CN1954435A - 在包括soi和体硅区域的半导体器件中sti的形成 - Google Patents

在包括soi和体硅区域的半导体器件中sti的形成 Download PDF

Info

Publication number
CN1954435A
CN1954435A CNA2005800153951A CN200580015395A CN1954435A CN 1954435 A CN1954435 A CN 1954435A CN A2005800153951 A CNA2005800153951 A CN A2005800153951A CN 200580015395 A CN200580015395 A CN 200580015395A CN 1954435 A CN1954435 A CN 1954435A
Authority
CN
China
Prior art keywords
silicon
sti
etching
soi
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2005800153951A
Other languages
English (en)
Other versions
CN100452409C (zh
Inventor
M·施泰格瓦尔特
M·库马尔
H·L·霍
D·多布任斯基
J·法尔特迈尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Core Usa Second LLC
GlobalFoundries Inc
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CN1954435A publication Critical patent/CN1954435A/zh
Application granted granted Critical
Publication of CN100452409C publication Critical patent/CN100452409C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/76Making of isolation regions between components
    • H01L21/762Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
    • H01L21/7624Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H01L21/302Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
    • H01L21/306Chemical or electrical treatment, e.g. electrolytic etching
    • H01L21/308Chemical or electrical treatment, e.g. electrolytic etching using masks
    • H01L21/3081Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their composition, e.g. multilayer masks, materials
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/76Making of isolation regions between components
    • H01L21/762Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
    • H01L21/7624Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
    • H01L21/76264SOI together with lateral isolation, e.g. using local oxidation of silicon, or dielectric or polycristalline material refilled trench or air gap isolation regions, e.g. completely isolated semiconductor islands
    • H01L21/76283Lateral isolation by refilling of trenches with dielectric material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H01L21/31Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
    • H01L21/314Inorganic layers
    • H01L21/316Inorganic layers composed of oxides or glassy oxides or oxide based glass
    • H01L21/31604Deposition from a gas or vapour
    • H01L21/31608Deposition of SiO2
    • H01L21/31612Deposition of SiO2 on a silicon body

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Element Separation (AREA)
  • Thin Film Transistor (AREA)

Abstract

本发明公开了在绝缘体上硅(SOI)区域和体硅区域上形成或蚀刻硅沟槽隔离(STI)的方法,以及由此形成的半导体器件。通过利用STI掩模蚀刻到最上硅层,进行定时蚀刻,其在体硅区域中蚀刻到希望深度并且在SOI区域的掩埋绝缘体上停止,并蚀刻穿过SOI区域的掩埋绝缘体,可以在SOI和体硅区域中同时蚀刻STI。用于该方法的掩埋绝缘体蚀刻可以作为硬掩模除去步骤的一部分,以很小的复杂性进行。此外,通过为体和SOI区域选择相同的深度,可以避免后续CMP工艺产生的问题。本发明还清洁了有可能存在氮化硅残留物的SOI和体区域之间的边界。

