Abstract: An apparatus for directional processing is disclosed. The apparatus includes a workpiece support and an ion source, having a plurality of walls. An extraction aperture is disposed on at least one of the plurality of walls. In certain embodiments, the plurality of walls defines a hollow region. The hollow region is located above the portion of the workpiece that is being processed, allowing the etching byproducts can be evacuated without depositing on the ion source. The shape of the hollow region may be modified to further reduce the amount of deposition on the hollow ion source. Additionally, a pump may be disposed within or above the hollow region to facilitate the removal of the etching byproducts. In other embodiments, the extraction aperture of the ion source may be disposed at a corner of the plasma chamber.

Abstract: A chamber includes a target (16) and a magnetron (50) disposed over the target (16). The magnetron (50) includes a plurality of magnets (52, 54). The magnetron (50) has a longitudinal dimension and a lateral dimension. The longitudinal dimension of the magnetron (50) is tilted with respect to the target (16) so the distances between magnets (52, 54) and the target (16) vary. As the magnetron (50) rotates during operation, the strength of the magnetic field produced by the magnetron (50) is an average of the various strengths of magnetic fields produced by the magnets (52, 54). The averaging of the strengths of the magnetic fields leads to uniform film properties and uniform target erosion.

Abstract: An apparatus includes a target, wherein the target includes a nonuniform erosion profile. The apparatus also includes a number of interchangeable magnetic and non-magnetic inserts. The interchangeable magnetic and non-magnetic inserts are configured to control a pass through flux based on the nonuniform erosion profile.

Abstract: An arc evaporation source (101) according to one embodiment of the present invention comprises: a ring-shaped circumferential magnet (103) which is so arranged as to surround the outer circumference of a target (102) along a direction in which the direction of magnetization becomes parallel with the front surface of the target; and a rear surface magnet (104) which is arranged on the rear surface side of the target (102) along a direction in which the direction of magnetization becomes perpendicular to the front surface of the target. The magnetic pole of the circumferential magnet (103) on the inner side in the radial direction and the magnetic pole of the rear surface magnet (104) on the target (102) side have the same polarity as each other.

Abstract: The invention provides a sputter deposition assembly that includes a sputtering chamber, a sputtering target, and a magnet assembly. The magnet assembly includes a magnetic backing plate comprising an elongated flexible magnetic control body or a plurality of layered metal sheets.

Abstract: A magnet assembly for use in high power pulsed magnetron sputtering comprises a configuration of magnets having a magnetic field topology comprising magnetic field components Bx, By and Bz. A tangential magnetic field B// distribution on an x-y plane above the configuration of magnets comprising an outer continuous ring and one or more inner continuous rings contained in the outer continuous ring. A total magnetic field Btot distribution on an x-z plane intersecting the configuration of magnets comprises an outer closed loop and one or more inner closed loops contained in the outer closed loop, where, as a function of x, a tangential magnetic field B// alternates between (a) high field values greater than 200 G and high gradients in the z-direction of at least 1000 G/in, and (b) low field values of less than 50 G and low gradients in the z-direction of at most 250 G/in.

Abstract: The use of power-efficient transmitters to establish acoustic wave energy having low undesirable harmonics is achieved by adjusting the transmitter output waveform to minimize the undesirable harmonics. In one embodiment, both the timing and slope of the waveform edges are adjusted to produce the desired output waveform having little or no second harmonics. In the embodiment, output waveform timing adjustments on the order of fractions of the system clock interval are provided. This then allows for very fine control of a coarsely produced waveform. In one embodiment, the user can select the fine tuning to match the transmitter output signal to a particular load transducer.

Abstract: This disclosure describes systems, methods, and apparatuses for extinguishing electrical arcs in a plasma processing chamber. Once an arc is detected, the steady state voltage provided to the plasma processing chamber can be reduced, and the current being provided to the chamber decays below a steady state value as the arc is extinguished. When the current falls to or below a current threshold, the voltage can be ramped back up bringing the voltage and current back to steady state values. This technique enables power to return to a steady state level faster than traditional arc mitigation techniques.

