Beam monitoring device, method, and system

A beam monitoring device, method, and system is disclosed. An exemplary beam monitoring device includes a one dimensional (1D) profiler. The 1D profiler includes a Faraday having an insulation material and a conductive material. The beam monitoring device further includes a two dimensional (2D) profiler. The 2D profiler includes a plurality of Faraday having an insulation material and a conductive material. The beam monitoring device further includes a control arm. The control arm is operable to facilitate movement of the beam monitoring device in a longitudinal direction and to facilitate rotation of the beam monitoring device about an axis.

BACKGROUND

For example, as the semiconductor industry has progressed into nanometer technology process nodes in pursuit of higher device density, higher performance, and lower costs, challenges from both fabrication and design have resulted in the development of devices having doped regions. An ion implantation process is well suited for doping. Ion implantation adds dopant atoms in a material using energetic ion beam injection. It is important to achieve uniform implantation. If the implantation is not uniform, the dopant profile and ultimately the electronic device may be adversely affected. One reason why implantation may not be uniform is because the angle of incidence if the ion beam varies. For example, the incidence angle of an ion beam may vary because of beam blow-up. Beam blow-up occurs because as the ion beam travels from the source chamber the positive ions within the ion beam to mutually repel each other. Such mutual repulsion causes a beam of otherwise desired shape to diverge away from an intended beamline path. Consequently, it is desirable to monitor the incidence angle of the ion beam in an ion implanter so that control of the ion implantation process may be improved. Although existing devices and methods of monitoring ion beam incidence angle have been generally adequate for their intended purposes, they have not been entirely satisfactory in all respects.

DETAILED DESCRIPTION

Examples of systems that can benefit from one or more embodiments of the present invention are systems that monitor a beam source. Such a system, for example, is a system that monitors an ion beam source. The ion beam source, for example, may be used in a manufacturing process to implant ions in semiconductor devices. The following disclosure will continue with an example of a device that monitors an ion beam, to illustrate various embodiments of the present invention. It is understood, however, that the claimed invention should not be limited to a particular type of device, except as specifically claimed.

FIGS. 1-15have been simplified for the sake of clarity to better understand the inventive concepts of the present disclosure.FIG. 1is a diagrammatic front view of one embodiment of a beam monitoring device100, according to various aspects of the present disclosure. Additional features can be added to the beam monitoring device100, and some of the features described below can be replaced or eliminated in other embodiments of the beam monitoring device100.

With reference toFIG. 1, in the present embodiment the beam monitoring device100includes a one dimensional (1D) profiler110, a two dimensional (2D) profiler112, and a control arm114. As will be further discussed below, the 1D profiler110has two functions. First, the 1D profiler110scans a 1D cross sectional profile of the ion beam as the control arm114moves the 1D profiler in the X direction across an ion beam. Second, the 1D profiler110monitors the incidence angle of the ion beam in the X direction as the control arm114moves the 1D profiler in the X direction across the ion beam. In the present embodiment, the X direction is along the length of the ion beam. In alternative embodiments, the X direction is along the width of the ion beam.

Still referring toFIG. 1, the 1D profiler110includes a Faraday116. The Faraday116has an entrance aperture which allows an ion beam to pass through. The flux of the ion beam is sampled and a current is generated by the Faraday116. The 1D profiler110has a dimension in the X direction of w1and a dimension in the Y direction of w2. The Faraday116has a dimension in the X direction of w3and a dimension in the Y direction of w4. In the present embodiment, the 1D profiler110has a dimension w1of about 5 millimeters (mm) and a dimension w2of about 86 mm. The Faraday116has a dimension w3of about 3 mm and a dimension w4of about 80 mm. It is understood that the present embodiment is not limiting and that the 1D profiler110and the Faraday116may be designed to have different measurements. For example, the 1D profiler may be designed such that the Faraday116has a dimension w4that allows a complete perpendicular cross-sectional area of the beam (i.e., perpendicular to the length of the beam) to pass through and thereby measure the angle of incidence across the perpendicular cross-sectional area in one monitoring pass. It is also understood that, depending on design requirements, the 1D profiler110may include a plurality of Faraday116.

