AMU of each of a plurality of ions being implanted into the target wafer. The method has the step of determining in real-time if an ion implanter is implanting a desired ion into a target wafer. Also, the method determines if an absolute value of an offset between the Ram and Re exceeds a predetermined radius tolerance level L and adjusts the implanter accordingly if L is exceeded.