Description

在包括SOI和体硅区域的 半导体器件中STI的形成
技术领域
本发明通常涉及浅沟槽隔离(STI),更具体的说,涉及在包括绝缘体上硅(SOI)和体硅区域的半导体器件中STI的形成方法。
背景技术
随着科技发展日益复杂,集成电路(IC)用户对更多功能的需求也在增长。为了给IC提供最佳设计,高性能互补金属氧化物半导体(CMOS)器件需要具有附加特征,例如增强型动态随机存取存贮器(eDRAM)或射频(RF)应用。相对于提供所有这些特征出现的难点是每一项特征是在不同条件下达到最优。举例来说,高性能CMOS在绝缘体上硅(SOI)晶片上实现,但是RF和eDRAM则需要在体硅中构造。
为了将“体技术”中的最优和“SOI技术”中的最优合并,常规技术是制造构图SOI(部分体和部分SOI)晶片。采用这种方法的一种技术是在SOI中结合eDRAM。这种情形下,eDRAM阵列块在体硅上构造,逻辑电路在SOI中构造。采用这种方法的另一种技术是在SOI技术中形成65nm。在65nm情况下的衬底由SOI上的Nfet和体硅上的Pfet组成。这种工艺技术在混合取向技术中被认为是“热门”的。
上述提及的两个例子面临的一个难点是,制造者必须既为SOI也为体硅提供有效扩散隔离。提供这种隔离的常规技术需要两种分离浅沟槽工艺:一种针对体硅,另一种针对SOI。而上述工艺是非常复杂和不合算的。特别指出的是,与体硅相比,构图SOI在浅沟槽隔离(STI)工艺中存在大量难点。
第一个难点与STI蚀刻深度有关。对于SOI区域,STI蚀刻深度是硅厚度,蚀刻停止在掩埋绝缘体顶部,深度通常小于1000A。然而对于体工艺,STI深度远远大于当前SOI厚度,举例来说,通常为3500A或者更深。构图SOI时,STI蚀刻深度相对于体硅只有少数选择。第一个选择是采用SOI STI蚀刻深度,这种蚀刻不能在体区域提供充足隔离。第二个选择是采用体STI蚀刻深度,这种蚀刻在SOI区域操作非常困难。第三个选择是SOI区域中的STI蚀刻深度等于在SOI STI工艺中的标准深度,体硅区域深度等于标准体STI深度。然而这种工艺需要额外的光致抗蚀剂层,并且可能在STI平面化上出现问题。
第二个难点存在于构图SOI中的STI工艺,源于采用注氧隔离(SIMOX)工艺制备的晶片内部的特殊工艺缺陷。在构图SIMOX工艺中,氧化物硬掩模岛最初在体晶片上形成,将晶片区域与高剂量、高能量的氧注入屏蔽。在掩埋氧化物(BOX)的形成中,通过高温氧化工序,BOX边缘(即SOI-体边界的BOX)比SOI场区域的BOX变得更厚。在许多情形下,沿着SOI-体区域边界,掩埋氧化物事实上破坏了晶片表面。原因是,氧化物蚀刻需要除去生长在SIMOX晶片上的氧化物,那些被掩埋氧化物破坏表面的区域也会被蚀刻,晶片表面就会遗留下小凹坑。晶片然后经过衬垫氧化和衬垫氮化硅(SiN)沉积。在SiN沉积工艺中,这些凹坑被氮化物填充并且保留在贯穿多数STI工艺的构图晶片上,如果它们在STI蚀刻工艺中没有被蚀刻掉。一旦STI被填充并且平面化,衬垫SiN需要从晶片表面剥离。经过蚀刻后,在表面附近形成并且填充有SiN的凹坑中没有SiN,并且将保留没有材料直到下一个沉积步骤,例如栅极多晶硅。因为多晶硅通过掺杂或者转化为硅化物可以被电激活,那么填充多晶硅的凹坑就会导致器件短路。这个问题在早期SOI eDRAM硬件中已经被发现。因此,构图SIMOX晶片必须结合工艺来完全除去亚表面凹坑中的氮化物残留物。
综上所述,现有技术需要解决相关问题的工艺。
发明内容
本发明包括在绝缘体上硅(SOI)区域和体硅区域中形成或蚀刻硅沟槽隔离(STI)的方法,以及由此形成的半导体器件。通过利用STI掩模蚀刻到最上硅层,进行定时蚀刻,其在体硅区域中蚀刻到希望深度并且在SOI区域的掩埋绝缘体上停止,并蚀刻穿过SOI区域的掩埋绝缘体,可以在SOI和体硅区域中同时蚀刻STI。用于该方法的掩埋绝缘体蚀刻可以作为硬掩模除去步骤的一部分,以很小的复杂性进行。此外,通过为体和SOI区域选择相同的深度,可以避免后续CMP工艺产生的问题。本发明还清洁了有可能存在氮化硅残留物的SOI和体区域之间的边界。
本发明的第一个方面旨在一种在包括绝缘体上硅(SOI)区域和体硅区域的器件中形成硅沟槽隔离(STI)的方法,该方法包括以下步骤:利用STI掩模蚀刻到最上硅层;进行定时蚀刻,其在所述体硅区域中蚀刻到希望深度并且在所述SOI区域的掩埋绝缘体上停止;蚀刻穿过所述SOI区域的掩埋绝缘体;以及沉积STI材料以形成STI。