With further reference toFIG. 1, the beam monitoring device100includes a 2D profiler112. As will be discussed in more detail below, the 2D profiler112has three functions. First, the 2D profiler112monitors the width of the ion beam. Second, the 2D profiler scans a 2D cross sectional profile of the ion beam as the control arm114moves the 2D profiler112in the Y direction across the ion beam. And, third, the 2D profiler monitors the incidence angle of the ion beam in the Y direction as the control arm114rotates about its axis118. In the present embodiment, the Y direction is along the width of the ion beam. In alternative embodiments, the Y direction is along the length of the ion beam.

The 2D profiler112includes a plurality of Faraday120. The Faraday120of the 2D profiler112are arranged in a grid pattern. The grid pattern may be substantially symmetrical in nature. The grid pattern may be formed by having the Faraday120aligned such that the 2D profiler112looks like it has streets running in the north and south direction intersecting at approximately ninety (90) degrees. Alternatively, the grid pattern may be formed by having the Faraday120offset one to another in one direction and substantially aligned in the other direction. In the present embodiment, the grid pattern is formed by having the Faraday120offset one to another in the Y direction and substantially aligned in the X direction. The disclosed patterns are, of course, merely examples and are not intended to be limiting. Accordingly, the Faraday120disclosed herein may be arranged or configured in ways different from the exemplary embodiments shown herein without departing from the scope of the present disclosure.

The 2D profiler112has a dimension in the X direction of w5and a dimension in the Y direction of w6. The Faraday120has a dimension in the X direction of w7and a dimension in the Y direction of w8. In the present embodiment, the grid pattern of the 2D profiler112is formed such that the Faraday in the first adjacent column is offset by a w9dimension in the X direction and the Faraday in the second adjacent column is offset by a w10dimension in the X direction. The dimensions of the 2D profiler may be designed such that the 2D profiler substantially covers half of a beam cross-sectional area in the X direction and a whole beam cross-sectional area in the Y direction. In the present embodiment, the 2D profiler has a w5dimension of about 255 mm and a w6dimension of about 7 mm. The Faraday120has w7dimension of about 3 mm and a w8dimension of about 1 mm. The grid pattern of the 2D profiler112has a w9dimension of about 1 mm and a w10dimension of about 1 mm. In the present embodiment, the 2D profiler112has a w5dimension of 225 mm such that the 2D profiler112substantially covers at least half of a diameter of a 450 mm wafer. It is understood that the present embodiment is not limiting and that the 2D profiler112and the Faraday120may by designed to have different measurements. By way of a nonlimiting example, as wafer manufacturing technology advances, the wafer may be designed with a new diameter such that a 2D profiler with a 255 mm dimension may not be able to substantially cover at least half of the wafer's diameter. In such circumstances, it may be desirable to design the 2D profiler with a w5dimension such that it spans half of the wafer's new diameter.

With continued reference toFIG. 1, the monitoring device100includes a control arm114. The control arm114allows movement of the monitoring device100during operation. The control arm114allows the monitoring device100to move in the X and Y direction. Further, the control arm114allows the monitoring device100to bi-directionally rotate about its axis118. The control arm114may be formed to any suitable thickness and of any suitable material. For example, the control arm may be formed to a thickness and of a material such that the control arm114is able to sustain the weight of the monitoring device100without any substantial flexing.

Referring toFIG. 2, a perspective view of one embodiment of a Faraday120ofFIG. 1is illustrated, according to various aspects of the present disclosure. The Faraday120includes an insulation material122, a conductive material124, and cup structure126. The cup structure126has an opening128and a plurality of walls that extend into the conductive material124. Opposing the opening128is a bottom surface, formed in the conductive material124, that has a plane substantially parallel with a plane of the opening128. The insulation material122covers the conductive material124not exposed by the opening126such that a ion beam (not depicted) is prohibited from striking the conductive material124. The opening126allows the beam to strike the bottom surface and the plurality of walls formed in the conductive material124and thereby induce a current in the Faraday120.

Referring toFIG. 3, a diagrammatic view of one embodiment of a wafer in an implantation system is illustrated, according to various aspects of the present disclosure. The implantation system200includes a wafer210and a ion beam source220. The wafer210may include a semiconductor substrate with various devices thereon. The ion beam source220includes an ion generating unit222that generates an ion beam for implanting the wafer210. The ion beam source220may include a single ion generating unit222or a n-number of ion generating units222. During implantation, the ion beam source220is held in a fixed position while the wafer210is moved along in an orthogonal direction (indicated by the arrow212) to cause the ion beam from the ion beam generating unit222to scan over the wafer210and thereby implant the wafer210with ions. Depending on the number of ion generating units222and the desired implantation dopant level, the scanning process may be performed numerous times to repeatedly expose the wafer210to the ion beam.