Abstract: A method is provided for coating a substrate with the aid of a magnetron cathode and two electrodes which are alternately impinged upon by a positive potential and a negative potential. Also disclosed is an assembly for coating a substrate, comprising a vacuum chamber, a magnetron cathode, two electrodes, and a voltage source. A negative potential is generated at a level that is no greater than the level of the cathode potential, thus preventing the electrode that is to be cleaned from being stripped to a greater extent than the same was coated in the previous half-wave. The magnetron cathode and the electrodes are connected to the voltage source via switching elements without being galvanically such that a negative and a positive voltage generated from the voltage source can be alternatively applied to the electrodes, the level of said voltage being no greater than the cathode voltage.

Abstract: A magnet unit has a first magnet element and a second magnet element. The first magnet element includes a first magnet which is provided to stand upright on a yoke plate, a second magnet which is provided to stand upright on the yoke plate and has a magnetic pole unlike the first magnet, and a third magnet which is provided with a tilt between the first magnet and the second magnet. The second magnet element includes a fourth magnet which is provided to stand upright on the yoke plate, a fifth magnet which is arranged to stand upright on the yoke plate and has a magnetic pole unlike the fourth magnet, and a sixth magnet which is provided with a tilt between the fourth magnet and the fifth magnet. The first magnet element and the second magnet element are alternately arranged in an endless shape.

Abstract: Provided is a sputtering apparatus which deposits a metal catalyst on an amorphous silicon layer at an extremely low concentration in order to crystallize amorphous silicon, and particularly minimizes non-uniformity of the metal catalyst caused by a pre-sputtering process without reducing process efficiency. This sputtering apparatus improves the uniformity of the metal catalyst deposited on the amorphous silicon layer at an extremely low concentration. The sputtering apparatus includes a process chamber having first and second regions, a metal target located inside the process chamber, a target transfer unit moving the metal target and having a first shield for controlling a traveling direction of a metal catalyst discharged from the metal target, and a substrate holder disposed in the second region to be capable of facing the metal target.

Abstract: A sputtering apparatus comprises: a target holder; and a magnet unit of a rectangular shape having long and short sides. the magnet unit includes: a first magnet; a second magnet disposed surrounding the first magnet and magnetized in a different and opposite direction from a direction of magnetization of the first magnet, and a third magnet located at part between the first magnet and the second magnet in the short-side direction and at least at a center position between the first magnet and the second magnet, the third magnet being magnetized in the short-side direction. In the third magnet, a surface facing the second magnet has the same polarity as that of a surface of the second magnet on the target holder side, and a surface facing the first magnet has the same polarity as that of a surface of the first magnet on the target holder side.

Abstract: A film formation apparatus includes: a chamber having an inner space in which both a body to be processed and a target are disposed so that the body to be processed and the target are opposed to each other, a first magnetic field generation section generating a magnetic field in the inner space to which the target is exposed; a second magnetic field generation section generating a perpendicular magnetic field so as to allow perpendicular magnetic lines of force thereof to pass between the target the body to be processed; and a third magnetic field generation section disposed at upstream side of the target as seen from the second magnetic field generation section.

Abstract: Provided is a sputtering apparatus which deposits a metal catalyst on an amorphous silicon layer at an extremely low concentration in order to crystallize amorphous silicon, and particularly minimizes non-uniformity of the metal catalyst caused by a pre-sputtering process without reducing process efficiency. This sputtering apparatus improves the uniformity of the metal catalyst deposited on the amorphous silicon layer at an extremely low concentration. The sputtering apparatus includes a process chamber having first and second regions, a metal target located inside the process chamber, a target transfer unit moving the metal target and having a first shield for controlling a traveling direction of a metal catalyst discharged from the metal target, and a substrate holder disposed in the second region to be capable of facing the metal target.

Abstract: A sputtering target for a sputtering chamber comprises a backing plate with a sputtering plate mounted thereon. In one version, the backing plate comprises a circular plate having a front surface comprising an annular groove. The sputtering plate comprises a disk comprising a sputtering surface and a backside surface having a circular ridge that is shaped and sized to fit into the annular groove of the backing plate.

Abstract: A magnetron assembly including one or more magnetrons each forming a closed plasma loop on the sputtering face of the target. The target may include multiple strip targets on which respective strip magnetrons roll and are partially supported on a common support plate through a spring mechanism. The strip magnetron may be a two-level folded magnetron in which each magnetron forms a folded plasma loop extending between lateral sides of the strip target and its ends meet in the middle of the target. The magnets forming the magnetron may be arranged in a pattern having generally uniform straight portions joined by curved portion in which extra magnet positions are available near the corners to steer the plasma track. Multiple magnetrons, possibly flexible, may be resiliently supported on a scanned support plate and individually partially supported by rollers on the back of one or more targets.