本发明的第二个方面旨在一种在混合绝缘体上硅(SOI)区域和体硅区域器件中蚀刻硅沟槽隔离(STI)的方法,该方法包括以下步骤:利用STI掩模蚀刻到最上硅层;进行定时蚀刻,其在所述体硅区域中蚀刻到希望深度并且在所述SOI区域的掩埋绝缘体上停止;以及蚀刻穿过所述SOI区域的掩埋绝缘体。
本发明的第三个方面旨在一种包括绝缘体上硅(SOI)区域和体硅区域的半导体器件,该半导体器件包括:硅沟槽隔离(STI),延伸到与所述SOI区域的硅层和掩埋绝缘体的厚度基本上相等的深度。
本发明的第四个方面旨在一种在包括绝缘体上硅(SOI)区域和体硅区域的器件中形成硅沟槽隔离(STI)的方法,该方法包括以下步骤:提供STI掩模;以及在所述SOI区域和所述体硅区域中同时形成所述STI。
通过以下对本发明的实施例的更为详细的描述,本发明的上述和其它特征将显而易见。
附图说明
通过参考下面的附图,将对本发明的实施例进行详细描述,其中同样的标号表示同样的要素,其中:
图1示出了在应用本发明之前的晶片的截面图。
图2-6示出了本发明的形成STI或为STI进行蚀刻的方法的截面图。
图7示出了在应用本发明之后的半导体器件的截面图。
具体实施方式
参考附图,图1示出了在体硅区域14中深沟槽12形成之后,在硅沟槽隔离(STI)硬掩模沉积之前的典型晶片10的截面图。晶片10包括绝缘体上硅(SOI)区域20,其中在掩埋绝缘体24上具有硅层22。晶片10还包括例如氮化硅和二氧化硅的衬垫层30。
在一个实施例中,掩埋绝缘体24材料是二氧化硅,但是也可以采用其它材料。仅为了图解说明,SOI区域20的硅层22的厚度大约为700A,SOI区域20的掩埋绝缘体24的厚度大约为1350A。衬垫层30的厚度包括二氧化硅大约为80A(不按比例显示)和氮化硅大约为1200A。然而,需要指出的是,本发明的教导不限于这些特定深度或者图1最初结构的起始点。
如图2-3显示,提供STI掩模。更具体的说,如图2显示,在衬垫层30顶部沉积硬掩模层40,并且进入所有开口。硬掩模层40材料具有与掩埋绝缘体24基本相同的蚀刻特性。在一个实施例中,硬掩模层40包括大约为1000A的原硅酸四乙酯(TEOS)或者掺硼硅酸盐玻璃(BSG)。接下来如图3显示,构图硬掩模层40,进行蚀刻42以形成STI掩模46。蚀刻42延伸穿过硬掩模层40和至少一个抗反射涂层(ARC)(没有显示)和衬垫层30,在最上硅层50上停止,例如在体硅区域14和SOI区域20的硅层22的最上表面上停止。
接下来的步骤如图4显示,进行定时蚀刻50以在体硅区域14中蚀刻到希望深度(D),在SOI区域20的掩埋绝缘体24的最上表面52上停止。在一个实施例中,在体硅区域14中的希望深度D(以及因此,随后形成的STI)将延伸到至少和SOI区域20的厚度相同的深度,例如至少达到硅层22和掩埋绝缘体24的深度。基于以上描述的深度,举例来说,希望深度大约为2050A,即是硅层22的700A和掩埋绝缘体24的1350A之和。在一个实施例中,定时蚀刻50为反应离子蚀刻工艺,然而也可以采用其它蚀刻工艺。在任何情形下,定时蚀刻50对于掩埋绝缘体24材料例如二氧化硅具有选择性,既蚀刻硅层22,也蚀刻在SOI形成工艺中由于掩埋绝缘体24成为表面在硅层22之下的任何氮化硅。这个步骤同时清洁了有可能存在氮化硅残留物的SOI区域20和体硅区域14之间的边界76。
参考图5,接下来的步骤包括穿过SOI区域20的掩埋绝缘体24进行蚀刻60。在优选实施例中,提供蚀刻60作为硬掩模层40(图3)去除蚀刻的一部分。蚀刻60既蚀刻硬掩模层40,也蚀刻暴露的掩埋绝缘体24材料。然而蚀刻60不能蚀刻任何暴露的硅、多晶硅或氮化硅。也就是说,蚀刻方法对于蚀刻任何暴露的硅、多晶硅和氮化硅是无能力的。
参考图6,接下来的步骤包括沉积STI材料70以形成STI 72。如图6-7显示,最终处理包括进行常规高性能CMOS或DRAM技术抛光(图6)以除去最上表面上的STI材料70,并进行衬垫层30(图6)剥离以形成半导体器件100,如图7显示。半导体器件100包括延伸到与SOI区域20的硅层22和掩埋绝缘体24的厚度基本上相等的深度的STI 72。当希望深度D(图4)基本上等于SOI区域20的硅层22和掩埋绝缘体24的厚度时,STI 72延伸到在SOI区域20和体硅区域14中基本上相等的深度。这个蚀刻深度与仅停止在SOI区域20的硅层22厚度相比,为体硅区域14提供了更多隔离。
尽管与上述详细实施例结合对本发明进行了描述,显然,许多选择、改进和变化对于本领域的技术人员来说是显而易见的。因此,上述本发明的实施例旨在说明,而不是限制。只要不脱离在接下来的权利要求中定义的本发明的精神和范围,可以进行各种改变。

