Patents Assigned to Lam Research
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Patent number: 8833380Abstract: A device for treating a disc-like article with a fluid, including elements for dispensing a fluid onto the article and a chuck for holding and rotating the article around an axis perpendicular thereto, the chuck including a base body, a drive ring, and gripping members for contacting the article at its edge. The gripping members are eccentrically movable with respect to the center of the article and driven by a drive ring rotatably mounted to the base body so that the drive ring is rotatable against the base body around the axis. The relative rotational movement of the drive ring against the base body is carried out by either holding the base body and rotating the drive ring or by holding the drive ring and rotating the base body, whereby the to-be-held-part (drive ring or base body) is held without touching the respective to-be-held-part by magnetic force.Type: GrantFiled: August 25, 2011Date of Patent: September 16, 2014Assignee: Lam Research AGInventors: Rainer Obweger, Franz Kumnig, Thomas Wirnsberger
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Patent number: 8832916Abstract: A method for dechucking a substrate from an electrostatic chuck (ESC) in a plasma processing system is provided. The method includes flowing a first gas into a plasma chamber. The method also includes flowing a second gas to a backside of the substrate to create a high pressure buildup of the second gas under the backside. The method further includes reducing a flow of the second gas such that at least a portion is trapped under the substrate backside. The method yet also includes pumping out the plasma chamber to increase a pressure differential between a first pressure that exists under the backside of the substrate and a second pressure that exists in a region above the substrate, wherein the pressure differential enables the substrate to be lifted from the ESC. The method yet also includes removing the substrate from the ESC.Type: GrantFiled: July 12, 2011Date of Patent: September 16, 2014Assignee: Lam Research CorporationInventor: Henry S. Povolny
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Publication number: 20140251382Abstract: A method suctions liquid from an upper surface of a substrate as the substrate is transported by a carrier under a head in a chamber. This operation is performed by the first section of the head. The method causes a first film of cleaning foam to flow onto the upper surface of the substrate as the substrate proceeds under the head. This operation is performed by a second section which is contiguous to the first section in the head. The method causes a second film of rinsing fluid to flow onto the upper surface of the substrate as the substrate is carried under the head. This rinsing operation is performed by a third section which is contiguous to the second section in the head and which is defined partially around the second section and up to the first section.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: Lam Research CorporationInventors: Arnold Kholodenko, Cheng-Yu Lin, Leon Ginzburg, Mark Mandelboym, Greg Tomasch, Anwar Husain
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Publication number: 20140256142Abstract: A method for etching an etch layer is provided. A glue layer having metallizable terminations is formed over the etch layer. The glue layer is exposed to a patterned light, wherein the metallizable terminations of the glue layer illuminated by the patterned light become unmetallizable. A metal deposition layer is formed on the glue layer, wherein the metal deposition layer only deposits on areas of the glue layer with metallizable terminations of the glue layer. The etch layer is etched through portions of the glue layer without the metal deposition layer.Type: ApplicationFiled: March 8, 2013Publication date: September 11, 2014Applicant: Lam Research CorporationInventor: Yezdi N. DORDI
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Publication number: 20140256066Abstract: Methods, systems, and computer programs are presented for reducing chamber instability while processing a semiconductor substrate. One method includes an operation for identifying a first recipe with steps having an operating frequency equal to the nominal frequency of a radiofrequency (RF) power supply. Each step is analyzed with the nominal frequency, and the analysis determines if any step produces instability at the nominal frequency. The operating frequency is adjusted, for one or more of the steps, when the instability in the one or more steps exceeds a threshold. The adjustment acts to find an approximate minimum level of instability. A second recipe is constructed after the adjustment, such that at least one of the steps includes a respective operating frequency different from the nominal frequency. The second recipe is used to etch the one or more layers disposed over the substrate in the semiconductor processing chamber.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: Lam Research CorporationInventor: Arthur Sato
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Patent number: 8828145Abstract: Apparatus and methods for removing particle contaminants from a surface of a substrate includes coating a layer of a viscoelastic material on the surface. The viscoelastic material is coated as a thin film and exhibits substantial liquid-like characteristic. An external force is applied to a first area of the surface coated with the viscoelastic material such that a second area of the surface coated with the viscoelastic material is not substantially subjected to the applied force. The force is applied for a time duration that is shorter than a intrinsic time of the viscoelastic material so as to access solid-like characteristic of the viscoelastic material. The viscoelastic material exhibiting solid-like characteristic interacts at least partially with at least some of the particle contaminants present on the surface.Type: GrantFiled: March 10, 2009Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventors: Yizhak Sabba, Seokmin Yun, Mark Kawaguchi, Mark Wilcoxson, Dragan Podlesnik
