Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for uniformly implanting ions into a wafer by changing a relative motion and a geometrical relationship between the wafer and an ion beam. SOLUTION: First of all, a belt-like ion beam having a length of a first axis and a width of a second axis is formed on a wafer. The length of the ion beam is longer than the diameter of the wafer and the width is narrower than the diameter of the wafer. The center of the wafer is moved at a certain moving speed along the scanning route which the ion beam passes over, and at the same time, the wafer is rotated at a certain rotational speed. While the wafer is moved while being rotated, when the wafer passes over the ion beam, the wafer is completely covered by the ion beam along the first axis and the maximum rotational speed is several times of the moving speed. The moving speed and the rotational speed are constants or are functions of the location of the wafer with respect to the ion beam. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new system structure for high-current ion beam generation improved in the uniformity of ion beams without requiring additional structuring elements, even if manufacturing cost is reduced and manufacturing processes are simplified. SOLUTION: This ion implanting device is provided with multiple operating modes. The device has an ion source and an extraction means for extracting a ribbon-shaped ion beam therefrom. The ion implanting device includes a magnetic analyzer for selecting ions with specific mass-to-charge ratios to pass through a mass slit to be projected to a substrate. A multipole lens is provided to control beam uniformity and collimation. This ion implating method is provided with a two-path beamline in which a second path incorporates a deceleration system incorporating energy filtering. The method can change over ion implantation modes from the one-dimensional scanning to two-dimensional scanning of a target, and from a a simple path to an S-shaped path with deceleration. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To decrease the set-up time of an ion beam, in high-energy ion injection processing having an ion source, an extraction assembly, and an electrode assembly.SOLUTION: An ion beam 106 having first energy may be generated by using an ion source and an extraction assembly. First voltage may be applied between electrode assemblies 112. The ion beam may enter the electrode assemblies with the first energy, go out from the electrode assemblies with second energy, and inject the ion in a target with the second energy. Second voltage may be applied between the electrode assemblies. The ion beam may enter the electrode assemblies with the first energy, go out from the electrode assemblies with third energy, and inject an ion in a target with the third energy. The third energy may differ from the second energy.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of forming a high-concentration source drain that can be highly integrated in a fin FET.SOLUTION: A fin is formed having a source region, a drain region, and a channel region between the source and drain regions. A gate stack is formed having an insulating layer in direct contact with the channel region and a conductive gate material in direct contact with the insulating layer. The source and drain regions are etched and removed while leaving the channel region. A source epitaxy region and a drain epitaxy region are formed on both sides of the channel region that are adjacent to the source and drain regions. The source and drain epitaxy regions are doped in-situ while growing an epitaxial semiconductor.
Abstract:
PROBLEM TO BE SOLVED: To dope a non-planar semiconductor device such as FinFET.SOLUTION: In doping a non-planar semiconductor device, a substrate having a non-planar semiconductor body formed thereon is obtained. A first ion implant is performed in a region of the non-planar semiconductor body. The first ion implant has a first implant energy and a first implant angle. A second ion implant is performed in the same region of the non-planar semiconductor body. The second ion implant has a second implant energy and a second implant angle. The first implant energy may be different from the second implant energy. Additionally, the first implant angle may be different from the second implant angle.
Abstract:
PROBLEM TO BE SOLVED: To provide a new system structure for high-current ion beam generation improved in the uniformity of ion beams without requiring additional structuring elements, even if manufacturing cost is reduced and manufacturing processes are simplified. SOLUTION: This ion implanting device is provided with multiple operating modes. The device has an ion source and an extraction means for extracting a ribbon-shaped ion beam therefrom. The ion implanting device includes a magnetic analyzer for selecting ions with specific mass-to-charge ratios to pass through a mass slit to be projected to a substrate. A multipole lens is provided to control beam uniformity and collimation. This ion implating method is provided with a two-path beamline in which a second path incorporates a deceleration system incorporating energy filtering. The method can change over ion implantation modes from the one-dimensional scanning to two-dimensional scanning of a target, and from a a simple path to an S-shaped path with deceleration. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of performing plasma doping to a nonplanar semiconductor device.SOLUTION: When plasma doping a nonplanar semiconductor device, a substrate 104 in which a nonplanar semiconductor body is formed is obtained. The substrate having a nonplanar semiconductor body is arranged in a chamber 102. Plasma 120 is formed in the chamber, and contains dopant ions. In order to inject dopant ions into the region of a nonplanar semiconductor body, a first bias voltage is generated. In order to inject dopant ions into the same region, a second bias voltage is formed. In some example, the first bias voltage is different from the second bias voltage.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a finFET by which a manufacturing cost can be reduced and a processing time period can be shortened.SOLUTION: A finFET is formed to have a fin with a source region, a drain region, and a channel region between the source and drain regions. The fin is etched on a semiconductor wafer. A gate stack is formed to have an insulating layer in direct contact with the channel region and a conductive gate material in direct contact with the insulating layer. The source and drain regions are etched for exposing a first region of the fin. Then, a part of the first region is doped by a dopant.
Abstract:
PROBLEM TO BE SOLVED: To provide a high resolution magnetic analyzer for an ion implantation device capable of bending ribbon ion beams with a high aspect ratio with an angle between about 45 degrees or larger and about 110 degrees or lower, capable of setting a focus through an analyzing slit for mass analysis. SOLUTION: The high resolution magnetic analyzer has an arch-shaped yoke 110 and an array formed by positioning loop-shaped coils 120, 121 in mirror plane symmetry. Respective loop-shaped coils are extended at an inlet and an outlet of the arch-shaped yoke, and formed into a curved shape known as a side coil at respective rounded end parts. By the above structure, magnetic field leakage is reduced, and a convergence with high quality is realized because a uniform magnetic field is generated in the magnetic field area, and consequently, high resolution, high aspect ratio, and light weight are realized. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid scan type ion implantation device processing a single wafer, capable of uniformly injecting and having a simple structure, excellent durability and reliability. SOLUTION: A wafer is mounted on a wafer holder 120 attached to an end of an arm 110 connected with a first pivot 150 and bent midway by a second pivot 140. The wafer is tilted by an arbitrary angle with the second pivot and mechanically scanned in a circular arc shape by the first pivot. A ribbon beam 20 whose current density is proportional to the distance from the first pivot is formed with a collimator to irradiate the wafer to achieve uniform injection. COPYRIGHT: (C)2007,JPO&INPIT