FIGS. 4-6illustrate diagrammatic cross-sectional side views of one embodiment of a beam source and beam angles, according to various aspects of the present disclosure. Referring toFIG. 4, a beam source is illustrated. In the present embodiment, the beam source is an ion beam source220. The ion beam source220includes an ion generating unit222that generates an ion beam224of charged particles in the −Z direction toward a wafer (not shown). The ion beam224experiences a blow-up effect such that the ion beam224does not have the same angel of incidence as an ideal angle of incidence from an ideal beam226which does not experience a blow-up effect.

Referring toFIG. 5, the angle of incidence θBYof the ion beam224is illustrated. The beam angle of incidence θBYis the angle between the ion beam224and the ideal beam226in the Y direction. Because the ion beam224is approximately linear the ion beam angle of incidence θBYcan be measured on both sides and across the length of the ion beam224.

Referring toFIG. 6, the angle of incidence θBXof the ion beam224is illustrated. The angle of incidence θBXis the angle between the ion beam224and the ideal beam226in the X direction. Because the ion beam224is approximately linear the ion beam angle of incidence θGXcan be measured on both sides and across the width of the ion beam224.

Referring toFIG. 7A-E, illustrated is a diagrammatic cross-sectional side view of one embodiment of a Faraday120with a rotation angle θRY(rotation of the Faraday120) in the Y direction and an ion beam224with an angle of incidence θBYin the Y direction. In the illustrated embodiment, the ion beam angle of incidence θBYis 0 degrees. Faraday120has a rotation angle θRYin the Y direction of 0 degrees (A), +−22.5 degrees (B, D), and +−45 degrees (C, E). As illustrated, the ion beam224strikes the front of the Faraday120. The part of the ion beam224that strikes the insulation material122is blocked and does not induce a current in the Faraday120. The part of the ion beam224that enters the opening of the Faraday120and strikes the surface of the conductive material124induces a current in the Faraday120.

FIG. 8is a graph illustrating the current of the Faraday120ofFIG. 7A-Ewith respect to a rotation angle θRYin the Y direction, according to one embodiment of the present disclosure. As illustrated, at a rotation angle θRYof 0 degrees, the current in the Faraday120is at a maximum. On the other hand, at a rotation angle θRYof 45/−45 degrees, the current in the Faraday120is at a minimum. The rotation angle θRYof 22.5/−22.5 degrees, produces a current in the Faraday120that is between the maximum and the minimum values.

Referring toFIG. 9A-E, illustrated is a diagrammatic cross-sectional side view of one embodiment of a Faraday120with a rotation angle θRY(rotation of the Faraday120) in the Y direction and an ion beam224with an angle of incidence θBYin the Y direction. In the illustrated embodiment, the ion beam angle of incidence θBYis 22.5 degrees. Faraday120has a rotation angle θRYin the Y direction of 0 degrees, +−22.5 degrees, and +−45 degrees. As illustrated, the ion beam224strikes the front of the Faraday120. The part of the ion beam224that strikes the insulation material122is blocked and does not induce a current in the Faraday120. The part of the ion beam224that enters the opening of the Faraday120and strikes the surface of the conductive material124induces a current in the Faraday120.

FIG. 10is a graph illustrating the current of the Faraday120ofFIG. 9A-Ewith respect to a rotation angle θRYin the Y direction and a ion beam angle of incidence θBYof 22.5 degrees, according to one embodiment of the present disclosure. As illustrated, at a rotation angle θRYof 22.5 degrees and a ion beam angle of incidence θBYof 22.5 degrees, the current in the Faraday120is at a maximum. On the other hand, at a rotation angle θRYof −45 degrees and a ion beam angle of incidence θBYof 22.5 degrees, the current in the Faraday120is at a minimum (approaching 0). The rotation angle θRYof 0 and 45 degrees, produces a current in the Faraday120that is between the maximum and the minimum values.