Abstract: A target is provided opposite to a wafer mounted on in a vacuum chamber, and a magnet array body is disposed above the target. In the magnet array body, ring-shaped magnet arrays are arranged to generate annular magnetic fields in the circumferential direction of the wafer, and a sputtering film formation is performed by switching between the magnetic fields.

Abstract: A thin-film forming sputtering system capable of a sputtering process at a high rate. A thin-film forming sputtering system includes: a vacuum container; a target holder located inside the vacuum container; a target holder located inside the vacuum container; a substrate holder opposed to the target holder; a power source for applying a voltage between the target holder and the substrate holder; a magnetron-sputtering magnet provided behind the target holder, for generating a magnetic field having a component parallel to a target; and radio-frequency antennae for generating radio-frequency inductively-coupled plasma within a space in the vicinity of the target where the magnetic field generated by the magnetron-sputtering magnet has a strength equal to or higher than a predetermined level.

Abstract: A magnetron actuator for moving a magnetron in a nearly arbitrary radial and azimuthal path in the back of a target in a plasma sputter reactor. The magnetron includes two coaxial rotary shafts extending along the chamber central axis and coupled to two independently controllable rotary actuators. An epicyclic gear mechanism or a frog-leg structure mechanically couple the shafts to the magnetron to control its radial and azimuthal position. A vertical actuator moves the shafts vertically in tandem to vary the magnetron's separation from the target's back surface and compensate for erosion of the front surface. The rotary actuators may be separately coupled to the shafts or a rotatable ring gear may be coupled to the shafts through respectively fixed and orbiting idler gears. Two radially spaced sensors detect reflectors attached to the inner and outer arms of the epicyclic gear mechanism for homing of the controller.

Abstract: In a method of switching magnet flux distribution, a magnet is arranged on a rear side of a backing plate with respect to a target holding side thereof in a magnetron sputtering cathode, and placing an article that exhibits ferromagnetism at room temperature on the target holding side of the backing plate or removing the article therefrom so that the magnet flux distribution is switched between a balanced distribution of the magnetic flux and unbalanced distribution of the magnetic flux.

Abstract: A magnetron unit moving apparatus for preventing magnetization and magnetron sputtering equipment having the same. The magnetron unit moving apparatus includes a magnetron unit disposed adjacent to a target, to generate a specific magnetic field, and a movement unit to space the magnetron unit and the target apart such that a strength of a magnetic field generated over the target is within a predetermined reference strength range. It is possible to space the target and the magnetron unit apart so as to prevent the target from being magnetized when a process is not performed.

Abstract: A multi-step process performed in a plasma sputter chamber including sputter deposition from the target and argon sputter etching of the substrate. The chamber includes a quadruple electromagnetic coil array coaxially arranged in a rectangular array about a chamber axis outside the sidewalls of a plasma sputter reactor in back of an RF coil within the chamber. The coil currents can be separately controlled to produce different magnetic field distributions, for example, between a sputter deposition mode in which the sputter target is powered to sputter target material onto a wafer and a sputter etch mode in which the RF coil supports the argon sputtering plasma. A TaN/Ta barrier is first sputter deposited with high target power and wafer bias. Argon etching is performed with even higher wafer bias. A flash step is applied with reduced target power and wafer bias.

Abstract: A seal and fixation assembly includes a cylindrical target having an inside surface with a shoulder that forms a stop within the target. A target retaining ring is disposed about the target. A seal plate is disposed within the target and engages the stop and the inside surface of the target. An end cap is disposed on the end of the target and includes a portion with a beveled surface within the target. A sealing element is disposed between the inside surface of the target, the seal plate, and the beveled surface of the end cap. A clamp is disposed over the end cap and the target retaining ring. Engagement of the end cap and the target retaining ring with the clamp causes the end cap to move within the target toward the stop to compress the sealing element between the target, the seal plate, and the beveled surface.

Abstract: A plasma apparatus includes: a chamber which can be evacuated into vacuum; first electrode disposed within the chamber; a magnet mechanism having a magnet provided apart from and above the first electrode; a second electrode provided facing the first electrode; and a magnetic shield member provided in at least one of gaps between the first electrode and the magnet mechanism and between the first electrode and the second electrode.

