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    • 1. 发明授权
    • Plasma process utilizing an electrostatic chuck
    • 使用静电卡盘的等离子体工艺
    • US5997962A
    • 1999-12-07
    • US671598
    • 1996-06-28
    • Masahiro OgasawaraRyo NonakaYoshiyuki Kobayashi
    • Masahiro OgasawaraRyo NonakaYoshiyuki Kobayashi
    • B05D3/06H01L21/306H05H1/00
    • B05D3/06H01L21/306H05H1/00
    • A wafer is subjected to a plasma process, using plasma generated while a process gas is fed into a process room, and a plus DC voltage is applied to an electrostatic chuck in order to attract and hold the wafer on the electrostatic chuck by an electrostatic force. A minus DC voltage is applied to the electrostatic chuck while nitrogen gas is fed into the process room in order to cause DC discharge after the processed wafer is separated from the electrostatic chuck and before a next wafer is attracted and held on the electrostatic chuck. By doing so, plus electric charge in the gas is attracted to the electrostatic chuck, so that the surface of the electrostatic chuck is charged with plus electric charge, thereby preventing its attracting function from being deteriorated.
    • 对晶片进行等离子体处理,使用等离子体处理气体进入处理室时产生的等离子体处理,并且向静电卡盘施加正电压以便通过静电力吸引并保持晶片在静电卡盘上。 。 在将处理后的晶片与静电卡盘分离并且在下一个晶片被吸引并保持在静电卡盘之前,将氮气供给到处理室中以便产生DC放电,将负DC电压施加到静电卡盘。 通过这样做,加上气体中的电荷被吸引到静电卡盘,使得静电卡盘的表面被加上电荷,从而防止其吸附功能劣化。
    • 2. 发明授权
    • Temperature control system and temperature control method for substrate mounting table
    • 温度控制系统和基板安装台的温度控制方法
    • US08950469B2
    • 2015-02-10
    • US12902225
    • 2010-10-12
    • Yasuharu SasakiRyo NonakaNobuyuki Nagayama
    • Yasuharu SasakiRyo NonakaNobuyuki Nagayama
    • B31F1/00B44C1/175B29C65/00H01L21/67
    • H01L21/67248H01L21/67109
    • A temperature control system includes a heat transfer medium supply configured to supply a first heat transfer medium of a first temperature into a heat transfer medium path; at least one heat transfer medium storage provided between the heat transfer medium path and the heat transfer medium supply and configured to store a second heat transfer medium of a second temperature higher than the first temperature; a heat transfer medium supply control device provided between the heat transfer medium supply and the heat transfer medium path and between the heat transfer medium storage and the heat transfer medium path and configured to stop a supply of the first heat transfer medium into the heat transfer medium path from the heat transfer medium supply and to supply the second heat transfer medium into the heat transfer medium path from the heat transfer medium storage when a heating unit generates heat.
    • 温度控制系统包括:传热介质供给,其构造成将第一温度的第一传热介质供给到传热介质路径中; 设置在传热介质路径和传热介质之间的至少一个传热介质存储器供应并构造成存储第二温度高于第一温度的第二传热介质; 传热介质供给控制装置,设置在所述传热介质供给与所述传热介质路径之间,以及所述传热介质储存部和所述传热介质路径之间,并且被配置为停止向所述传热介质供给所述第一传热介质 并且当加热单元产生热量时,从传热介质储存器将第二传热介质供应到传热介质路径中。
    • 3. 发明申请
    • MOUNTING TABLE TEMPERATURE CONTROL DEVICE AND SUBSTRATE PROCESSING APPARATUS
    • 安装表温度控制装置和基板处理装置
    • US20140311728A1
    • 2014-10-23
    • US14233247
    • 2012-07-19
    • Ryo Nonaka
    • Ryo Nonaka
    • H01L21/67
    • H01L21/67103H01L21/67098H01L21/67109H01L21/67248
    • A temperature of only a part in a surface of a mounting table can be set to be higher than or lower than a set temperature of an entire surface of the mounting table. A main flow path 320 formed within the mounting table 200 to be arranged over the entire surface thereof; an auxiliary flow path 330 formed within the mounting table to be arranged in a part of the surface thereof; and a temperature control medium circulating unit that supplies and circulates a temperature control medium adjusted to have a set temperature into and through the main flow path, allows the temperature control medium to be branched, and supplies and circulates the branched temperature control medium into and through the auxiliary flow path after adjusting a temperature of the branched temperature control medium to be a temperature higher than or lower than the set temperature are provided.