Claims (30)

1.一种在包括绝缘体上硅(SOI)区域和体硅区域的器件中形成硅沟槽隔离(STI)的方法,该方法包括以下步骤:
利用STI掩模蚀刻到最上硅层;
进行定时蚀刻,其在所述体硅区域中蚀刻到希望深度并且在所述SOI区域的掩埋绝缘体上停止;
蚀刻穿过所述SOI区域的掩埋绝缘体;以及
沉积STI材料以形成STI。
2.根据权利要求1的方法,其中在所述体硅区域中的希望深度至少与所述SOI区域的硅层和掩埋绝缘体的厚度相同。
3.根据权利要求1的方法,还包括通过沉积硬掩模层,构图和蚀刻以形成STI掩模来形成STI掩模的步骤。
4.根据权利要求3的方法,其中所述硬掩模层包括原硅酸四乙酯(TEOS)。
5.根据权利要求3的方法,其中所述STI掩模蚀刻步骤包括蚀刻穿过所述硬掩模层和任何抗反射涂层(ARC)和衬垫层中的至少一个。
6.根据权利要求1的方法,其中所述定时蚀刻步骤包括利用对所述掩埋绝缘体材料具有选择性的蚀刻方法。
7.根据权利要求1的方法,其中所述定时蚀刻步骤包括除去所述SOI区域的硅层之下的任何氮化硅。
8.根据权利要求1的方法,其中所述掩埋绝缘体蚀刻步骤包括除去所述STI掩模。
9.根据权利要求1的方法,其中所述掩埋绝缘体蚀刻步骤包括利用不能蚀刻任何暴露的硅、多晶硅和氮化硅的蚀刻方法。
10.根据权利要求1的方法,还包括抛光以除去最上表面上的STI材料并除去衬垫层的步骤。
11.一种在混合绝缘体上硅(SOI)区域和体硅区域器件中蚀刻硅沟槽隔离(STI)的方法,该方法包括以下步骤:
利用STI掩模蚀刻到最上硅层;
进行定时蚀刻,其在所述体硅区域中蚀刻到希望深度并且在所述SOI区域的掩埋绝缘体上停止;以及
蚀刻穿过所述SOI区域的掩埋绝缘体。
12.根据权利要求11的方法,其中在所述体硅区域中的希望深度至少与所述SOI区域的硅层和掩埋绝缘体的厚度相同。
13.根据权利要求11的方法,还包括通过沉积硬掩模层,构图和蚀刻以形成STI掩模来形成STI掩模的步骤。
14.根据权利要求13的方法,其中所述硬掩模层包括原硅酸四乙酯(TEOS)。
15.根据权利要求13的方法,其中所述STI掩模蚀刻步骤包括蚀刻穿过所述硬掩模层和抗反射涂层(ARC)和衬垫层中的至少一个。
16.根据权利要求11的方法,其中所述掩埋绝缘体蚀刻步骤还包括除去所述STI掩模。
17.根据权利要求11的方法,其中所述定时蚀刻步骤包括利用对所述掩埋绝缘体材料具有选择性的蚀刻方法。
18.根据权利要求11的方法,其中所述定时蚀刻步骤包括除去所述SOI区域的硅层之下的任何氮化硅。
19.根据权利要求11的方法,其中所述掩埋绝缘体蚀刻步骤还包括除去一STI掩模。
20.根据权利要求11的方法,其中所述掩埋绝缘体蚀刻步骤包括利用不能蚀刻任何暴露的硅、多晶硅和氮化硅的蚀刻方法。
21.根据权利要求11的方法,还包括抛光以除去最上表面上的STI材料并除去衬垫层的步骤。
22.一种包括绝缘体上硅(SOI)区域和体硅区域的半导体器件,该半导体器件包括:
硅沟槽隔离(STI),延伸到与所述SOI区域的硅层和掩埋绝缘体的厚度基本上相等的深度。
23.根据权利要求22的半导体器件,其中所述STI延伸到在所述SOI区域和所述体硅区域中基本上相等的深度。
24.根据权利要求22的半导体器件,其中所述STI延伸穿过所述SOI区域的硅层和掩埋绝缘体。
25.一种在包括绝缘体上硅(SOI)区域和体硅区域的器件中形成硅沟槽隔离(STI)的方法,该方法包括以下步骤:
提供STI掩模;以及
在所述SOI区域和所述体硅区域中同时形成所述STI。
26.根据权利要求25的方法,其中所述形成步骤包括:
利用STI掩模蚀刻到最上硅层;
进行定时蚀刻,其在所述体硅区域中蚀刻到希望深度并且在所述SOI区域的掩埋绝缘体上停止;
蚀刻穿过所述SOI区域的掩埋绝缘体;以及
沉积STI材料以形成STI。
27.根据权利要求26的方法,其中在所述体硅区域中的希望深度至少与所述SOI区域的硅层和掩埋绝缘体的厚度相同。
28.根据权利要求26的方法,其中所述定时蚀刻步骤包括利用对所述掩埋绝缘体材料具有选择性的蚀刻方法。
29.根据权利要求26的方法,其中所述定时蚀刻步骤除去所述SOI区域的硅层之下的任何氮化硅。
30.根据权利要求1的方法,其中所述掩埋绝缘体蚀刻步骤包括利用不能蚀刻任何暴露的硅、多晶硅和氮化硅的蚀刻方法。
CNB2005800153951A 2004-06-16 2005-06-06 在包括soi和体硅区域的半导体器件中sti的形成 Expired - Fee Related CN100452409C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/710,060 US7118986B2 (en) 2004-06-16 2004-06-16 STI formation in semiconductor device including SOI and bulk silicon regions
US10/710,060 2004-06-16

