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    • 92. 发明授权
    • Temperature balancing device of projection objective of lithography machine and method thereof
    • 光刻机投影物镜温度平衡装置及其方法
    • US09291794B2
    • 2016-03-22
    • US13682069
    • 2012-11-20
    • Shanghai Huali Microelectronics Corporation
    • Jun ZhuLijun Chen
    • G02B7/00G02B7/02G03F7/20
    • G02B7/008G02B7/028G03F7/70891
    • The invention provides a temperature balancing device for a projection objective of a lithography machine. The device comprises at least one temperature sensor, at least one heat-absorbing light-transmitting layer and an objective temperature balancing control unit, wherein the temperature sensor is disposed adjacent to the projection objective for sensing the temperature difference of the projection objective in different areas; the heat-absorbing light-transmitting layer is positioned below the projection objective for absorbing radiation energy in the laser beams transmitted from the lithography machine and transmitting the laser beams; and the objective temperature balancing control unit is used for controlling the absorption degree and light transmission degree of the heat-absorbing light-transmitting layer according to the temperature difference sensed by the temperature sensor. The invention also discloses a method for balancing temperature of a projection objective of a lithography machine.
    • 本发明提供了一种用于光刻机的投影物镜的温度平衡装置。 该装置包括至少一个温度传感器,至少一个吸热透光层和物镜温度平衡控制单元,其中温度传感器邻近投影物镜放置,用于感测不同区域中投影物镜的温差 ; 吸收透光层位于投影物体下方,用于吸收从光刻机传输的激光束中的辐射能量并传输激光束; 并且目标温度平衡控制单元用于根据由温度传感器感测的温度差来控制吸热透光层的吸收度和透光度。 本发明还公开了一种用于平衡光刻机的投影物镜的温度的方法。
    • 93. 发明授权
    • Method for depositing phosphosilicate glass
    • 磷硅玻璃的沉积方法
    • US09150963B2
    • 2015-10-06
    • US13728743
    • 2012-12-27
    • SHANGHAI HUALI MICROELECTRONICS CORPORATION
    • Meimei GuDuoyuan HouHuijun ZhangChienWei Chen
    • C23C14/10C23C14/34C23C16/40C23C16/04
    • C23C16/401C23C16/045
    • A method of depositing phosphosilicate glass (PSG) is disclosed. The method includes a first deposition step for depositing a first PSG layer with a sputtering deposition ratio of 0.10 to 0.16, and a second deposition step for depositing a second PSG layer with a sputtering deposition ratio of 0.18 to 0.22 after the first deposition step. The first PSG layer has a thickness smaller than that of the second PSG layer. With such two-step deposition method, flower pattern having a dramatically reduced size can be formed without occurrence of clipping or formation of sidewall voids in the resultant gate patterns. Specifically, the formed flower pattern has a height reduced by about 50% and a thickness reduced by about 30%.
    • 公开了一种沉积磷硅玻璃(PSG)的方法。 该方法包括用于沉积溅射沉积比为0.10至0.16的第一PSG层的第一沉积步骤和用于在第一沉积步骤之后沉积溅射沉积比为0.18至0.22的第二PSG层的第二沉积步骤。 第一PSG层的厚度小于第二PSG层的厚度。 通过这种两步沉积方法,可以形成具有显着减小的尺寸的花纹,而不会在所得到的栅极图案中产生夹持或形成侧壁空隙。 具体地说,形成的花纹图案的高度减小了大约50%,厚度减少了大约30%。
    • 95. 发明授权
    • Dummy wafer structure and method of forming the same
    • 晶片晶圆结构及其形成方法
    • US08822348B2
    • 2014-09-02
    • US13730576
    • 2012-12-28
    • Shanghai Huali Microelectronics Corporation
    • Chuan RenZhi WangHsuSheng Chang
    • H01L21/31H01L21/3205H01L21/02H01L29/06
    • H01L29/0603C23C16/345C23C16/402H01L21/02164H01L21/0217H01L21/022H01L21/02271H01L21/3205H01L21/32055
    • A dummy wafer structure and a method of forming the same are disclosed. The dummy wafer structure includes: a silicon substrate; a silicon nitride layer over the silicon substrate; and a silicon dioxide layer over the silicon nitride layer. The method includes: a first step of forming a silicon nitride layer over a silicon substrate so as to form a silicon-silicon nitride structure; and a second step of forming a silicon dioxide layer over the silicon-silicon nitride structure obtained in the first step so as to form a silicon-silicon nitride-silicon dioxide structure. Dummy wafers with this special structure are able to avoid deposition rate inconsistency in a polysilicon deposition process and are capable of avoiding conventional dummy wafers' adverse effect on deposit layer thicknesses of process wafers and hence providing the process wafers with deposit layers having a high inter-wafer uniformity.