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Patent number: 8828744Abstract: A method for etching trenches in an etch layer disposed below a patterned organic mask is provided. The patterned organic mask is treated, comprising flowing a treatment gas comprising H2 and N2, forming a plasma from the treatment gas, making patterned organic mask more resistant to wiggling, and stopping the flow of the treatment gas. Trenches are etched in the etch layer through the patterned organic mask.Type: GrantFiled: September 24, 2012Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventors: Joseph J. Vegh, Yungho Noh
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Patent number: 8828259Abstract: A method for automatically performing power matching using a mechanical RF match during substrate processing is provided. The method includes providing a plurality of parameters for the substrate processing wherein the plurality of parameters including at least a predefined number of learning cycles. The method also includes setting the mechanical RF match to operate in a mechanical tuning mode. The method further includes providing a first set of instructions to the substrate processing to ignore a predefined number of cycles of Rapid Alternating Process RAP steps. The method yet also includes operating the mechanical RF match in the mechanical tuning mode for the predefined number of learning cycles. The method yet further includes determining a set of optimal capacitor values. The method moreover includes providing a second set of instructions to a power generator to operate in a frequency tuning mode.Type: GrantFiled: July 7, 2011Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventor: Arthur H. Sato
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Patent number: 8826857Abstract: In one embodiment, a plasma processing assembly may include an upper process body coupled to a hinge body and a lower process body coupled to a base hinge member. The hinge body can be pivotally engaged with the base hinge member. A self locking latch can be pivotally engaged with the base hinge member. When the hinge body is rotated around the first axis of rotation, the protruding latch engagement member can contact the self locking latch and can rotate the self locking latch around the second axis of rotation opposite to the bias direction. The self locking latch can rotate around the second axis of rotation in the bias direction and can block the hinge body from rotating around the first axis of rotation.Type: GrantFiled: December 9, 2011Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventor: Greg Sexton
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Patent number: 8826855Abstract: Described herein is a confinement ring useful as a component of a capacitively-coupled plasma processing chamber. Inner surfaces of the confinement ring provide an extended plasma confinement zone surrounding a gap between an upper electrode and a lower electrode on which a semiconductor substrate is supported during plasma processing in the chamber.Type: GrantFiled: June 30, 2010Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventors: Michael C. Kellogg, Alexei Marakhtanov, Rajinder Dhindsa
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Patent number: 8828863Abstract: A method for providing metal filled features in a layer is provided. A nonconformal metal seed layer is deposited on tops, sidewalls, and bottoms of the features, wherein more seed layer is deposited on tops and bottoms of features than sidewalls. The metal seed layer are etched back on tops, sidewalls, and bottoms of the features, wherein some metal seed layer remains on tops and bottoms of the features. Deposition on the seed layer on tops of the features is suppressed. An electroless “bottom up” deposition of metal is provided to fill the features.Type: GrantFiled: June 25, 2013Date of Patent: September 9, 2014Assignee: Lam Research CorporationInventors: William T. Lee, Xiaomin Bin
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Patent number: 8821681Abstract: Disclosed is an apparatus for wet treatment of a disc-like article, which comprises: a spin chuck for holding and rotating the disc-like article, and an inner edge nozzle dispensing treatment liquid directed towards a first peripheral region of the first surface of the disc-like article, wherein the first surface is facing the spin chuck and the first peripheral region is defined as being a region of the first surface with an inner radius (ri), which is greater than 1 cm less than the disc-like article's radius (ra), wherein the inner edge nozzle is positioned in a stationary manner between the disc-like article (when placed on the spin chuck) and the spin chuck, wherein the inner edge nozzle is feed through a central pipe, which is disposed in a stationary manner and penetrates centrally through the spin chuck, for supplying a treatment liquid against a first surface of the disc-like article.Type: GrantFiled: July 3, 2008Date of Patent: September 2, 2014Assignee: Lam Research AGInventors: Michael Puggl, Alexander Schwartzfurtner, Dieter Frank
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Patent number: 8822344Abstract: A method for etching an etch layer is provided. A glue layer having metallizable terminations is formed over the etch layer. The glue layer is exposed to a patterned light, wherein the metallizable terminations of the glue layer illuminated by the patterned light become unmetallizable. A metal deposition layer is formed on the glue layer, wherein the metal deposition layer only deposits on areas of the glue layer with metallizable terminations of the glue layer. The etch layer is etched through portions of the glue layer without the metal deposition layer.Type: GrantFiled: March 8, 2013Date of Patent: September 2, 2014Assignee: Lam Research CorporationInventor: Yezdi N. Dordi
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Patent number: 8821639Abstract: An apparatus for control of a temperature of a substrate has a temperature-controlled base, a heater, a metal plate, a layer of dielectric material. The heater is thermally coupled to an underside of the metal plate while being electrically insulated from the metal plate. A first layer of adhesive material bonds the metal plate and the heater to the top surface of the temperature controlled base. This adhesive layer is mechanically flexible, and possesses physical properties designed to balance the thermal energy of the heaters and an external process to provide a desired temperature pattern on the surface of the apparatus. A second layer of adhesive material bonds the layer of dielectric material to a top surface of the metal plate. This second adhesive layer possesses physical properties designed to transfer the desired temperature pattern to the surface of the apparatus.Type: GrantFiled: September 19, 2011Date of Patent: September 2, 2014Assignee: Lam Research CorporationInventors: Anthony J. Ricci, Keith Comendant, James Tappan
