摘要:
A method for planarization of a semiconductor wafer with a high selectivity is describe. The semiconductor wafer has a hard mask, a stop layer disposed on the hard mask, and a barrier layer disposed on the stop layer. The method includes performing a chemical mechanical polishing (CMP) process on the barrier layer so as to expose the stop layer, and removing the stop layer. The polishing selectivity of the barrier layer relative to the stop layer is greater than 50. Since the material of stop layer is different from the material of barrier layer, the high selectivity is easily achieved. Thus, the surface of semiconductor wafer can be highly planarized.
摘要:
The present invention related to a CMP equipment, compatible with the existing manufacture processes. The CMP equipment of the present invention employs strip polishing platens that can be smaller than the wafer size, so that the layout is compact and the space is effectively utilized, leading to high throughput and efficient production management. The present invention provides a CMP equipment that offers greater flexibility in performing CMP for different fabrication processes through the choices of various polishing pads and/or polishing slurry.
摘要:
A wafer carrier assembly for a chemical mechanical polishing apparatus and a polishing method using the same are provided. The present wafer carrier assembly comprises a first plate, a second plate and a flexible membrane. The first plate has a plurality of protrusions formed on a bottom surface thereof and the second plate has a plurality of apertures passing through. Each of the protrusions is matched with one of the apertures to enable the first plate and the second plate to detachably combine together. The flexible membrane is positioned under the second plate and contacts it. A surface of the flexible membrane opposite to the surface of the flexible membrane contacting the second plate provides a wafer-receiving surface.
摘要:
A wafer carrier assembly for a chemical mechanical polishing apparatus and a polishing method using the same are provided. The present wafer carrier assembly comprises a first plate, a second plate and a flexible membrane. The first plate has a plurality of protrusions formed on a bottom surface thereof and the second plate has a plurality of apertures passing through. Each of the protrusions is matched with one of the apertures to enable the first plate and the second plate to detachably combine together. The flexible membrane is positioned under the second plate and contacts it. A surface of the flexible membrane opposite to the surface of the flexible membrane contacting the second plate provides a wafer-receiving surface.
摘要:
An interconnect structure includes at least a first interconnect layer and a second interconnect layer. Each of the first and second interconnect layers has a pad structure and each pad structure has a respective pad density. The pad density of the pad structure of the second interconnect layer is different from the pad density of the pad structure of the first interconnect layer. The pad structures of the first and second interconnect layers are connected to each other.
摘要:
In one embodiment, the disclosure relates to a method and apparatus for inserting dummy patterns in sparsely populated portions of a metal layer. The dummy pattern counters the effects of variations of pattern density in a semiconductor layout which can cause uneven post-polish film thickness. An algorithm according to one embodiment of the disclosure determines the size and location of the dummy patterns based on the patterns in the metal layer by first surrounding the metal structure with small dummy pattern and then filling any remaining voids with large dummy patterns.
摘要:
A semiconductor device is disclosed. The device includes a substrate and a first wiring layer overlying the substrate. The first wiring layer comprises a first wiring area surrounded by a first seal ring. The first seal ring comprises a first monitor circuit isolated by a first dielectric layer embedded in the first seal ring. The first monitor circuit is responsive to a predetermined amount of deformation occurs in the third dielectric layer.
摘要:
A semiconductor device is disclosed. The device includes a substrate and a first wiring layer overlying the substrate. The first wiring layer comprises a first wiring area surrounded by a first seal ring. The first seal ring comprises a first monitor circuit isolated by a first dielectric layer embedded in the first seal ring. The first monitor circuit is responsive to a predetermined amount of deformation occurs in the third dielectric layer.
摘要:
A semiconductor device is disclosed. The device includes a substrate and a first wiring layer overlying the substrate. The first wiring layer comprises a first wiring area surrounded by a first seal ring. The first seal ring comprises a first monitor circuit isolated by a first dielectric layer embedded in the first seal ring. The first monitor circuit is responsive to a predetermined amount of deformation occurs in the third dielectric layer.
摘要:
In one embodiment, the disclosure relates to a method and apparatus for inserting dummy patterns in sparsely populated portions of a metal layer. The dummy pattern counters the effects of variations of pattern density in a semiconductor layout which can cause uneven post-polish film thickness. An algorithm according to one embodiment of the disclosure determines the size and location of the dummy patterns based on the patterns in the metal layer by first surrounding the metal structure with small dummy pattern and then filling any remaining voids with large dummy patterns.