    • 公开了一种虚设晶片结构及其形成方法。 虚设晶片结构包括:硅衬底; 硅衬底上的氮化硅层; 以及氮化硅层上的二氧化硅层。 该方法包括:在硅衬底上形成氮化硅层以形成硅 - 氮化硅结构的第一步骤; 以及在第一步骤中获得的硅 - 氮化硅结构上形成二氧化硅层以形成硅 - 氮化硅 - 二氧化硅结构的第二步骤。 具有这种特殊结构的虚拟晶片能够避免多晶硅沉积工艺中的沉积速率不一致,并且能够避免常规的虚设晶片对工艺晶片的沉积层厚度的不利影响,并且因此为工艺晶片提供具有高间隔的沉积层, 晶圆均匀性。
    • 96. 发明授权
    • Method for improving write margins of SRAM cells
    • 提高SRAM单元写入裕度的方法
    • US08822294B2
    • 2014-09-02
    • US13721071
    • 2012-12-20
    • Shanghai Huali Microelectronics Corporation
    • Liujiang Yu
    • H01L21/00H01L27/11H01L21/28H01L27/02
    • H01L21/28H01L27/0207H01L27/1104
    • The present invention provides a method for improving the write margins of the SRAM cells. The method comprises: before etching a polysilicon layer to form the polysilicon gates, performing a pre-implantation process to the polysilicon layer; wherein the polysilicon layer defines SRAM NMOSFETs regions and SRAM PMOSFETs regions; wherein the pre-implantation process comprises pre-implanting the fifth-group elements to the SRAM NMOSFETs regions and the NMOSFETs regions except to the SRAM NMOSFETs regions in the polysilicon layer, and pre-implanting the third-group elements to the PMOSFETs regions excluding the SRAM PMOSFETs regions in the polysilicon layer; wherein the process of pre-implanting the third-group elements comprises forming a pre-implantation photo mask capable of covering the SRAM PMOSFETs regions and using the pre-implantation photo mask to pre-implanting the third-group elements.
    • 本发明提供了一种用于提高SRAM单元的写入裕度的方法。 该方法包括:在蚀刻多晶硅层以形成多晶硅栅极之前,对多晶硅层进行预注入工艺; 其中所述多晶硅层限定SRAM NMOSFET区域和SRAM PMOSFET区域; 其中所述预注入工艺包括将所述第五组元件预先植入所述SRAM NMOSFET区域和除了所述多晶硅层中的所述SRAM NMOSFET区域之外的所述NMOSFET区域,以及将所述第三组元件预先植入所述PMOSFET区域, 多晶硅层中的SRAM PMOSFET区域; 其中预植入第三组元件的过程包括形成能够覆盖SRAM PMOSFET区域并使用预植入光掩模预注入第三组元件的预注入光掩模。
    • 98. 发明授权
    • Phase shift focus monitor reticle, manufacturing method thereof and method for monitoring focus difference
    • 相移焦点监视器掩模版及其制造方法以及监控焦点差异的方法
    • US08722287B2
    • 2014-05-13
    • US13688407
    • 2012-11-29
    • Shanghai Huali Microelectronics Corporation
    • Wenliang LiPeng Wu
    • G03F1/26G03F1/44
    • G03F1/26G03F1/44
    • The invention provides a phase shift focus monitor reticle, a manufacturing method thereof, and a method of monitoring focus difference using the phase shift focus monitor reticle. The phase shift focus monitor reticle comprises a shield comprising a plurality of light-transmitting portions with a certain width; and a glass layer positioned on the shield layer comprising a plurality of openings at the light-transmitting portions; wherein the width of the openings is half of the width of the light-transmitting portions; the depth of the openings is n*λ/(N−1), wherein λ is the wavelength of the lights incident on the phase shift focus monitor reticle in air, N is the refractive index of the glass layer, n is a positive integer. The invention can be applied to thicker photoresist and different process machines.