Abstract: Method for manufacturing magnetron coated substrates, in which along the target and on its backside pointing from the substrate, a magnet arrangement is present by which along the sputter surface of the target at least one closed loop of a tunnel shaped magnetron magnetic field is generated, characterized in that for setting the sputter rate distribution the distance of a part of the magnet arrangement to the backside of the target is changed.

Abstract: To provide a magnetron sputtering cathode, a magnetron sputtering apparatus, and a method of manufacturing a magnetic device, capable of generating a leakage magnetic field sufficiently large to form a magnetic tunnel necessary for discharge on the surface of a target even when the target is a magnetic body and thick and a ferromagnetic body is used as the target. The magnetron sputtering cathode of the present invention includes a target having a second annular groove provided on the sputtering surface of the target, a third annular projection provided on the non-sputtering surface of the target, a fourth annular groove provided outside the third annular projection on the non-sputtering surface, and a fourth annular projection provided outside the fourth annular groove on the non-sputtering surface. Further, the magnetron sputtering cathode includes a first magnet and a second magnet 6 having a polarity different from that of the first magnet on the non-sputtering surface side.

Abstract: A control system and method for controlling two motors determining the azimuthal and circumferential position of a magnetron rotating about the central axis of the sputter chamber in back of its target sputtering and capable of a nearly arbitrary scan path, e.g., with a planetary gear mechanism. A system controller periodically sends commands to the motion controller which closely controls the motors. Each command includes a command ticket, which may be one of several values. The motion controller accepts only commands having a command ticket of a different value from the immediately preceding command. One command selects a scan profile stored in the motion controller, which calculates motor signals from the selected profile. Another command instructs a dynamic homing command which interrogates sensors of the position of two rotating arms to determine if the arms in the expected positions. If not, the arms are rehomed.

Abstract: To be able to realize a relatively wide magnetron sputter cathode, it is proposed that on the vacuum side of a carrier (2) is disposed the sputter target (4) with a backing plate (3), which maintains a gap (14) from the carrier (2). The backing plate (3) is developed as a cooling plate. In it are located cooling means channels (15), which, via an inlet (16) through the carrier (2), are supplied with cooling fluid, which can flow out again via an outlet (17) through the carrier (2). On the atmospheric side is located a magnet configuration (5).

Abstract: A vacuum processing apparatus includes an evacuatable vacuum chamber, a substrate holder which is provided in the vacuum chamber, has a substrate chuck surface vertically facing down, and includes an electrostatic chuck mechanism which electrostatically chucks a substrate, a substrate support member which is provided in the vacuum chamber to keep the substrate parallel to the substrate chuck surface and support the substrate in an orientation that allows the substrate chuck surface to chuck the substrate, and a moving mechanism which moves at least one of the substrate holder and the substrate supported by the substrate support member so as to bring the substrate and the substrate holder into contact with each other, thereby causing the substrate holder to chuck the substrate.

Abstract: A sputtering apparatus with high usage efficiency of a target is provided. A sputtering apparatus of the present invention includes first and second ring magnets, first and second magnet members arranged inside a ring of the first and second ring magnets, wherein in the first and second ring magnets and the first and second magnet members, magnetic poles with the same magnetism are faced toward the rear surface of a first and a second targets. Thus, in the rear surface of the first and second targets, the magnetic poles with the same polarity are adjacently arranged, and the absolute value of the strength of horizontal magnetic field components formed in the surfaces of the first and second targets becomes small and the strength distribution becomes narrow, and the strength of vertical magnetic field components becomes uniform; and consequently, a non-erosion portion is not produced in the first and second targets.

Abstract: The present invention provides a magnet unit and a magnetron sputtering apparatus which can suppress the consumption amount of a target by efficiently consuming the target and can easily cause erosion on the target to progress uniformly regardless whether the target size is small or large and whether the target is made of magnetic material or not.

Abstract: In the present invention, in forming a LaB6 thin film by magnetron sputtering, the single-crystal properties in the wide domain direction in the obtained LaB6 thin film are improved. In one embodiment of the present invention, in a magnetron sputtering apparatus, parallel magnetic field strength on a surface of the substrate is set to 0.1 times or less parallel magnetic field strength on a surface of the target.

Abstract: A magnet structure and the like are provided, which can reduce the labor required to make a magnet design for producing a tunnel-shaped leakage magnetic field for plasma confinement in a well-balanced manner over an obverse surface of a target, based on a quadridirectional magnetic field produced by magnetic interaction between plural magnets.