Publications (2)

Publication Number Publication Date
CN1954435A true CN1954435A (zh) 2007-04-25
CN100452409C CN100452409C (zh) 2009-01-14

Family

ID=35481177

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005800153951A Expired - Fee Related CN100452409C (zh) 2004-06-16 2005-06-06 在包括soi和体硅区域的半导体器件中sti的形成

Country Status (6)

Country Link
US (2) US7118986B2 (zh)
EP (1) EP1782473A4 (zh)
JP (1) JP5004791B2 (zh)
CN (1) CN100452409C (zh)
TW (1) TWI405298B (zh)
WO (1) WO2006009613A2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102956818A (zh) * 2011-08-19 2013-03-06 中芯国际集成电路制造(上海)有限公司 相变存储器的制造方法
CN107946231A (zh) * 2017-11-22 2018-04-20 上海华力微电子有限公司 一种FDSOI器件SOI和bulk区域浅槽形貌优化方法

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090130826A1 (en) * 2004-10-11 2009-05-21 Samsung Electronics Co., Ltd. Method of Forming a Semiconductor Device Having a Strained Silicon Layer on a Silicon-Germanium Layer
US7285480B1 (en) * 2006-04-07 2007-10-23 International Business Machines Corporation Integrated circuit chip with FETs having mixed body thicknesses and method of manufacture thereof
US8159868B2 (en) 2008-08-22 2012-04-17 Zeno Semiconductor, Inc. Semiconductor memory having both volatile and non-volatile functionality including resistance change material and method of operating
US8547756B2 (en) 2010-10-04 2013-10-01 Zeno Semiconductor, Inc. Semiconductor memory device having an electrically floating body transistor
US9601493B2 (en) 2006-11-29 2017-03-21 Zeno Semiconductor, Inc Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
US7760548B2 (en) 2006-11-29 2010-07-20 Yuniarto Widjaja Semiconductor memory having both volatile and non-volatile functionality and method of operating
US8194451B2 (en) 2007-11-29 2012-06-05 Zeno Semiconductor, Inc. Memory cells, memory cell arrays, methods of using and methods of making
US8077536B2 (en) 2008-08-05 2011-12-13 Zeno Semiconductor, Inc. Method of operating semiconductor memory device with floating body transistor using silicon controlled rectifier principle
US9391079B2 (en) 2007-11-29 2016-07-12 Zeno Semiconductor, Inc. Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
US8514622B2 (en) 2007-11-29 2013-08-20 Zeno Semiconductor, Inc. Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
US8053327B2 (en) * 2006-12-21 2011-11-08 Globalfoundries Singapore Pte. Ltd. Method of manufacture of an integrated circuit system with self-aligned isolation structures
CN101246884B (zh) * 2007-02-12 2010-04-21 中芯国际集成电路制造(上海)有限公司 浅沟槽隔离区、浅沟槽隔离区掩膜版及浅沟槽隔离区制造方法
US9230651B2 (en) 2012-04-08 2016-01-05 Zeno Semiconductor, Inc. Memory device having electrically floating body transitor
US7847338B2 (en) * 2007-10-24 2010-12-07 Yuniarto Widjaja Semiconductor memory having both volatile and non-volatile functionality and method of operating
US8174886B2 (en) 2007-11-29 2012-05-08 Zeno Semiconductor, Inc. Semiconductor memory having electrically floating body transistor
US8264875B2 (en) 2010-10-04 2012-09-11 Zeno Semiconducor, Inc. Semiconductor memory device having an electrically floating body transistor
US10403361B2 (en) 2007-11-29 2019-09-03 Zeno Semiconductor, Inc. Memory cells, memory cell arrays, methods of using and methods of making
US8130547B2 (en) 2007-11-29 2012-03-06 Zeno Semiconductor, Inc. Method of maintaining the state of semiconductor memory having electrically floating body transistor
US8130548B2 (en) * 2007-11-29 2012-03-06 Zeno Semiconductor, Inc. Semiconductor memory having electrically floating body transistor
US7871893B2 (en) * 2008-01-28 2011-01-18 International Business Machines Corporation Method for non-selective shallow trench isolation reactive ion etch for patterning hybrid-oriented devices compatible with high-performance highly-integrated logic devices
US8014200B2 (en) 2008-04-08 2011-09-06 Zeno Semiconductor, Inc. Semiconductor memory having volatile and multi-bit, non-volatile functionality and methods of operating
USRE47381E1 (en) 2008-09-03 2019-05-07 Zeno Semiconductor, Inc. Forming semiconductor cells with regions of varying conductivity