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Patent number: 8822345Abstract: A plasma processing apparatus includes a gas distribution member which supplies a process gas and radio frequency (RF) power to a showerhead electrode. The gas distribution member can include multiple gas passages which supply the same process gas or different process gases at the same or different flow rates to one or more plenums at the backside of the showerhead electrode. The gas distribution member provides a desired process gas distribution to be achieved across a semiconductor substrate processed in a gap between the showerhead electrode and a bottom electrode on which the substrate is supported.Type: GrantFiled: November 7, 2012Date of Patent: September 2, 2014Assignee: Lam Research CorporationInventors: Rajinder Dhindsa, Eric Lenz
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Patent number: 8813764Abstract: Apparatus, methods and systems for physically confining a liquid medium applied over a semiconductor wafer include a first and a second chemical head that are disposed to cover at least a portion of a top and an underside surface of the semiconductor wafer. Each of the first and the second chemical heads include an angled inlet conduit at a leading edge of the respective chemical heads to deliver liquid chemistry into a pocket of meniscus in a single phase. The pocket of meniscus is defined over the portion of the top and underside surface of the semiconductor wafer covered by the chemical heads and is configured to receive and contain the liquid chemistry applied to the surface of the semiconductor wafer as a meniscus. A step is formed at a leading edge of the first and second chemical heads along an outer periphery of the pocket of meniscus to substantially confine the meniscus of the liquid chemistry within the pocket of meniscus.Type: GrantFiled: May 29, 2009Date of Patent: August 26, 2014Assignee: Lam Research CorporationInventors: Enrico Magni, Eric Lenz
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Patent number: 8815745Abstract: A method of forming features in a porous low-k dielectric layer disposed below a patterned organic mask is provided. Features are etched into the porous low-k dielectric layer through the patterned organic mask, and then the patterned organic mask is stripped. The stripping of the patterned organic mask includes providing a stripping gas comprising COS, forming a plasma from the stripping gas, and stopping the stripping gas. A cap layer may be provided between the porous low-k dielectric layer and the patterned organic mask. The stripping of the patterned organic mask leaves the cap layer on the porous low-k dielectric layer.Type: GrantFiled: January 27, 2009Date of Patent: August 26, 2014Assignee: Lam Research CorporationInventors: Sean S. Kang, Sang Jun Cho, Thomas S. Choi
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Publication number: 20140235063Abstract: An edge ring assembly is disclosed for use in a plasma processing chamber, which includes an RF conductive ring positioned on an annular surface of a base plate and configured to surround an upper portion of the baseplate and extend underneath an outer edge of a wafer positioned on the upper surface of the baseplate, and a wafer edge protection ring positioned above an upper surface of the RF conductive ring and configured to extend over the outer edge of the wafer. The protection ring has an inner edge portion with a uniform thickness, which extends over the outer edge of the wafer, a conical upper surface extending outward from the inner edge portion to a horizontal upper surface, an inner annular recess which is positioned on the upper surface of the RF conductive and configured to extend over the outer edge of the wafer.Type: ApplicationFiled: February 7, 2014Publication date: August 21, 2014Applicant: Lam Research CorporationInventors: Brian McMillin, Arthur Sato, Neil Benjamin
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Publication number: 20140235061Abstract: A method of ductile mode machining a component of a plasma processing apparatus wherein the component is made of nonmetallic hard and brittle material wherein the method comprises single point turning the component with a diamond cutting tool causing a portion of the nonmetallic hard and brittle material to undergo a high pressure phase transformation to form a ductile phase portion of the hard and brittle material during chip formation wherein a turned surface is formed from a phase changed material and the turned surface is a grooved textured surface of phase changed material.Type: ApplicationFiled: February 20, 2013Publication date: August 21, 2014Applicant: LAM RESEARCH CORPORATIONInventors: John F. Stumpf, Timothy Dyer, David Allen Ruberg, Lihua L. Huang
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Publication number: 20140235056Abstract: A system and method of ion milling performed in a plasma etch system including a plasma etch chamber, multiple process gas sources coupled to the plasma etch chamber, a radio frequency bias source and a controller. The plasma etch chamber including a substrate support. The substrate support being a non-pivoting and non-rotating substrate support. The substrate support capable of supporting a substrate to be processed on a top surface of the substrate support without use of a mechanical clamp device. The plasma etch chamber also including an upper electrode disposed opposite from the top surface of the substrate support. The radio frequency bias source is coupled to the substrate support. The controller is coupled to the plasma etch chamber, the multiple process gas sources and the radio frequency bias source. The controller including logic stored on computer readable media for performing an ion milling process in the plasma etch chamber.Type: ApplicationFiled: February 20, 2013Publication date: August 21, 2014Applicant: LAM RESEARCH CORPORATIONInventors: Joydeep Guha, Butsurin Jinnai, Jun Hee Han, Aaron Eppler