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公开(公告)号:US06841878B1
公开(公告)日:2005-01-11
申请号:US10672895
申请日:2003-09-26
IPC分类号: H01L21/3205 , H01L21/768 , H01L23/48
CPC分类号: H01L21/32051 , H01L21/76829 , H01L21/76837 , H01L21/76838
摘要: In one embodiment, a passivation level includes a low-k dielectric. The low-k dielectric helps lower the capacitance of a metal line in a last metal level, which may be just below the passivation level. In another embodiment, the metal line is relatively thick. This helps lower the metal line's resistance and resulting RC delay.
摘要翻译: 在一个实施例中,钝化层包括低k电介质。 低k电介质有助于降低金属线在最后一个金属电平的电容,这可能刚好低于钝化水平。 在另一个实施例中,金属线相对较厚。 这有助于降低金属线的电阻并导致RC延迟。
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公开(公告)号:US07018942B1
公开(公告)日:2006-03-28
申请号:US10988813
申请日:2004-11-15
IPC分类号: H01L21/469
CPC分类号: H01L23/5222 , H01L21/76837 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要: In one embodiment, a passivation level includes a low-k dielectric. The low-k dielectric helps lower the capacitance of a metal line in a last metal level, which may be just below the passivation level. In another embodiment, the metal line is relatively thick. This helps lower the metal line's resistance and resulting RC delay.
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公开(公告)号:US06660661B1
公开(公告)日:2003-12-09
申请号:US10183095
申请日:2002-06-26
IPC分类号: H01L21469
CPC分类号: H01L21/32051 , H01L21/76829 , H01L21/76837 , H01L21/76838
摘要: In one embodiment, a passivation level includes a low-k dielectric. The low-k dielectric helps lower the capacitance of a metal line in a last metal level, which may be just below the passivation level. In another embodiment, the metal line is relatively thick. This helps lower the metal line's resistance and resulting RC delay.
摘要翻译: 在一个实施例中,钝化层包括低k电介质。 低k电介质有助于降低金属线在最后一个金属电平的电容,这可能刚好低于钝化水平。 在另一个实施例中,金属线相对较厚。 这有助于降低金属线的电阻并导致RC延迟。
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4.
公开(公告)号:US07227212B1
公开(公告)日:2007-06-05
申请号:US11021220
申请日:2004-12-23
申请人: Mira Ben-Tzur , Krishnaswamy Ramkumar , James Hunter , Thurman J. Rodgers , Mike Bruner , Klyoko Ikeuchi
发明人: Mira Ben-Tzur , Krishnaswamy Ramkumar , James Hunter , Thurman J. Rodgers , Mike Bruner , Klyoko Ikeuchi
IPC分类号: H01L27/108 , H01L29/76 , H01L29/94 , H01L31/119
CPC分类号: H01L23/5222 , H01L21/7682 , H01L21/76885 , H01L23/5227 , H01L23/53223 , H01L23/53238 , H01L28/87 , H01L2924/0002 , Y10S257/924 , H01L2924/00
摘要: In one embodiment, a sacrificial layer is deposited over a base layer. The sacrificial layer is used to define a subsequently formed floating metal structure. The floating metal structure may be anchored into the base layer. Once the floating metal structure is formed, the sacrificial layer surrounding the floating metal structure is etched to create a unity-k dielectric region separating the floating metal structure from the base layer. The unity-k dielectric region also separates the floating metal structure from another floating metal structure. In one embodiment, a noble gas fluoride such as xenon difluoride is used to etch a sacrificial layer of polycrystalline silicon.
摘要翻译: 在一个实施例中,牺牲层沉积在基底层上。 牺牲层用于限定随后形成的浮动金属结构。 浮动金属结构可以锚定到基层中。 一旦形成了浮动金属结构,则蚀刻围绕浮动金属结构的牺牲层,以产生将浮动金属结构与基底层分开的单位k介电区域。 unity-k电介质区域还将浮动金属结构与另一个浮动金属结构分离。 在一个实施方案中,使用惰性气体氟化物如二氟化氙来蚀刻多晶硅的牺牲层。
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公开(公告)号:US07192867B1
公开(公告)日:2007-03-20
申请号:US10184336
申请日:2002-06-26
IPC分类号: H01L21/302
CPC分类号: H01L21/76831 , H01L21/76814
摘要: In one embodiment, a passivation level includes a low-k dielectric. To prevent the low-k dielectric from absorbing moisture when exposed to air, exposed portions of the low-k dielectric are covered with spacers. As can be appreciated, this facilitates integration of low-k dielectrics in passivation levels. Low-k dielectrics in passivation levels help lower capacitance on metal lines, thereby reducing RC delay and increasing signal propagation speeds.
摘要翻译: 在一个实施例中,钝化层包括低k电介质。 为了防止低k电介质暴露于空气时吸收水分,低k电介质的暴露部分被间隔物覆盖。 可以理解,这有助于低k电介质在钝化层中的集成。 钝化层中的低k电介质有助于降低金属线路上的电容,从而减少RC延迟并增加信号传播速度。
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6.