    • 可以将安装台的表面中的仅一部分的温度设定为高于或低于安装台的整个表面的设定温度。 形成在安装台200的整个表面上的主流路320; 形成在安装台中的辅助流路330,以布置在其表面的一部分中; 以及温度控制介质循环单元,其将调节为具有设定温度的温度控制介质供给并循环通过主流路,允许温度控制介质分支,并将分支温度控制介质供给并循环 提供将分支温度控制介质的温度调节为高于或低于设定温度的温度的辅助流路。
    • 4. 发明授权
    • Temperature control device for target substrate, temperature control method and plasma processing apparatus including same
    • 目标基板用温度控制装置,温度控制方法及包括其的等离子体处理装置
    • US07988062B2
    • 2011-08-02
    • US12261341
    • 2008-10-30
    • Ryo NonakaKoichi Murakami
    • Ryo NonakaKoichi Murakami
    • G05D23/00H01L21/306
    • G05D23/1934
    • A temperature control device for a target substrate includes a mounting table having temperature control members respectively provided in temperature systems to control temperatures of regions of the target substrate to respective predetermined temperature levels; circulation channels through which fluids passing through the temperature control members flow; and heating channels each for flowing therein a heated fluid having a higher temperature compared to the fluids circulating in the circulation channels. The device further includes cooling channels each for flowing therein a cooled fluid having a lower temperature compared to the fluids circulating in the circulation channels; and joining units that join the circulation channels to build the respective temperature control systems, the joining units having flow rate control units that controls flow rate ratios of the fluids supplied from the respective channels to the temperature control members.
    • 目标基板的温度控制装置包括:安装台,其具有温度控制部件,温度控制部件分别设置在温度系统中,以将目标基板的区域的温度控制到各自的预定温度水平; 流过温度控制构件的流体流过的循环通道; 并且每个加热通道在其中流动与在循环通道中循环的流体相比具有较高温度的加热流体。 该装置还包括冷却通道,每个用于在其中流动具有与在循环通道中循环的流体相比具有较低温度的冷却流体的冷却通道; 以及接合单元,其连接循环通道以构建各自的温度控制系统,所述接合单元具有流量控制单元,其控制从各个通道供应到温度控制构件的流体的流量比。
    • 6. 发明申请
    • TEMPERATURE CONTROL SYSTEM AND TEMPERATURE CONTROL METHOD FOR SUBSTRATE MOUNTING TABLE
    • 基板安装表温控系统及温度控制方法
    • US20110083837A1
    • 2011-04-14
    • US12902225
    • 2010-10-12
    • Yasuharu SasakiRyo NonakaNobuyuki Nagayama
    • Yasuharu SasakiRyo NonakaNobuyuki Nagayama
    • G05D23/00F28D15/00
    • H01L21/67248H01L21/67109
    • A temperature control system includes a heat transfer medium supply configured to supply a first heat transfer medium of a first temperature into a heat transfer medium path; at least one heat transfer medium storage provided between the heat transfer medium path and the heat transfer medium supply and configured to store a second heat transfer medium of a second temperature higher than the first temperature; a heat transfer medium supply control device provided between the heat transfer medium supply and the heat transfer medium path and between the heat transfer medium storage and the heat transfer medium path and configured to stop a supply of the first heat transfer medium into the heat transfer medium path from the heat transfer medium supply and to supply the second heat transfer medium into the heat transfer medium path from the heat transfer medium storage when a heating unit generates heat.
    • 温度控制系统包括:传热介质供给,其构造成将第一温度的第一传热介质供给到传热介质路径中; 设置在传热介质路径和传热介质之间的至少一个传热介质存储器供应并构造成存储第二温度高于第一温度的第二传热介质; 传热介质供给控制装置,设置在所述传热介质供给与所述传热介质路径之间,以及所述传热介质储存部和所述传热介质路径之间,并且被配置为停止向所述传热介质供给所述第一传热介质 并且当加热单元产生热量时,从传热介质储存器将第二传热介质供应到传热介质路径中。
    • 8. 发明授权
    • Plasma process method using an electrostatic chuck
    • 使用静电卡盘的等离子体工艺方法
    • US5310453A
    • 1994-05-10
    • US17379
    • 1993-02-12
    • Kazuo FukasawaRyo NonakaKousuke Imafuku
    • Kazuo FukasawaRyo NonakaKousuke Imafuku
    • H01L21/00H01L21/683B44C1/22H01L21/02H01L21/306
    • H01L21/67098H01L21/6831H01L21/6833H01J2237/2001H01J2237/334
    • Prior to plasma etching, a wafer is placed on conductive support pins which extend through an electrostatic chuck. The electrostatic chuck is disposed on a susceptor incorporating a cooling jacket. A potential for electrostatic attraction is applied to the electrostatic chuck. The support pins are lowered while they are grounded, thus placing the wafer on the electrostatic chuck. Subsequently, the support pins are retracted into the electrostatic chuck to release contact between the wafer and themselves. A heat medium gas is then supplied between the wafer and the electrostatic chuck to improve the heat transfer rate therebetween. A plasma is then generated in a process chamber, and the wafer is etched by using the plasma. Since the heat transfer rate between the wafer and the electrostatic chuck is improved before the generation of the plasma, damage to the wafer due to heat can be prevented, and the starting time required to start an etching process is shortened.
    • 在等离子体蚀刻之前,将晶片放置在延伸穿过静电卡盘的导电支撑销上。 静电吸盘设置在包含冷却套的基座上。 对静电吸盘施加静电吸引的可能性。 支撑销在接地时降低,从而将晶片放置在静电卡盘上。 随后,支撑销缩回到静电卡盘中,以释放晶片与它们之间的接触。 然后在晶片和静电卡盘之间提供热介质气体,以提高它们之间的传热速率。 然后在处理室中产生等离子体,并且通过使用等离子体来蚀刻晶片。 由于在产生等离子体之前提高了晶片和静电卡盘之间的传热速率,所以可以防止由于热而对晶片造成的损坏,并且缩短了开始蚀刻工艺所需的开始时间。