With the above embodiment, it is possible to monitor the ion beam angle of incidence θBYin the Y direction by measuring the current of the Faraday120. For example, as an ion beam is generated, the Faraday may be rotated about an axis in the +−Y direction to a rotation angle θRYsuch that the maximum current is produced in the Faraday120. Because the maximum current of the Faraday120occurs when the ion beam has an angle of 0 with respect to the surface of the Faraday120(i.e., θRY=θBY), the ion beam angle of incidence θBYin the Y direction may be determined.

FIG. 11is a flow chart of a method300for monitoring a beam according to various aspects of the present disclosure. In the present embodiment, the method300is used to monitor an ion beam. It is understood that the method300may be advantageously applicable in monitoring other beams. The method300begins at block302where a first and a second monitoring device is provided. The first monitoring device includes a first 1D profiler and a first 2D profiler and the second monitoring device includes a second 1D profiler and a second 2D profiler. The first 1D profiler includes a first 1D Faraday and the first 2D profiler includes a first 2D Faraday. The second 1D profiler includes a second 1D Faraday and the second 2D profiler includes a second 2D Faraday. At block304a beam having a first and a second dimension is scanned. Scanning the beam includes scanning the beam in the first dimension with the first 1D Faraday and the second 1D Faraday and scanning the beam in the second dimension with the first 2D Faraday and the second 2D Faraday. The method continues with block306where an angle of the beam is scanned with the first 2D Faraday and the second 2D Faraday. Additional steps can be provided before, during, and after the method300, and some of the steps described can be replaced or eliminated for other embodiments of the method. The discussion that follows illustrates various embodiments of a system that may benefit from the method300ofFIG. 11.

FIGS. 12-15illustrate diagrammatic views of one embodiment of a beam monitoring system400that may benefit from the method300ofFIG. 11. Examples of systems that can benefit from one or more embodiments of the present invention are systems that monitor a beam source. Such a system, for example, is a system that monitors an ion beam source. The ion beam source, for example, may be used in a manufacturing process to implant ions in semiconductor devices. The following disclosure will continue with an example of a system for monitoring an ion beam to illustrate various embodiments of the present invention. It is understood, however, that the invention should not be limited to a particular type of system, except as specifically claimed.

In the present embodiment, the beam monitoring system400includes a beam monitoring device100. The beam monitoring device100ofFIGS. 12-15is similar in many respects to the beam monitoring device100ofFIGS. 1-10. Accordingly, similar features inFIGS. 1-10and12-15are identified by the same reference numerals for clarity and simplicity.FIGS. 12-15have been simplified for the sake of clarity to better understand the inventive concepts of the present disclosure. Additional features can be added to the beam monitoring device100, and some of the features described can be replaced or eliminated in other embodiments of the beam monitoring device100.

Referring toFIG. 12A-B, the beam monitoring system400includes a first and as second beam monitoring device100a,100b. The first monitoring device100aincludes a first 1D profiler110aincluding a first 1D Faraday116aand a first 2D profiler112aincluding a first 2D Faraday120a. The first 1D Faraday116ahas an entrance aperture which allows an ion beam to pass through and the first 2D Faraday120ahas a cup structure that captures an ion beam. The first 2D Faraday120aof the first 2D profiler112ais arranged in a grid pattern which may be symmetrical in nature. The second monitoring device100bincludes a second 1D profiler110bincluding a second 1D Faraday116band a second 2D profiler112bincluding a second 2D Faraday120b. The second 1D Faraday116bhas an entrance aperture which allows an ion beam to pass through and the second 2D Faraday120bhas a cup structure that captures an ion beam. The second 2D Faraday120bof the second 2D profiler112bis arranged in a grid pattern which may be symmetrical in nature.

The first monitoring device100afurther includes a first control arm component114a. In the present embodiment the first control arm component114ais coupled to the first 2D profiler112a. In other embodiments the first control arm component114ais coupled to the first 1D profiler110a. The second monitoring device100bfurther includes a second control arm component114b. In the present embodiment the second control arm component114bis coupled to the second 2D profiler112b. In other embodiments the second control arm component114bis coupled to the second 1D profiler110b. The control arm component114a,114b, allows movement of the monitoring device100a,100bduring operation. The control arm component114a,114b, allows the monitoring device100a,100b, to move in longitudinal directions. Further, the control arm component114a,114ballows the monitoring device100a,100bto bi-directionally rotate about an axis.