    • 本发明提供一种相移焦点监视器掩模版及其制造方法,以及使用相移焦点监视器掩模版监视对焦差异的方法。 相移焦点监视器掩模版包括具有一定宽度的多个透光部分的屏蔽件; 以及位于所述屏蔽层上的玻璃层,包括在所述透光部分处的多个开口; 其中所述开口的宽度是所述透光部分的宽度的一半; 开口的深度为n *λ/(N-1),其中λ是入射到空气中的相移焦点监视器掩模版上的光的波长,N是玻璃层的折射率,n是正整数 。 本发明可应用于较厚的光致抗蚀剂和不同的加工机器。
    • 99. 发明申请
    • METHOD OF DETECTING THE CIRCULAR UNIFORMITY OF THE SEMICONDUCTOR CIRCULAR CONTACT HOLES
    • 检测半导体圆形接触孔的圆形均匀性的方法
    • US20140127835A1
    • 2014-05-08
    • US14053750
    • 2013-10-15
    • Shanghai Huali Microelectronics Corporation
    • Kai WANGHungLin CHENYin LONGQiliang NIMingShen KUO
    • H01L21/66
    • H01L22/12H01L2924/0002Y10S257/911Y10S257/912H01L2924/00
    • A method of detecting the circular uniformity of semiconductor circular contact holes. Several detection circuit structures are disposed on the semiconductor wafer: N-type active regions and P-type active regions; silicon dioxide layers separate the N-type active regions from the P-type active regions; the N-type active regions are formed in the P well and the P-type active regions are formed in the N well; polysilicon gates bridge the N-type active regions and the P-type active regions; gate oxide layers insulate the P-type regions and the N-type regions from the polysilicon gates, so that the P-type regions and the N-type regions are independent; the N-type active regions connect with circular contact holes while the P-type active regions and the polysilicon gates connect with oval contact holes; a electron beam scanner detects the circular uniformity of the contact holes. This invention advantageously reflects effectively and comprehensively the circular uniformity of the contact holes.
    • 一种检测半导体圆形接触孔的圆形均匀性的方法。 多个检测电路结构设置在半导体晶片上:N型有源区和P型有源区; 二氧化硅层将N型有源区与P型有源区分开; 在P阱中形成N型有源区,在N阱中形成P型有源区; 多晶硅门桥接N型有源区和P型有源区; 栅极氧化层使P型区域和N型区域与多晶硅栅极绝缘,使得P型区域和N型区域是独立的; N型有源区域与圆形接触孔连接,而P型有源区域和多晶硅栅极与椭圆形接触孔连接; 电子束扫描器检测接触孔的圆形均匀性。 本发明有利地有效地反映了接触孔的圆形均匀性。
    • 100. 发明授权
    • Method of forming connection holes
    • 形成连接孔的方法
    • US08658531B2
    • 2014-02-25
    • US13721070
    • 2012-12-20
    • Shanghai Huali Microelectronics Corporation
    • Yushu YangCheng LiYuwen Chen
    • H01L21/4763
    • H01L21/30604H01L21/31116H01L21/76816
    • The present invention provides a method of forming connection holes. The method utilizes two different gases to perform two etching processes for the interlayer dielectric layer so as to form connection holes. The etching rate of the interlayer dielectric layer in the first etching process using the first etching gas is proportional to the size of the openings which defines the connection hole while the etching rate of the interlayer dielectric layer in the second etching process using the second etching gas is inversely related with size of the openings. According to the present invention, the first etching gas and the second etching gas compensate for each other to eliminate the loading effect, thus the connection holes are formed with almost the same depth. Therefore the damage of the etching stopper layer due to the high etching rate in the larger connection holes can be avoided, which prevents the excessive variation of the connecting resistance and expands the process window.
    • 本发明提供一种形成连接孔的方法。 该方法利用两种不同的气体对层间电介质层进行两次蚀刻处理,形成连接孔。 使用第一蚀刻气体的第一蚀刻工艺中的层间电介质层的蚀刻速率与限定连接孔的开口的尺寸成比例,而在使用第二蚀刻气体的第二蚀刻工艺中的层间电介质层的蚀刻速率 与开口的尺寸成反比。 根据本发明,第一蚀刻气体和第二蚀刻气体彼此补偿以消除负载效应,因此连接孔形成有几乎相同的深度。 因此,可以避免由于较大的连接孔中的高蚀刻速率导致的蚀刻阻挡层的损伤,这防止了连接电阻的过度变化并扩大了工艺窗口。