Abstract: A sputtering apparatus for ensuring high target utilization efficiency is provided. The sputtering apparatus 1 of the present invention comprises a moving means 28a, 28b so that first and second magnet members 23a, 23b can be moved by the moving means 28a, 28b in planes parallel to the surfaces of first and second targets 21a, 21b. When the first and second magnet members 23a, 23b move, magnetic field lines as well as deeply eroded regions on the surfaces of the first and second targets 21a, 21b also move, whereby large areas on the surfaces of the first and second targets 21a, 21b are sputtered.

Abstract: Methods and apparatus to improve target life and deposition uniformity in PVD chambers are provided herein. In some embodiments, a magnetron assembly includes a shunt plate having a central axis, the shunt plate rotatable about the central axis, a first open loop magnetic pole arc coupled to the shunt plate at a first radius from the central axis, and a second open loop magnetic pole arc coupled the shunt plate at a first distance from the first open loop magnetic pole arc, wherein at least one of the first radius varies along the first open loop magnetic pole arc or the first distance varies along the second open loop magnetic pole arc. In some embodiments, a first polarity of the first open loop magnetic pole arc opposes a second polarity of the second open loop magnetic pole arc.

Abstract: A magnetron sputtering device includes a main body and a magnet mounting system for receiving magnets. The magnet mounting system comprises a first annular member, a second annular member coaxially encasing the first member, a third annular member coaxially encasing the second member, a first driving device connected to the first annular member, a second driving device connected to the second annular member, and a third driving device connected to the third annular member. The first driving device, the second driving device, and the third driving device are respectively configured for driving the first annular member, the second annular member, and the third annular member to move along an axis of the first annular member.

Abstract: A high power impulse magnetron sputtering apparatus and method using a vacuum chamber with a magnetron target and a substrate positioned in the vacuum chamber. A field coil being positioned between the magnetron target and substrate, and a pulsed power supply and/or a coil bias power supply connected to the field coil. The pulsed power supply connected to the field coil, and the pulsed power supply outputting power pulse widths of greater that 100 ?s.

Abstract: A physical vapor deposition reactor includes a metal sputter target, a D.C. sputter power source coupled to the metal sputter target and a wafer support pedestal facing the metal sputter target. A movable magnet array is adjacent a side of the metal sputter target opposite the wafer support pedestal. A solid metal RF feed rod engages the metal sputter target and extends from a surface of the target on a side opposite the wafer support pedestal. A VHF impedance match circuit is coupled to an end of the RF feed rod opposite the metal sputter target and a VHF RF power generator coupled to said VHF impedance match circuit. Preferably, the reactor of further includes a center axle about which the movable magnet array is rotatable, the center axle having an axially extending hollow passageway, the RF feed rod extending through the passageway.

Abstract: A plasma sputter chamber and process for sputtering ruthenium and tantalum at low pressure or with self-sustained sputtering (SSS). The source magnetron is strongly unbalanced and of sufficient size to project the unbalanced magnetic field toward the wafer to increase the ionization probability. Sputter etch uniformity is increased by the use of an auxiliary magnet system rotating with the source magnetron but placed towards the center of rotation. It may be a larger, nearly balanced auxiliary magnetron with an outer polarity matching that of the source magnetron or an array of magnets of that polarity. An integrated process includes a directional deposition of the refractory metal and its nitride, a sputter etch, and a flash deposition.

Abstract: Provided is a rotary magnet sputtering apparatus which includes a plasma shielding member and an outer wall connected to the ground and which has a series resonant circuit and a parallel resonant circuit between the plasma shielding member and the outer wall. The series resonant circuit has a very low impedance only at its resonant frequency while the parallel resonant circuit has a very high impedance only at its resonant frequency. With this configuration, the impedance between substrate RF power and the plasma shielding member becomes very high so that it is possible to suppress the generation of plasma between a substrate 10 to be processed and the plasma shielding member. Further, since a series resonant circuit is provided between a target and the ground, the RF power is efficiently supplied only to a region where the substrate passes under the target, so that a self-bias voltage is generated.

Abstract: A sputtering apparatus includes a process chamber having first and second regions, a metal target inside the process chamber, a target transfer unit inside the process chamber, the target transfer unit being configured to move the metal target between the first and second regions, a substrate holder in the second region of the process chamber, and a magnetic assembly in the first region of the process chamber, the magnetic assembly being interposed between the target transfer unit and a wall of the process chamber.