Still referring toFIG. 12A-B, during operation, the beam monitoring system400monitors a 1D cross sectional profile of an ion beam222. The beam monitoring system400uses the first and second control arm components114a,114bto position the first and second monitoring device100a,100bon an ion beam222. The ion beam222includes a first and a second end at opposite ends of the ion beam222lengthwise. The first monitoring device100ais positioned at the first end and the second monitoring device100bis position at the second end (opposing one another). The first monitoring device100ais moved in the X direction along the length of the ion beam222towards the center of the ion beam222such that the first 1D profiler110atraverses a first cross section of the ion beam222. Traversing of the first cross section causes the ion beam222to pass through an opening of the first 1D Faraday116athereby inducing a current in the first 1D Faraday116awhich is used determine a first 1D cross sectional profile of the ion beam222. The second monitoring device100bis also moved in the −X direction along the length of the ion beam222towards the center of the ion beam222such that the second 1D profiler110btraverses a second cross section of the ion beam222. Traversing of the second cross section causes the ion beam222to pass through an opening of the second 1D Faraday116bthereby inducing a current in the second 1D Faraday116bwhich is used to determine a second 1D cross sectional profile of the ion beam222. The first and second monitoring device100a,100bmay be moved at the same time or independently one with respect to the other. In the present embodiment, the first and second monitoring device100a,100bare moved at the same time one toward the other. In alternative embodiments, the first and second monitoring device100a,100bare moved independently. In an alternative embodiment, the first and second monitoring device100a,100bare positioned at the center of the ion beam222and thereafter are moved in the X direction along the length of the ion beam222outwardly toward the first and second end of the ion beam222.

Still referring toFIG. 12A-B, during operation, the beam monitoring system400also monitors an incidence angle of the ion beam222in the direction X along the length (seeFIGS. 4-6) of the ion beam222. The incidence angle monitoring in the X direction occurs, for example, as the ion beam222falls through the entrance aperture of the first and second Faraday116a,116bof the first and second 1D profiler110a,110b, and onto a Faraday structure410positioned underneath, thereby determining a current and an angle of incidence in the X direction along the length of the ion beam222.

Referring toFIG. 13A-B, during operation, the beam monitoring system400monitors the width412of the ion beam222and also scans a 2D cross sectional profile of the ion beam222. The width412of the ion beam222is the ion beam222dimension widthwise (in the Y direction). Monitoring the width412of the ion beam222and scanning the 2D cross sectional profile of the ion beam222, is performed, for example, by moving the first monitoring device110ain the −Y direction along the width of the ion beam222such that the first 2D profiler112atraverses the first cross section of the ion beam222. The traversing of the first cross section causes the ion beam222to pass through an opening of the first 2D Faraday120athereby inducing a current in the first 2D Faraday120a. The second monitoring device100bis also moved in the −Y direction along the width of the ion beam222such that the second 2D profiler112btraverses the second cross section of the ion beam222. The traversing of the second cross section causes the ion beam222to pass through an opening of the second 2D Faraday120bthereby inducing a current in the second 2D Faraday120b.

Monitoring the width412of the ion beam222and scanning a 2D profile of the ion beam222may include enabling all or a select number of the first and second 2D Faraday120a,120b. In the present embodiment, monitoring the width412of the ion beam222and scanning a 2D profile of the ion beam222includes only enabling a first select Faraday414aof the first 2D Faraday120aand a second select Faraday414bof the second 2D Faraday120b. The first select Faraday414acomprise a plurality of Faraday (denoted by boxes) that are formed in an end region and in a central region of the first 2D profiler112a, and the second select Faraday414bcomprise a plurality of Faraday (denoted by boxes) that are formed in an end region and in a central region of the second 2D profiler112b. In alternative embodiments, all or other select Faraday are enabled to determine the width412of the ion beam222and scan a 2D profile of the ion beam222. It may be advantageous to enable select Faraday such that the time to process the resulting data is minimized and that the energy requirement of the system is minimized. It is understood that different embodiments may have different advantages, and no particular advantage is necessarily required of any embodiment.

