摘要:
A method to form a closed air gap interconnect structure is described. A starting structure made of regions of a permanent support dielectric under the interconnect lines and surrounding interconnect vias with one or more sacrificial dielectrics present in the remaining portions of the interconnect structure, is capped with a dielectric barrier which is perforated using a stencil with a regular array of holes. The sacrificial dielectrics are then extracted through the holes in the dielectric barrier layer such that the interconnect lines are substantially surrounded by air except for the regions of the support dielectric under the lines. The holes in the cap layer are closed off by depositing a second barrier dielectric so that a closed air gap is formed. Several embodiments of this method and the resulting structures are described.
摘要:
A method for making dual pre-doped gate stacks used in semiconductor applications such as complementary metal oxide semiconductor (CMOS) devices and metal oxide semiconductor field effect transistors (MOSFETs) is provided. The method involves providing at least one pre-doped conductive layer, such as poly silicon (poly-Si), on a gate stack and etching by exposing the conductive layer to an etching composition comprising at least one carbon containing gas. The carbon containing gas can be selected from gases having the general formula CxHy, such as, for example, CH4, C2H2, C2H4, and C2H6. The carbon containing gas can further be selected from gases having the general formula CxHyA, wherein a can represent one or more additional substituents selected from O, N, P, S, F, Cl, Br, and I. The processes can result in dual pre-doped gate stacks having essentially vertical sidewalls and further having a width of at least about 3 nm, such as from about 5 nm to about 150 nm.
摘要翻译:提供了在半导体应用中使用诸如互补金属氧化物半导体(CMOS)器件和金属氧化物半导体场效应晶体管(MOSFET)的双预预掺杂栅叠层的方法。 该方法包括在栅叠层上提供至少一个预先掺杂的导电层,例如多晶硅(poly-Si),以及通过将导电层暴露于含有至少一种含碳气体的蚀刻组合物进行蚀刻。 含碳气体可以选自具有通式C x H H y H的气体,例如CH 4,C 3, H 2 H 2,C 2 H 4,和C 2 H 2, 6 SUB>。 含碳气体还可以选自具有通式C x H A A A的气体,其中a可以表示一个或多个选自O,N,P ,S,F,Cl,Br和I.该工艺可以导致具有基本上垂直的侧壁并且还具有至少约3nm,例如约5nm至约150nm的宽度的双预掺杂栅叠层。
摘要:
A double-sided integrated circuit chips, methods of fabricating the double-sided integrated circuit chips and design structures for double-sided integrated circuit chips. The method includes removing the backside silicon from two silicon-on-insulator wafers having devices fabricated therein and bonding them back to back utilizing the buried oxide layers. Contacts are then formed in the upper wafer to devices in the lower wafer and wiring levels are formed on the upper wafer. The lower wafer may include wiring levels. The lower wafer may include landing pads for the contacts. Contacts to the silicon layer of the lower wafer may be silicided.
摘要:
An electronic device and method of packaging an electronic device. The device including: a first substrate, a second substrate and an integrated circuit chip having a first side and an opposite second side, a first set of chip pads on the first side and a second set of chip pads on the second side of the integrated circuit chip, chip pads of the first set of chip pads physically and electrically connected to corresponding substrate pads on the first substrate and chip pads of the second set of chip pads physically and electrically connected to substrate pads of the substrate.
摘要:
Method of operating an apparatus which allows etching different substrate etch areas of a substrate having different pattern densities at essentially the same etch rate. The apparatus includes (a) a chamber; (b) an anode and a cathode in the chamber; and (c) a bias power system coupled to the cathode, wherein the cathode includes multiple cathode segments. The operation method is as follows. A substrate to be etched is placed between the anode and cathode, wherein the substrate includes N substrate etch areas, and the N substrate etch areas are directly above the N cathode segments. N bias powers are determined which when being applied to the N cathode segments during an etching of the substrate, will result in essentially a same etch rate for the N substrate etch areas. Then, the bias power system is used to apply the N bias powers the N cathode segments.
摘要:
A capacitor structure uses an aperture located within a dielectric layer in turn located over a substrate. A pair of conductor interconnection layers embedded within the dielectric layer terminates at a pair of opposite sidewalls of the aperture. A pair of capacitor plates is located upon the pair of opposite sidewalls of the aperture and contacting the pair of conductor interconnection layers, but not filling the aperture. A capacitor dielectric layer is located interposed between the pair of capacitor plates and filling the aperture. The pair of capacitor plates may be formed using an anisotropic unmasked etch followed by a masked trim etch. Alternatively, the pair of capacitor plates may be formed using an unmasked anisotropic etch only, when the pair of opposite sidewalls of the aperture is vertical and separated by a second pair of opposite sidewalls that is outward sloped.
摘要:
Disclosed herein is a multi-layer silicon stack architecture including: one or more processing layers including one or more computing elements; one or more networking layers disposed between the processing layers, the network layer includes one or more networking elements, wherein each computing element includes a plurality of network connections to adjacently disposed networking elements.
摘要:
Interconnect structures possessing an organosilicate glass interlayer dielectric material with minimal stoichiometeric modification and optionally an intact organic adhesion promoter for use in semiconductor devices are provided herein. The interconnect structure is capable of delivering improved device performance, functionality and reliability owing to the reduced effective dielectric constant of the stack compared with that of those conventionally employed because of the use of a sacrificial polymeric material deposited onto the dielectric and optional organic adhesion promoter during the barrier open step done prior to ashing the patterning material. This sacrificial film protects the dielectric and optional organic adhesion promoter from modification/consumption during the subsequent ashing step during which the polymeric film is removed.
摘要:
Structures for aligning wafers and methods for operating the same. The structure includes (a) a first semiconductor wafer including a first capacitive coupling structure, and (b) a second semiconductor wafer including a second capacitive coupling structure. The first and second semiconductor wafers are in direct physical contact with each other via a common surface. If the first and second semiconductor wafers are moved with respect to each other by a first displacement distance of 1 nm in a first direction while the first and second semiconductor wafers are in direct physical contact with each other via the common surface, then a change of at least 10−18 F in capacitance of a first capacitor comprising the first and second capacitive coupling structures results. The first direction is essentially parallel to the common surface.
摘要:
A dual damascene structure and method of fabrication thereof. An insulating layer comprises a first dielectric material and a second dielectric material, the second dielectric material being different from the first dielectric material. First conductive regions having a first pattern are formed in the first dielectric material, and second conductive regions having a second pattern are formed in the second dielectric material, the second pattern being different from the first pattern. One of the first dielectric material and the second dielectric material comprises an organic material, and the other dielectric material comprises an inorganic material. One of the first and second dielectric materials is etchable selective to the other dielectric material. A method of cleaning a semiconductor wafer processing chamber while a wafer remains residing within the chamber is also disclosed.