WO2010086067A1 (en) * 2009-01-29 2010-08-05 International Business Machines Corporation Memory transistor with a non-planar floating gate and manufacturing method thereof
US11908899B2 (en) 2009-02-20 2024-02-20 Zeno Semiconductor, Inc. MOSFET and memory cell having improved drain current through back bias application
US8039356B2 (en) 2010-01-20 2011-10-18 International Business Machines Corporation Through silicon via lithographic alignment and registration
WO2011097592A1 (en) 2010-02-07 2011-08-11 Zeno Semiconductor , Inc. Semiconductor memory device having electrically floating body transistor, and having both volatile and non-volatile functionality and method
US9922981B2 (en) 2010-03-02 2018-03-20 Zeno Semiconductor, Inc. Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
US10340276B2 (en) 2010-03-02 2019-07-02 Zeno Semiconductor, Inc. Method of maintaining the state of semiconductor memory having electrically floating body transistor
US10461084B2 (en) 2010-03-02 2019-10-29 Zeno Semiconductor, Inc. Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
US8582359B2 (en) 2010-11-16 2013-11-12 Zeno Semiconductor, Inc. Dual-port semiconductor memory and first-in first-out (FIFO) memory having electrically floating body transistor
US8957458B2 (en) 2011-03-24 2015-02-17 Zeno Semiconductor, Inc. Asymmetric semiconductor memory device having electrically floating body transistor
US9025358B2 (en) 2011-10-13 2015-05-05 Zeno Semiconductor Inc Semiconductor memory having both volatile and non-volatile functionality comprising resistive change material and method of operating
US20130187159A1 (en) 2012-01-23 2013-07-25 Infineon Technologies Ag Integrated circuit and method of forming an integrated circuit
JP6362542B2 (ja) 2012-02-16 2018-07-25 ジーノ セミコンダクター, インコーポレイテッド 第1および第2のトランジスタを備えるメモリセルおよび動作の方法
US9208880B2 (en) 2013-01-14 2015-12-08 Zeno Semiconductor, Inc. Content addressable memory device having electrically floating body transistor
US9029922B2 (en) 2013-03-09 2015-05-12 Zeno Semiconductor, Inc. Memory device comprising electrically floating body transistor
US9275723B2 (en) 2013-04-10 2016-03-01 Zeno Semiconductor, Inc. Scalable floating body memory cell for memory compilers and method of using floating body memories with memory compilers
US9368625B2 (en) 2013-05-01 2016-06-14 Zeno Semiconductor, Inc. NAND string utilizing floating body memory cell
US9281022B2 (en) 2013-07-10 2016-03-08 Zeno Semiconductor, Inc. Systems and methods for reducing standby power in floating body memory devices
US9548119B2 (en) 2014-01-15 2017-01-17 Zeno Semiconductor, Inc Memory device comprising an electrically floating body transistor
US9496053B2 (en) 2014-08-15 2016-11-15 Zeno Semiconductor, Inc. Memory device comprising electrically floating body transistor
US10553683B2 (en) 2015-04-29 2020-02-04 Zeno Semiconductor, Inc. MOSFET and memory cell having improved drain current through back bias application
TWI694525B (zh) 2015-04-29 2020-05-21 美商季諾半導體股份有限公司 通過施加回饋偏壓提高漏極電流的金屬氧化物半導體場效應電晶體(mosfet)和存儲單元
US9728640B2 (en) 2015-08-11 2017-08-08 International Business Machines Corporation Hybrid substrate engineering in CMOS finFET integration for mobility improvement
CN107039459A (zh) * 2016-02-03 2017-08-11 上海硅通半导体技术有限公司 Soi和体硅混合晶圆结构及其制备方法
US10079301B2 (en) 2016-11-01 2018-09-18 Zeno Semiconductor, Inc. Memory device comprising an electrically floating body transistor and methods of using
CN108389830B (zh) * 2017-02-03 2020-10-16 联华电子股份有限公司 掩模的制作方法
US11404419B2 (en) 2018-04-18 2022-08-02 Zeno Semiconductor, Inc. Memory device comprising an electrically floating body transistor
US11600663B2 (en) 2019-01-11 2023-03-07 Zeno Semiconductor, Inc. Memory cell and memory array select transistor
CN110416152A (zh) * 2019-07-26 2019-11-05 上海华虹宏力半导体制造有限公司 深槽隔离结构及工艺方法
US11289598B2 (en) 2020-04-15 2022-03-29 Globalfoundries Dresden Module One Limited Liability Company & Co. Kg Co-integrated high voltage (HV) and medium voltage (MV) field effect transistors
US11495660B2 (en) 2020-11-06 2022-11-08 Globalfoundries Dresden Module One Limited Liability Company & Co. Kg Co-integrated high voltage (HV) and medium voltage (MV) field effect transistors with defect prevention structures