公开(公告)号:US06835616B1
公开(公告)日:2004-12-28
申请号:US10059823
申请日:2002-01-29
申请人: Mira Ben-Tzur , Krishnaswamy Ramkumar , James Hunter , Thurman J. Rodgers , Mike Bruner , Klyoko Keuchi
发明人: Mira Ben-Tzur , Krishnaswamy Ramkumar , James Hunter , Thurman J. Rodgers , Mike Bruner , Klyoko Keuchi
IPC分类号: H01L218242
CPC分类号: H01L23/5222 , H01L21/7682 , H01L21/76885 , H01L23/5227 , H01L23/53223 , H01L23/53238 , H01L28/87 , H01L2924/0002 , Y10S257/924 , H01L2924/00
摘要: In one embodiment, a sacrificial layer is deposited over a base layer. The sacrificial layer is used to define a subsequently formed floating metal structure. The floating metal structure may be anchored into the base layer. Once the floating metal structure is formed, the sacrificial layer surrounding the floating metal structure is etched to create a unity-k dielectric region separating the floating metal structure from the base layer. The unity-k dielectric region also separates the floating metal structure from another floating metal structure. In one embodiment, a noble gas fluoride such as xenon difluoride is used to etch a sacrificial layer of polycrystalline silicon.
摘要翻译: 在一个实施例中,牺牲层沉积在基底层上。 牺牲层用于限定随后形成的浮动金属结构。 浮动金属结构可以锚定到基层中。 一旦形成了浮动金属结构,则蚀刻围绕浮动金属结构的牺牲层,以产生将浮动金属结构与基底层分开的单位k介电区域。 unity-k电介质区域还将浮动金属结构与另一个浮动金属结构分离。 在一个实施方案中,使用惰性气体氟化物如二氟化氙来蚀刻多晶硅的牺牲层。
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公开(公告)号:US06903002B1
公开(公告)日:2005-06-07
申请号:US10241236
申请日:2002-09-11
IPC分类号: H01L21/302 , H01L21/4763 , H01L21/768
CPC分类号: H01L21/7682
摘要: In one embodiment, a metal level includes a plurality of metal lines. A low-k dielectric is deposited over the metal level such that an air gap forms at least between two metal lines. The relatively low dielectric constant of the low-k dielectric reduces capacitance on metal lines regardless of whether an air gap forms or not. The air gap in the low-k dielectric further reduces capacitance on metal lines. The reduced capacitance translates to lower RC delay and faster signal propagation speeds.
摘要翻译: 在一个实施例中,金属层包括多条金属线。 低k电介质沉积在金属层上,使得气隙至少形成在两条金属线之间。 低k介质的相对较低的介电常数降低金属线上的电容,而不管是否形成气隙。 低k电介质中的气隙进一步降低了金属线路上的电容。 减小的电容转换为较低的RC延迟和更快的信号传播速度。
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公开(公告)号:US06774033B1
公开(公告)日:2004-08-10
申请号:US10287258
申请日:2002-11-04
IPC分类号: H01L214763
CPC分类号: H01L21/32051 , H01L21/76895
摘要: In one embodiment, a local interconnect layer in an integrated circuit is formed by depositing a first film over an oxide layer and depositing a second film over the first film. The first film may comprise titanium nitride, while the second film may comprise tungsten, for example. The first film and the second film may be deposited in-situ by sputtering. The second film may be etched using the first film as an etch stop, and the first film may be etched using the oxide layer as an etch stop.
摘要翻译: 在一个实施例中,通过在氧化物层上沉积第一膜并在第一膜上沉积第二膜来形成集成电路中的局部互连层。 第一膜可以包括氮化钛,而第二膜可以包括例如钨。 第一膜和第二膜可以通过溅射原位沉积。 可以使用第一膜作为蚀刻停止来蚀刻第二膜,并且可以使用氧化物层作为蚀刻停止来蚀刻第一膜。
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公开(公告)号:US07026235B1
公开(公告)日:2006-04-11
申请号:US10072164
申请日:2002-02-07
IPC分类号: H01L21/4763
CPC分类号: H01L21/7682 , H01L21/76807 , H01L23/5222 , H01L23/53238 , H01L23/53295 , H01L2924/0002 , H01L2924/00
摘要: In one embodiment, an interconnect line on one level of an integrated circuit is electrically coupled to another interconnect line on another level. The two layers of interconnects may be coupled together using a via. To reduce capacitance between the interconnect lines, an air core is formed between them. The air core may be formed by using a chemistry that includes a noble gas fluoride to etch a sacrificial layer between the interconnect layers.
摘要翻译: 在一个实施例中,集成电路的一个电平上的互连线电连接到另一个电平上的另一个互连线。 两层互连可以使用通孔耦合在一起。 为了减小互连线之间的电容,在它们之间形成空芯。 空芯可以通过使用包含惰性气体氟化物的化学物质来形成,以蚀刻互连层之间的牺牲层。
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公开(公告)号:US06939792B1
公开(公告)日:2005-09-06
申请号:US10402865
申请日:2003-03-28
申请人: Maryam Jahangiri , Mira Ben-Tzur
发明人: Maryam Jahangiri , Mira Ben-Tzur
IPC分类号: H01L21/3105 , H01L21/316 , H01L21/318 , H01L21/469 , H01L21/768 , H01L23/522
CPC分类号: H01L21/76837 , H01L21/31058 , H01L21/31608 , H01L21/3185 , H01L21/76829 , Y10S438/958
摘要: In one embodiment, a method of fabricating an integrated circuit includes forming a low-k dielectric layer over metal lines, forming an adhesion layer over the low-k dielectric layer, and forming a capping layer over the adhesion layer. The low-k dielectric may comprise SiLK™ dielectric material, while the capping layer may comprise TEOS. The resulting stack of dielectric materials may be employed in a passivation level to protect the metal lines. For example, a topside layer may be formed over the capping layer.
摘要翻译: 在一个实施例中,制造集成电路的方法包括在金属线上形成低k电介质层,在低k电介质层上形成粘合层,并在粘合层上形成覆盖层。 低k电介质可以包括SiLK TM介电材料,而封盖层可以包括TEOS。 所得到的电介质材料叠层可用于钝化层以保护金属线。 例如,可以在覆盖层上形成顶层。
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