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    • 1. 发明授权
    • Method for forming an inlaid via in a semiconductor device
    • 在半导体器件中形成镶嵌通孔的方法
    • US6054377A
    • 2000-04-25
    • US858109
    • 1997-05-19
    • Stanley M. FilipiakJohn C. ArnoldPhillip Crabtree
    • Stanley M. FilipiakJohn C. ArnoldPhillip Crabtree
    • H01L21/316H01L21/768H01L21/441
    • H01L21/76807H01L21/31625H01L2221/1031H01L2221/1036
    • A inlaid interconnect is formed in a semiconductor device (30). A first interlayer dielectric (ILD) 40 is deposited and etched to form a via opening (44). An etchstop layer (42) is deposited on ILD (40). A second ILD (45) is deposited on etchstop layer (42) in a manner so that a pinch-off region (46) is formed to prevent substantial deposition of the ILD material into via opening (44). While a small deposit (47) of ILD material may form within the via opening, this can be easily removed in a subsequent etch of ILD (45) which forms a trench opening (48) in ILD (45). A metal layer (50) is then deposited and polished to form a metal interconnect having a trench portion (52) and a via portion (54) in device (30). The present invention avoids the need for a substantial over-etch to clear the via, and avoids the need to form a thick resist mask to form the via opening, while maintaining a controlled via diameter.
    • 嵌入的互连形成在半导体器件(30)中。 沉积和蚀刻第一层间电介质(ILD)40以形成通孔(44)。 蚀刻阻挡层(42)沉积在ILD(40)上。 第二ILD(45)以这样的方式沉积在蚀刻阻挡层(42)上,使得形成夹断区域(46)以防止ILD材料大量沉积到通孔(44)中。 虽然ILD材料的小沉积物(47)可以在通孔开口内形成,但是在ILD(45)中形成沟槽开口(48)的ILD(45)的后续蚀刻中可以容易地去除这种沉积物(47)。 然后沉积和抛光金属层(50)以形成在器件(30)中具有沟槽部分(52)和通孔部分(54)的金属互连。 本发明避免了实质上过度蚀刻以清除通孔的需要,并避免需要形成厚的抗蚀剂掩模以形成通路孔,同时保持受控的通孔直径。
    • 2. 发明申请
    • MANUFACTURING FEATURES OF DIFFERENT DEPTH BY PLACEMENT OF VIAS
    • 通过放置VIAS制造不同深度的特征
    • US20120198403A1
    • 2012-08-02
    • US13018551
    • 2011-02-01
    • John C. ArnoldCatherine Labelle
    • John C. ArnoldCatherine Labelle
    • G06F17/50
    • H01L21/76816H01L21/76808H01L22/12H01L22/20
    • A methodology for varying the depth of a design feature on a semiconductor wafer. Vias are formed according to design requirements. Nonfunctioning vias may also be placed at a location with respect to a design feature. After vias are formed, the semiconductor wafer is caused to undergo an ashing process followed by the application of an organic planarizing layer. The design features are then formed. If the depth of the design features does not meet design requirements, another semiconductor wafer may be processed to meet design requirements by varying the ashing conditions, choice of organic planarizing layer and/or the nonfunctioning and/or functioning via placement. Design features having various depths on a single semiconductor wafer may be formed with a single lithographic process.
    • 用于改变半导体晶片上的设计特征的深度的方法。 通风口根据设计要求形成。 也可以在相对于设计特征的位置放置不起作用的通孔。 在形成通孔之后,使半导体晶片经历灰化处理,随后施加有机平坦化层。 然后形成设计特征。 如果设计特征的深度不符合设计要求,则可以通过改变灰化条件,有机平坦化层的选择和/或无功能和/或功能的通过放置来处理另一半导体晶片以满足设计要求。 在单个半导体晶片上具有各种深度的设计特征可以用单个光刻工艺形成。
    • 9. 发明授权
    • Inductively coupled plasma reactor and process
    • 电感耦合等离子体反应器和工艺
    • US5683548A
    • 1997-11-04
    • US605697
    • 1996-02-22
    • Michael J. HartigJohn C. Arnold
    • Michael J. HartigJohn C. Arnold
    • H05H1/46C23C16/50C23C16/507C23F4/00H01J37/32H01L21/205H01L21/302H01L21/3065H05H1/00
    • H01J37/3244C23C16/507H01J37/321Y10S438/935
    • An inductively coupled plasma reactor and method for processing a semiconductor wafer (28). The inductively coupled plasma reactor (10) includes a plasma source (16) having a plurality of channels (38, 44) in which processing gases are independently supplied to each channel. A gas supply system (20) includes a plurality of gas feed lines (34, 35, 36) each capable of supplying an individual flow rate and gas composition to the plurality of channels (38, 44) in the plasma source (16). Each channel is surrounded by an independently powered RF coil (54, 56), such that the plasma density can be varied within each channel (38, 44) of the plasma source (16). In operation, a material layer (66) overlying a semiconductor wafer (28) is either uniformly etched or deposited by localized spatial control of the plasma characteristics at each location (64) across the semiconductor wafer (28).
    • 一种用于处理半导体晶片(28)的电感耦合等离子体反应器和方法。 电感耦合等离子体反应器(10)包括具有多个通道(38,44)的等离子体源(16),其中处理气体被独立地提供给每个通道。 气体供应系统(20)包括多个气体供给管线(34,35,36),每个气体供给管线能够将等离子体源(16)中的多个通道(38,44)提供单独的流量和气体组成。 每个通道由独立供电的RF线圈(54,56)包围,使得等离子体密度可以在等离子体源(16)的每个通道(38,44)内变化。 在操作中,覆盖半导体晶片(28)的材料层(66)通过半导体晶片(28)上的每个位置(64)处的等离子体特性的局部空间控制被均匀蚀刻或沉积。