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3362397B2 (ja) * 1991-03-28 2003-01-07 ソニー株式会社 ポリッシュによる平坦化工程を含む電子装置の製造方法
US5795810A (en) * 1995-03-29 1998-08-18 Texas Instruments Incorporated Deep mesa isolation in SOI
US5894152A (en) * 1997-06-18 1999-04-13 International Business Machines Corporation SOI/bulk hybrid substrate and method of forming the same
JP4776752B2 (ja) * 2000-04-19 2011-09-21 ルネサスエレクトロニクス株式会社 半導体装置
US6350653B1 (en) * 2000-10-12 2002-02-26 International Business Machines Corporation Embedded DRAM on silicon-on-insulator substrate
US6627484B1 (en) * 2000-11-13 2003-09-30 Advanced Micro Devices, Inc. Method of forming a buried interconnect on a semiconductor on insulator wafer and a device including a buried interconnect
JP4322453B2 (ja) * 2001-09-27 2009-09-02 株式会社東芝 半導体装置およびその製造方法
JP3825688B2 (ja) * 2001-12-25 2006-09-27 株式会社東芝 半導体装置の製造方法
JP2003203967A (ja) * 2001-12-28 2003-07-18 Toshiba Corp 部分soiウェーハの製造方法、半導体装置及びその製造方法
JP2003243528A (ja) * 2002-02-13 2003-08-29 Toshiba Corp 半導体装置
JP3974542B2 (ja) * 2003-03-17 2007-09-12 株式会社東芝 半導体基板の製造方法および半導体装置の製造方法
US6825545B2 (en) * 2003-04-03 2004-11-30 International Business Machines Corporation On chip decap trench capacitor (DTC) for ultra high performance silicon on insulator (SOI) systems microprocessors
JP2005072084A (ja) * 2003-08-28 2005-03-17 Toshiba Corp 半導体装置及びその製造方法
JP2005244020A (ja) * 2004-02-27 2005-09-08 Toshiba Corp 半導体装置及びその製造方法
US7229877B2 (en) * 2004-11-17 2007-06-12 International Business Machines Corporation Trench capacitor with hybrid surface orientation substrate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102956818A (zh) * 2011-08-19 2013-03-06 中芯国际集成电路制造(上海)有限公司 相变存储器的制造方法
CN102956818B (zh) * 2011-08-19 2016-06-29 中芯国际集成电路制造(上海)有限公司 相变存储器的制造方法
CN107946231A (zh) * 2017-11-22 2018-04-20 上海华力微电子有限公司 一种FDSOI器件SOI和bulk区域浅槽形貌优化方法
CN107946231B (zh) * 2017-11-22 2020-06-16 上海华力微电子有限公司 一种FDSOI器件SOI和bulk区域浅槽形貌优化方法

