摘要:
In a reflow process, a plurality of solder bumps between a first workpiece and a second workpiece is melted. During a solidification stage of the plurality of solder bumps, the plurality of solder bumps is cooled at a first cooling rate. After the solidification stage is finished, the plurality of solder bumps is cooled at a second cooling rate lower than the first cooling rate.
摘要:
A semiconductor device includes at least one first gate dielectric layer over a substrate. A first transition-metal oxycarbide (MCxOy) containing layer is formed over the at least one first gate dielectric layer, wherein the transition-metal (M) has an atomic percentage of about 40 at. % or more. A first gate is formed over the first transition-metal oxycarbide containing layer. At least one first doped region is formed within the substrate and adjacent to a sidewall of the first gate.
摘要:
A semiconductor component formed on a semiconductor substrate is provided. The semiconductor substrate has a first surface and a second surface. The semiconductor substrate includes a plurality of devices on the first surface. A plurality of through silicon vias (TSVs) in the semiconductor substrate extends from the first surface to the second surface. A protection layer overlies the devices on the first surface of the semiconductor substrate. A plurality of active conductive pillars on the protection layer have a first height. Each of the active conductive pillars is electrically connected to at least one of the plurality of devices. A plurality of dummy conductive pillars on the protection layer have a second height. Each of the dummy conductive pillars is electrically isolated from the plurality of devices. The first height and the second height are substantially equal.
摘要:
An integrated circuit structure comprising an air gap and methods for forming the same are provided. The integrated circuit structure includes a conductive line; a self-aligned dielectric layer on a sidewall of the conductive line; an air-gap horizontally adjoining the self-aligned dielectric layer; a low-k dielectric layer horizontally adjoining the air-gap; and a dielectric layer on the air-gap and the low-k dielectric layer.
摘要:
A semiconductor device includes a dielectric layer, a conductive line, a via, and a via recess in the conductive line. The conductive line is underlying the dielectric layer. The via is formed in the dielectric layer and extends into the conductive line to form the via recess in the conductive line. The via recess formed in the conductive line has a depth of at least about 100 angstroms. Via-fill material fills the via recess and at least partially fills the via, such that the via-fill material is electrically connected to the conductive line. The via recess may have a same size or smaller cross-section area than that of the via, for example. Such via structure may be part of a dual damascene structure in an intermetal dielectric structure, for example.
摘要:
A semiconductor device includes a dielectric layer, a conductive line, a via, and a via recess in the conductive line. The conductive line is underlying the dielectric layer. The via is formed in the dielectric layer and extends into the conductive line to form the via recess in the conductive line. The via recess formed in the conductive line has a depth of at least about 100 angstroms. Via-fill material fills the via recess and at least partially fills the via, such that the via-fill material is electrically connected to the conductive line. The via recess may have a same size or smaller cross-section area than that of the via, for example. Such via structure may be part of a dual damascene structure in an intermetal dielectric structure, for example.
摘要:
An interconnect structure utilizing a silicon carbon-containing film as an interlayer between dielectrics. A semiconductor substrate having a conductor thereon is provided, and an insulating layer overlies the semiconductor substrate. The insulating layer has a via hole therein to expose the conductor. A conductive plug, e.g. a tungsten plug, substantially fills the via hole and electrically connects the underlying conductor. A silicon carbon-containing film and a low k dielectric layer overlie the insulating layer and the conductive plug, and have a trench therein exposing the conductive plug. A copper or copper alloy conductor substantially fills the trench.
摘要:
A method for establishing low sheet resistance for the Titanium Salicide process that teaches a C-54 TiSix process by means of an additional vacuum bake. The present invention teaches an additional vacuum bake step prior to pre-metal HF dip during the Si-ion mixing process, an additional vacuum bake step prior to PAI during the PAI process, an additional vacuum bake step prior to pre-metal HF dip during the PAI process.
摘要:
A composite dielectric layer and method of forming the composite dielectric layer for the passivation of exposed copper in a copper damascene structure are described. The composite layer consists of a passivation dielectric layer and an etch stop dielectric layer and is formed over the exposed copper prior to the deposit of an inter-metal or final passivating dielectric layer. Via holes are etched in the inter-metal or final passivating layer and the composite dielectric layer provides an etch stop function as well as passivation for the exposed copper conductor. A thin layer of passivation dielectric, such as silicon nitride, is formed directly over the exposed copper to passivate the copper. A thin layer of etch stop dielectric, such as silicon oxynitride, is then formed over the layer of passivation dielectric. The passivation dielectric is chosen for passivation properties and adhesion between the passivation dielectric and copper. The etch stop layer is chosen for etch stop properties. The composite layer is thinner than would be required if the layer of passivation dielectric also provided the etch stop function so that circuit capacitance is reduced by using the composite layer.
摘要:
In forming a semiconductor device in which an electrically conductive substrate is covered with a dielectric layer by the following steps, form a trench with a trench line on top and a contact hole on the bottom in the dielectric layer with the overall trench reaching down to the substrate. Preclean the trench. Form a tantalum film over the dielectric layer including the trench walls, covering the exposed the substrate surface. Fill grain boundaries of the tantalum film with at least one of tantalum oxide and tantalum nitride forming a filled tantalum film. Form a redeposited tantalum layer above the filled tantalum film. Form a copper seed film above the redeposited tantalum film. Plate the device filling the trench with a plated bulk copper layer on the seed film. Planarize the device to expose the top surface of the dielectric layer, removing surplus portions of the filled tantalum film, the copper seed film, and the bulk copper layer. The filled tantalum film is formed by exposing the tantalum to air under STP atmospheric conditions or by exposure to a nitrous oxide (N2O) gas in a plasma at a temperature of about 400° C.