摘要:
An integrated circuit includes a semiconductor substrate, a low-k dielectric layer over the semiconductor substrate, a first opening in the low-k dielectric layer, and a first diffusion barrier layer in the first opening covering the low-k dielectric layer in the first opening, wherein the first diffusion barrier layer has a bottom portion connected to sidewall portions, and wherein the sidewall portions have top surfaces close to a top surface of the low-k dielectric layer. The integrated circuit further includes a conductive line filling the first opening wherein the conductive line has a top surface lower than the top surfaces of the sidewall portions of the diffusion barrier layer, and a metal cap on the conductive line and only within a region directly over the conductive line.
摘要:
An integrated circuit includes a semiconductor substrate, a low-k dielectric layer over the semiconductor substrate, a first opening in the low-k dielectric layer, and a first diffusion barrier layer in the first opening covering the low-k dielectric layer in the first opening, wherein the first diffusion barrier layer has a bottom portion connected to sidewall portions, and wherein the sidewall portions have top surfaces close to a top surface of the low-k dielectric layer. The integrated circuit further includes a conductive line filling the first opening wherein the conductive line has a top surface lower than the top surfaces of the sidewall portions of the diffusion barrier layer, and a metal cap on the conductive line and only within a region directly over the conductive line.
摘要:
An integrated circuit includes a semiconductor substrate, a low-k dielectric layer over the semiconductor substrate, a first opening in the low-k dielectric layer, and a first diffusion barrier layer in the first opening covering the low-k dielectric layer in the first opening, wherein the first diffusion barrier layer has a bottom portion connected to sidewall portions, and wherein the sidewall portions have top surfaces close to a top surface of the low-k dielectric layer. The integrated circuit further includes a conductive line filling the first opening wherein the conductive line has a top surface lower than the top surfaces of the sidewall portions of the diffusion barrier layer, and a metal cap on the conductive line and only within a region directly over the conductive line.
摘要:
An integrated circuit includes a semiconductor substrate, a low-k dielectric layer over the semiconductor substrate, a first opening in the low-k dielectric layer, and a first diffusion barrier layer in the first opening covering the low-k dielectric layer in the first opening, wherein the first diffusion barrier layer has a bottom portion connected to sidewall portions, and wherein the sidewall portions have top surfaces close to a top surface of the low-k dielectric layer. The integrated circuit further includes a conductive line filling the first opening wherein the conductive line has a top surface lower than the top surfaces of the sidewall portions of the diffusion barrier layer, and a metal cap on the conductive line and only within a region directly over the conductive line.
摘要:
A system and method for providing a passivation structure for semiconductor devices is provided. In an embodiment, the passivation structure comprises a first barrier layer and a second barrier layer, wherein the second barrier layer may comprise a material, such as cobalt and/or nickel, that is less pure than the first barrier layer. In another embodiment, a single gradient barrier layer is formed. In this embodiment the single gradient barrier layer exhibits a greater pure conductive material, such as cobalt and/or nickel, nearer the conductive line than near the surface.
摘要:
A semiconductor interconnection structure is manufactured as follows. First, a substrate with a first dielectric layer and a second dielectric layer is formed. Subsequently, an opening is formed in the second dielectric layer. A thin metal layer and a seed layer are formed in sequence on the surface of the second dielectric layer in the opening, wherein the metal layer comprises at least one metal species having phase segregation property of a second conductor. The wafer of the substrate is subjected to a thermal treatment, by which most of the metal species in the metal layer at a bottom of the opening is diffused to a top surface of the second conductor to form a metal-based oxide layer. Afterwards, the wafer is subjected to planarization, so as to remove the second conductor outside the opening.
摘要:
The structures and methods described above provide mechanisms to improve interconnect reliability and resistivity. The interconnect reliability and resistivity are improved by using a composite barrier layer, which provides good step coverage, good copper diffusion barrier, and good adhesion with adjacent layers. The composite barrier layer includes an ALD barrier layer to provide good step coverage. The composite barrier layer also includes a barrier-adhesion-enhancing film, which contains at least an element or compound that contains Mn, Cr, V, Ti, or Nb to improve adhesion. The composite barrier layer may also include a Ta or Ti layer between the ALD barrier layer and the barrier-adhesion-enhancing layer.
摘要:
A method of forming an integrated circuit includes providing a semiconductor substrate, forming a metallization layer over the semiconductor substrate, wherein the metallization layer comprises a metal feature in a low-k dielectric layer and extending from a top surface of the low-k dielectric layer into the low-k dielectric layer, performing a treatment to the low-k dielectric layer to form a hydrophilic top surface, and plating a cap layer on the metal feature in a solution.
摘要:
An interconnection structure for integrated circuits having reduced RC delay and leakage is provided. The interconnection structure includes a first conductive line in a first dielectric layer, a second dielectric layer over the first dielectric layer and the first conductive line, and a dual damascene structure in the second dielectric layer. The dual damascene structure includes a second conductive line and a via between and adjoining the first and the second conductive lines, wherein the second conductive line comprises a first portion directly over and adjoining the via, and a second portion having no underlying and adjoining vias. The second portion has a second width less than a first width of the first portion.
摘要:
An apparatus includes an enclosure and a door configured to seal the enclosure. The door includes a plate. A rotational apparatus is disposed over the plate. At least one first member with a first arm extends from a first rib of the first member. At least one second member with a second arm extends from a second rib of the second member. The first and second arms are connected to the rotational apparatus. At least one corner member has a first edge. The first edge has a shape corresponding to a shape of a corner of the frame. The corner member is connected to a first end of the third arm. A second end of the third arm is connected to the rotational apparatus. A sealing material is disposed along a first longitudinal side of the first rib and a second longitudinal side of the second rib.