Abstract: A plasma-enhanced physical vapor deposition method in which VHF power is applied to the sputter target in addition to a D.C. voltage that is also applied to the target, the VHF power level being 3.5 kW or greater, so that the D.C. target power may be reduced to less than 500 W while still attaining a very high ion fraction (in excess of 50%), permitting a very small workpiece-to-target spacing not exceeding a fraction (7/30) of the workpiece diameter to enhance the ionization fraction throughout the process region.

Abstract: A rectangular magnetron placed at the back of a rectangular sputtering target for coating a rectangular panel and having magnets of opposed polarities arranged to form a gap therebetween corresponding to a plasma track adjacent the target which extends in a closed serpentine or spiral loop. The spiral may have a large number of wraps and the closed loop may be folded before wrapping. The magnetron has a size only somewhat less than that of the target and is scanned in the two perpendicular directions of the target with a scan length of, for example, about 100 mm for a 2 m target corresponding to at least the separation of the gap between parallel portions of the loop. A central ferromagnetic shim beneath some magnets in the loop may compensate for vertical droop. The magnetron may be scanned in two alternating double-Z patterns rotated 90° between them.

Abstract: A method for substrate processing includes producing a magnetic field by a magnetron across the full width of a sputtering surface of a target in a first direction. The magnetron can produce two erosion grooves separated by a distance S on the sputtering surface. The method includes moving the magnetron continuously at a first speed by the distance S in a first segment along a linear travel path. The linear travel path is along a second direction perpendicular to the first direction. The method includes continuously sputtering a material off the sputtering surface and depositing the material on the substrate during the first segment, and moving the magnetron by the distance S in a second segment along the linear travel path at a second speed higher than the first speed without sputtering the material off the sputtering surface or sputtering materials off at significant lower rate.

Abstract: In a rotary magnet sputtering apparatus, a target consumption displacement quantity is measured, and corresponding to the measurement results, a distance between a rotating magnet group and a target is adjusted, and uniform film forming rate is achieved over a long period of time so as to reduce the change of a target surface due to consumption of the target and to reduce the change of the film forming rate with time. An ultrasonic sensor or a laser transmitting/receiving device may be used as a means for measuring the consumption displacement quantity of the target.

Abstract: The present invention relates to a magnetron sputtering device including a large ring cathode having a defined inner radius. The position of the ring cathode is offset in relation to a center point of a planetary drive system. An anode or reactive gas source may be located within the inner radius of the ring cathode. Lower defect rates are obtained through the lower power density at the cathode which suppresses arcing, while runoff is minimized by the cathode to planet geometry without the use of a mask.

Abstract: There is provided an inexpensive cathode unit which is simple in construction and is capable of forming a film at good coating characteristics relative to each of micropores of high aspect ratio throughout an entire surface of a substrate. There is also provided a sputtering apparatus provided with the cathode unit. The cathode unit of this invention has a holder formed with one or more recessed portions on one surface thereof. Inside the recessed portions there are mounted bottomed cylindrical target members from the bottom side thereof. Into a space inside each of the target members there are built magnetic field generating means for generating magnetic fields.

Abstract: Sputtering in a physical vapor deposition (PVD) chamber may, in one embodiment, utilize a target laterally offset from and tilted with respect to the substrate. In another aspect, target power may be reduced to enhance film protection. In yet another aspect, magnetron magnets may be relatively strong and well balanced to enhance film protection. In another aspect, a shutter may be provided to protect the substrate in start up conditions. Other embodiments are described and claimed.

Abstract: The invention is directed toward a method and apparatus which can be used to allow the sputter deposition of material onto at least one article to form a coating on the same. The new form of magnetron described herein allows an increase in sputter deposition rates to be achieved at higher powers and without causing damage to the coating being created. This can be achieved by improved cooling and use of a relatively high magnetic field in the magnetron while at the same time increasing the power to the magnetron by increasing the current at a rate faster than the voltage.

Abstract: Rotatable magnetron sputtering apparatuses are described for depositing material from a target while reducing premature burn through issues. The rotatable magnetron sputtering apparatus includes electric coils wound on pole pieces to modulate the magnetic fields at the ends of the magnetron magnetic assembly. Changing the direction of electric current moves the sputtering region alternately around its normal central position to decrease the rate of erosion depth at the ends of the target material.