Referring toFIG. 14, during operation, the beam monitoring system400, monitors the incidence angle of the ion beam222in the Y direction along the width of the ion beam222(seeFIGS. 4-10). The incidence angle in the Y direction along the width of the ion beam222is monitored, for example, by rotating the first and second monitoring device100a,100b, about a first and second axis118a,118b, such that the first and second 2D profiler112a,112b, traverse an angle of the ion beam (222not shown as covered) across the first and second cross section of the ion beam222.

Referring toFIG. 15, the beam monitoring system400may include a n-number of ion beams (seeFIG. 3) and a n-number of monitoring devices100depending on manufacturing process design requirements. In the present embodiment, the n-number of monitoring devices100are substantially similar to the monitoring device100ofFIG. 1-14in terms of composition, formation and configuration.

After monitoring the ion beam according to the embodiments disclosed herein, data regarding the 1D cross section profile, the 2D cross section profile, the beam width, and the angle of incidence along the width and length of the beam may be used to calibrate the ion beam generating units to better control the implantation process during manufacturing. Further, the monitored data may further be used during the implantation process to change the angle of the wafer during implantation to better control the implantation process during manufacturing. Accordingly, the above disclosed device, method, and system provide benefits by enabling monitoring of a beam to better control various process during manufacturing. Further, the device, method, and system disclosed herein is easily implemented into current processing. It is understood that different embodiments may have different advantages, and no particular advantage is necessarily required of any embodiment.

Thus, provided is a beam monitoring device. An exemplary beam monitoring device includes a one dimensional (1D) profiler. The 1D profiler includes a Faraday having an insulation material and a conductive material. The beam monitoring device further includes a two dimensional (2D) profiler. The 2D profiler includes a plurality of Faraday having an insulation material and a conductive material. The beam monitoring device further includes a control arm. The control arm is operable to facilitate movement of the beam monitoring device in a longitudinal direction and to facilitate rotation of the beam monitoring device about an axis.

In certain embodiments, the Faraday of the 1D profiler has an entrance aperture that allows a beam to pass through. In various embodiments, each of the plurality of Faraday of the 2D profiler have an entrance aperture and a plurality of walls extending down in the conductive material to a bottom surface opposite the entrance aperture. In one embodiment, the insulation material of the Faraday of the 1D profiler covers the conductive material not exposed by the entrance aperture. In some embodiments, the insulation material of the plurality of Faraday of the 2D profiler covers the conductive material not exposed by the entrance aperture. In certain embodiments, the entrance aperture allows a beam to enter the plurality of Faraday of the 2D profiler and strike the bottom surface and the plurality of walls extending down in the conductive material and thereby induce a current. In further embodiments, the plurality of Faraday of the 2D profiler are arranged in a grid pattern such that the Faraday are offset one to another in a first direction and substantially aligned in a second direction. In an embodiment, the 2D profiler has a first dimension and a second dimension, the first and second dimension being different, wherein the 2D profiler first dimension is at least half of a beam first dimension, and wherein the 2D profiler second dimension is at least a beam second dimension, wherein the beam first and second dimensions are different. In various embodiments, the first dimension of the 2D profiler is at least half of a diameter of a wafer. In further embodiments, the control arm is coupled to the 2D profiler at an end opposite of the 1D profiler

Also provided is a method. The method includes providing a first and a second beam monitoring device. The first beam monitoring device includes a first 1D profiler and a first 2D profiler and the second beam monitoring device includes a second 1D profiler and a second 2D profiler. The first 1D profiler includes a first 1D Faraday and the first 2D profiler includes a first 2D Faraday and the second 1D profiler includes a second 1D Faraday and the second 2D profiler includes a second 2D Faraday. The method further includes scanning a beam having a first dimension and a second dimension. Scanning the beam includes scanning the beam along the first dimension with the first 1D Faraday and the second 1D Faraday and scanning the beam along the second dimension with the first 2D Faraday and the second 2D Faraday. The method further includes scanning an angle of the beam with the first 2D Faraday and the second 2D Faraday.