Also Published As

Publication number Publication date
US20050282392A1 (en) 2005-12-22
EP1782473A4 (en) 2010-03-17
WO2006009613A3 (en) 2006-04-13
EP1782473A2 (en) 2007-05-09
JP5004791B2 (ja) 2012-08-22
TW200601489A (en) 2006-01-01
US20060244093A1 (en) 2006-11-02
CN100452409C (zh) 2009-01-14
TWI405298B (zh) 2013-08-11
US7394131B2 (en) 2008-07-01
JP2008503872A (ja) 2008-02-07
WO2006009613A2 (en) 2006-01-26
US7118986B2 (en) 2006-10-10

Similar Documents

Publication Publication Date Title
CN100452409C (zh) 在包括soi和体硅区域的半导体器件中sti的形成
US7807532B2 (en) Method and structure for self aligned formation of a gate polysilicon layer
US7015116B1 (en) Stress-relieved shallow trench isolation (STI) structure and method for forming the same
KR100295929B1 (ko) 트렌치격리부형성및반도체디바이스제조방법
US5989977A (en) Shallow trench isolation process
US6265302B1 (en) Partially recessed shallow trench isolation method for fabricating borderless contacts
US20020076900A1 (en) Method of forming shallow trench isolation layer in semiconductor device
US6821865B2 (en) Deep isolation trenches
US20010006839A1 (en) Method for manufacturing shallow trench isolation in semiconductor device
US6509226B1 (en) Process for protecting array top oxide
US8669152B2 (en) Methods of manufacturing semiconductor devices
CN112103347A (zh) 一种半导体结构的制造方法
JP4244306B2 (ja) 垂直デバイス・セルを有するパターン付きsoi埋め込みdramを製作する方法、及び該方法によって形成された集積回路
KR100355776B1 (ko) 평면 실리콘-온-절연 기판 및 그 형성 방법
US6432827B1 (en) ILD planarization method
US6350659B1 (en) Process of making semiconductor device having regions of insulating material formed in a semiconductor substrate
CN107993978A (zh) 一种半导体器件及其制作方法、电子装置
US20060154435A1 (en) Method of fabricating trench isolation for trench-capacitor dram devices
TWI297525B (en) Method for forming semiconductor shallow trench isolation
US20010045612A1 (en) Method of forming an insulating zone
KR100968305B1 (ko) Soi 및 벌크 실리콘 영역을 포함하는 반도체 장치 내의sti 형성
US20070166952A1 (en) Dual isolation structure of semiconductor device and method of forming the same
US20040253834A1 (en) Method for fabricating a trench isolation structure
TW303521B (en) Field oxide isolating method
US6670691B1 (en) Shallow trench isolation fill process

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20171102

Address after: Grand Cayman, Cayman Islands

Patentee after: GLOBALFOUNDRIES INC.

Address before: American New York

Patentee before: Core USA second LLC

Effective date of registration: 20171102

Address after: American New York

Patentee after: Core USA second LLC

Address before: American New York

Patentee before: International Business Machines Corp.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090114

Termination date: 20190606

CF01 Termination of patent right due to non-payment of annual fee