In-situ temperature control during chemical mechanical polishing with a condensed gas

    公开(公告)号:US10058975B2

    公开(公告)日:2018-08-28

    申请号:US15410512

    申请日:2017-01-19

    Inventor: Brian J. Brown

    Abstract: Implementations of the present disclosure generally relate to planarization of surfaces on substrates and on layers formed on substrates, including an apparatus for in-situ temperature control during polishing, and methods of using the same. More specifically, implementations of the present disclosure relate to in-situ temperature control with a condensed gas during a chemical-mechanical polishing (CMP) process. In one implementation, the method comprises polishing one or more substrates against a polishing surface in the presence of a polishing fluid during a polishing process to remove a portion of a material formed on the one or more substrates. A temperature of the polishing surface is monitored during the polishing process. Carbon dioxide snow is delivered to the polishing surface in response to the monitored temperature to maintain the temperature of the polishing surface at a target value during the polishing process.

    SUBSTRATE RINSING SYSTEMS AND METHODS
    12.
    发明申请
    SUBSTRATE RINSING SYSTEMS AND METHODS 有权
    基板冲压系统和方法

    公开(公告)号:US20160175857A1

    公开(公告)日:2016-06-23

    申请号:US14626903

    申请日:2015-02-19

    CPC classification number: H01L21/67051 B05B1/046 H01L21/02052 H01L21/67057

    Abstract: An example waterfall apparatus includes (1) a first portion of a first width having (a) a first plenum, a second plenum, and a restricted fluid path therebetween; (b) a first coupling surface; and (c) an inlet opening that creates a fluid path between the first coupling surface and the first plenum; and (2) a second portion of a second width larger than the first width and having (a) a second coupling surface; and (b) an inlet aligned with the first portion inlet opening. The first and second coupling surfaces form a slot that extends along at least a portion of a length of the waterfall apparatus and that connects to the second plenum. Fluid introduced into the second portion inlet fills the first plenum, travels through the restricted fluid path to the second plenum, and exits the slot between the first and second portions to form a rinsing fluid waterfall.

    Abstract translation: 示例性瀑布装置包括(1)第一宽度的第一部分,其具有(a)第一增压室,第二增压室和它们之间的限制流体路径; (b)第一耦合表面; 和(c)入口开口,其在所述第一联接表面和所述第一增压室之间产生流体路径; 和(2)第二宽度大于第一宽度的第二部分,并且具有(a)第二联接表面; 和(b)与第一部分入口开口对准的入口。 第一和第二联接表面形成沿着瀑布装置的长度的至少一部分延伸并连接到第二增压室的槽。 引入第二部分入口的流体填充第一集气室,穿过受限制的流体路径到达第二集气室,并且离开第一和第二部分之间的槽,以形成冲洗流体瀑布。

    Wafer edge asymmetry correction using groove in polishing pad

    公开(公告)号:US11951589B2

    公开(公告)日:2024-04-09

    申请号:US16953139

    申请日:2020-11-19

    CPC classification number: B24B37/26 B24B37/005 B24B37/042 B24B37/27

    Abstract: A chemical mechanical polishing system includes a platen to hold a polishing pad, a carrier head to hold a substrate against a polishing surface of the polishing pad, and a controller. The polishing pad has a polishing control groove. The carrier is laterally movable by a first actuator across the polishing pad and rotatable by a second actuator. The controller synchronizes lateral oscillation of the carrier head with rotation of the carrier head such that over a plurality of successive oscillations of the carrier head such that when a first angular swath of an edge portion of the substrate is at an azimuthal angular position about an axis of rotation of the carrier head the first angular swath overlies the polishing surface and when a second angular swath of the edge portion of the substrate is at the azimuthal angular position the second angular swath overlies the polishing control groove.

    TEMPERATURE AND SLURRY FLOW RATE CONTROL IN CMP

    公开(公告)号:US20240025006A1

    公开(公告)日:2024-01-25

    申请号:US18478723

    申请日:2023-09-29

    CPC classification number: B24B37/015 B24B57/02

    Abstract: A chemical mechanical polishing system includes a polishing a port to dispense polishing liquid onto a polishing pad and a liquid flow controller to control a flow rate of the polishing liquid to the port, a temperature control system to control a temperature of the polishing pad, and a control system. The control system is configured to obtain a baseline removal rate, a baseline temperature and a baseline polishing liquid flow rate. A function is stored relating removal rate to polishing liquid flow rate and temperature. The function is used to determine a reduced polishing liquid flow rate and an adjusted temperature such that a resulting removal rate is not below the baseline removal rate. The liquid flow controller is controlled to dispense the polishing liquid at the reduced polishing liquid flow rate and control the temperature control system so that the polishing process reaches the adjusted temperature.

    Temperature and slurry flow rate control in CMP

    公开(公告)号:US11826872B2

    公开(公告)日:2023-11-28

    申请号:US17357802

    申请日:2021-06-24

    CPC classification number: B24B37/015 B24B57/02

    Abstract: A chemical mechanical polishing system includes a polishing a port to dispense polishing liquid onto a polishing pad and a liquid flow controller to control a flow rate of the polishing liquid to the port, a temperature control system to control a temperature of the polishing pad, and a control system. The control system is configured to obtain a baseline removal rate, a baseline temperature and a baseline polishing liquid flow rate. A function is stored relating removal rate to polishing liquid flow rate and temperature. The function is used to determine a reduced polishing liquid flow rate and an adjusted temperature such that a resulting removal rate is not below the baseline removal rate. The liquid flow controller is controlled to dispense the polishing liquid at the reduced polishing liquid flow rate and control the temperature control system so that the polishing process reaches the adjusted temperature.

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