In certain embodiments, the method further includes providing a third and a fourth beam monitoring device. The third beam monitoring device includes a third 1D profiler and a third 2D profiler and the fourth beam monitoring device includes a fourth 1D profiler and a fourth 2D profiler. The third 1D profiler includes a third 1D Faraday and the third 2D profiler includes a third 2D Faraday and the fourth 1D profiler includes a fourth 1D Faraday and the fourth 2D profiler includes a fourth 2D Faraday. In the present embodiment, the method further includes scanning another beam having a first dimension and a second dimension. Scanning the another beam includes scanning the another beam along the first dimension with the third 1D Faraday and the fourth 1D Faraday and scanning the another beam along the second dimension with the third 2D Faraday and the fourth 2D Faraday. In the present embodiment, the method further includes scanning an angle of the another beam with the third 2D Faraday and the fourth 2D Faraday.

In some embodiments, the method further includes scanning an angle of the beam as the beam falls through an entrance aperture of the first 1D Faraday and as the beam falls through an entrance aperture of the second 1D Faraday and onto a Faraday structure positioned underneath. In various embodiments, scanning the beam along the first dimension includes moving the first and second beam monitoring device in directions opposite one to another such that the first and second beam monitoring device meet in the middle of the beam. In certain embodiments, scanning the beam in the second dimension includes only enabling a first select Faraday of the first 2D Faraday and a second select Faraday of the second 2D Faraday, wherein the first select Faraday comprise a plurality of Faraday that are formed in an end region or in a central region of the first 2D profiler, and wherein the second select Faraday comprise a plurality of Faraday that are formed in an end region or in a central region of the second 2D profiler. In one embodiment, scanning the angle of the beam includes finding an angle of incidence by determining an angle that induces a maximum current in the first 2D Faraday and the second 2D Faraday, and wherein determining the angle that induces a maximum current includes bi-directionally rotating the first and second beam monitoring device about an axis. In further embodiments, scanning the angle of the beam includes measuring a current in the first 2D Faraday as the beam enters an aperture of the first 2D Faraday and strikes a conductive material and measuring a current in the second 2D Faraday as the beam enters an aperture of the second 2D Faraday and strikes a conductive material.

Also provided is a system. The system includes a first beam monitoring device and a second beam monitoring device. The first beam monitoring device includes a first 1D profiler including a first 1D Faraday and a first 2D profiler including a first 2D Faraday and the second beam monitoring device includes a second 1D profiler including a second 1D Faraday and a second 2D profiler including a second 2D Faraday. The system further includes a first control arm component coupled to the first beam monitoring device and a second control arm component coupled to the second beam monitoring device. The first control arm component is configured to: move the first beam monitoring device along the length of a beam such that the first 1D profiler traverses a first cross section of the beam, wherein traversing of the first cross section causes the beam to pass through an opening of the first 1D Faraday thereby inducing a current in the first 1D Faraday; move the first beam monitoring device along the width of the beam such that the first 2D profiler traverses the first cross section of the beam, wherein the traversing of the first cross section causes the beam to pass through an opening of the first 2D Faraday thereby inducing a current in the first 2D Faraday; and rotate the first beam monitoring device about a first axis such that the first 2D profiler traverses an angle of the beam across the first cross section of the beam. The second control arm component is configured to: move the second beam monitoring device along the length of the beam such that the second 1D profiler traverses a second cross section of the beam, wherein traversing of the second cross section causes the beam to pass through an opening of the second 1D Faraday thereby inducing a current in the second 1D Faraday; move the second beam monitoring device along the width of the beam such that the second 2D profiler traverses the second cross section of the beam, wherein the traversing of the second cross section causes the beam to pass through an opening of the second 2D Faraday thereby inducing a current in the second 2D Faraday; and rotate the second beam monitoring device about a second axis such that the second 2D profiler monitors an angle of the beam across the second cross section of the beam.

In some embodiments, the first control arm component is coupled to the first 2D profiler and the second control arm component is coupled to the second 2D profiler. In certain embodiments, moving the first and second beam monitoring device along the length of the beam includes moving the first and second beam monitoring device in a direction opposite one to another such that the first 1D profiler and the second 1D profiler meet in a central region of the beam.

The above disclosure provides many different embodiments, or examples, for implementing different features of the invention. Specific examples of components and arrangements are described above to simplify the present disclosure. These are, of course, merely examples and are not intended to be limiting. Accordingly, the components disclosed herein may be arranged, combined, or configured in ways different from the exemplary embodiments shown herein without departing from the scope of the present disclosure.