TARGET SUPPLY SYSTEM, EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD

    公开(公告)号:US20230284364A1

    公开(公告)日:2023-09-07

    申请号:US18163023

    申请日:2023-02-01

    申请人: Gigaphoton Inc.

    IPC分类号: H05G2/00 G03F7/20

    摘要: A target supply system includes a target generation unit configured to generate a liquid target substance by melting a solid target substance at an inside thereof, and output the liquid target substance; an input mechanism configured to introduce the solid target substance to the target generation unit; a heater arranged at the target generation unit; a sensor configured to detect a temperature of the target generation unit; and a processor configured to control an input timing at which the solid target substance is introduced to the target generation unit, perform feedback control on the heater based on a present temperature detected by the sensor, and perform feedforward control on the heater based on the input timing while performing feedback control on the heater.

    Extreme ultraviolet light generation device and target supply device

    公开(公告)号:US10955760B2

    公开(公告)日:2021-03-23

    申请号:US16812831

    申请日:2020-03-09

    申请人: Gigaphoton Inc.

    IPC分类号: G03F7/20 H05G2/00

    摘要: An extreme ultraviolet light generation device includes: a target supply unit including a nozzle through which a target substance in a liquid form is output into a chamber; a piezoelectric element configured to vibrate the nozzle under a droplet connection condition to regularly generate a droplet of the target substance; and a control unit configured to perform search processing of changing a drive condition of the piezoelectric element to search for a drive condition of the piezoelectric element corresponding to the droplet connection condition and configured to set a drive condition of the piezoelectric element used for generation of extreme ultraviolet light based on a result of the search processing. The control unit preliminarily drives the piezoelectric element before performing the search processing and starts the search processing after performing the preliminary drive.

    Extreme ultraviolet light generation apparatus

    公开(公告)号:US10524343B2

    公开(公告)日:2019-12-31

    申请号:US16429331

    申请日:2019-06-03

    申请人: Gigaphoton Inc.

    IPC分类号: H05G2/00 G03F7/20

    摘要: An extreme ultraviolet light generation apparatus includes: a chamber; a target supply unit that supplies a droplet of a target substance to a plasma generation region in the chamber; a first pipe at least partly covering a trajectory of the droplet and having a first opened end part as an upstream end part and a second opened end part as a downstream end part in a trajectory direction; a second pipe at least partly covering the first pipe with a gap between the second pipe and the first pipe, and having a third end part, opened and extending downstream of the second end part of the first pipe in the trajectory direction, as a downstream end part in the trajectory direction; and a gas supply unit that supplies gas flowing through the gap and causes the gas to flow in the trajectory direction out of a gas exit.

    Target storage device
    4.
    发明授权

    公开(公告)号:US10349508B2

    公开(公告)日:2019-07-09

    申请号:US15888111

    申请日:2018-02-05

    申请人: Gigaphoton Inc.

    IPC分类号: H05G2/00

    摘要: A target storage device may include a tank configured to store a target that generates extreme ultraviolet light when being irradiated with laser light, a heater connected with the tank and configured to heat the tank, and a radiation member disposed to cover at least a part of the tank connected with the heater and configured to reflect heat radiation from the tank and the heater toward the tank.

    Chamber device, target generation method, and extreme ultraviolet light generation system

    公开(公告)号:US10028365B2

    公开(公告)日:2018-07-17

    申请号:US15697954

    申请日:2017-09-07

    申请人: Gigaphoton Inc.

    IPC分类号: H05G2/00 G03F7/20

    摘要: A chamber device may include a chamber, and a target generation device assembled into the chamber and configured to supply a target material into the chamber, the target generation device including a tank configured to store the target material, a temperature variable device configured to vary temperature of the target material in the tank, and a nozzle section in which a nozzle hole configured to output the target material in a liquid form is formed, and the chamber device may further include a gas nozzle having an inlet port facing the nozzle section and configured to introduce gas into the chamber, a gas supply source configured to supply gas containing hydrogen to the gas nozzle to supply the gas containing the hydrogen to at least periphery of the nozzle section, and a moisture remover configured to remove moisture at least in the periphery of the nozzle section in the chamber.

    Target material refinement device and target supply apparatus
    7.
    发明授权
    Target material refinement device and target supply apparatus 有权
    目标材料细化装置和目标供应装置

    公开(公告)号:US09039957B2

    公开(公告)日:2015-05-26

    申请号:US13770939

    申请日:2013-02-19

    申请人: Gigaphoton Inc.

    IPC分类号: C22B9/00 H05G2/00

    摘要: A target material refinement device may include a refinement tank to accommodate a target material, a heating section to heat the interior of the refinement tank, and an oxygen-atom removing section to remove oxygen atoms present in the target material.

    摘要翻译: 目标材料细化装置可以包括用于容纳目标材料的精制罐,用于加热精制罐内部的加热部分和氧原子去除部分以除去存在于目标材料中的氧原子。

    Target supply device, extreme ultraviolet light generating apparatus, and electronic device manufacturing method

    公开(公告)号:US11360391B2

    公开(公告)日:2022-06-14

    申请号:US16925567

    申请日:2020-07-10

    申请人: Gigaphoton Inc.

    IPC分类号: G03F7/20 H05G2/00

    摘要: A target supply device includes a tank body portion holding a target substance; a communication portion connected to the tank body portion and including a filter that filters the melted target substance and a nozzle that discharges the target substance having passed through the filter; a main heater that heats the tank body portion; a sub-heater that heats the communication portion; and a control unit, the control unit being configured to set the main heater to a temperature higher than a melting point of the target substance before the target substance is melted, to set the sub-heater to a temperature lower than the melting point of the target substance until the target substance in the tank body portion is melted, and to set the sub-heater to a temperature higher than the melting point of the target substance after the target substance in the tank body portion is melted.

    EXTREME ULTRAVIOLET LIGHT GENERATION DEVICE AND TARGET SUPPLY DEVICE

    公开(公告)号:US20200209765A1

    公开(公告)日:2020-07-02

    申请号:US16812831

    申请日:2020-03-09

    申请人: Gigaphoton Inc.

    IPC分类号: G03F7/20 H01L41/04 H01L41/09

    摘要: An extreme ultraviolet light generation device includes: a target supply unit including a nozzle through which a target substance in a liquid form is output into a chamber; a piezoelectric element configured to vibrate the nozzle under a droplet connection condition to regularly generate a droplet of the target substance; and a control unit configured to perform search processing of changing a drive condition of the piezoelectric element to search for a drive condition of the piezoelectric element corresponding to the droplet connection condition and configured to set a drive condition of the piezoelectric element used for generation of extreme ultraviolet light based on a result of the search processing. The control unit preliminarily drives the piezoelectric element before performing the search processing and starts the search processing after performing the preliminary drive.

    Target generation device and extreme ultraviolet light generation device

    公开(公告)号:US10372041B2

    公开(公告)日:2019-08-06

    申请号:US16261329

    申请日:2019-01-29

    申请人: Gigaphoton Inc.

    IPC分类号: H05G2/00 G03F7/20

    摘要: A target generation device according to one aspect of the present disclosure includes a tank for containing a target substance, a heater provided at the tank, a nozzle communicating with the inside of the tank, a lid having a gas inlet port communicating with the inside of the tank, and a plurality of shielding plates that are disposed inside the tank and suppress entry of the target substance to the gas inlet port. Each of the shielding plates includes at least one non-shielding region for allowing the gas to pass through. The non-shielding regions of at least two of the shielding plates are arranged at positions in which one of the non-shielding regions of the at least two of the shielding plates is not seen into the other of the non-shielding regions of the at least two of the shielding plates.