摘要:
A method of forming an improved seal ring structure is described. A continuous metal seal ring is formed along a perimeter of a die wherein the metal seal ring is parallel to the edges of the die and sloped at the corner of the die so as not to have a sharp corner and wherein the metal seal ring has a first width at the corners and a second width along the edges wherein the first width is wider than the second width.
摘要:
A bond pad structure for an integrated circuit chip has a stress-buffering layer between a top interconnection level metal layer and a bond pad layer to prevent damages to the bond pad structure from wafer probing and packaging impacts. The stress-buffering layer is a conductive material having a property selected from the group consisting of Young's modulus, hardness, strength and toughness greater than the top interconnection level metal layer or the bond pad layer. For improving adhesion and bonding strength, the lower portion of the stress-buffering layer may be modified as various forms of a ring, a mesh or interlocking-grid structures embedded in a passivation layer, alternatively, the stress-buffering layer may has openings filled with the bond pad layer.
摘要:
A wafer device is disclosed for improving reliability of circuits fabricated in an active area on a silicon substrate. A seal ring is fabricated around the active area, and a shallow trench isolation is also formed between the seal ring and a scribe line by etching into a portion of the silicon substrate, wherein the seal ring and the shallow trench isolation prevent die saw induced crack from propagating to the active area when the active area is cut along the scribe line.
摘要:
A method of forming an improved seal ring structure is described. A continuous metal seal ring is formed along a perimeter of a die wherein the metal seal ring is parallel to the edges of the die and sloped at the corner of the die so as not to have a sharp corner and wherein the metal seal ring has a first width at the corners and a second width along the edges wherein the first width is wider than the second width.
摘要:
A test pattern (100, 200, 300, 400, 600, 700) has a first metal structure (102) disposed on a substrate (352), one or more intermediate layers (358) disposed above the first metal structure (102) and a second metal structure (104) disposed above the one or more intermediate layers (352). A first via (106) passes through the intermediate layers (352) and connects the first metal structure (102) to the second metal structure (104). One or more third metal structures (108) are disposed above the one or more intermediate layers (352) and the first metal structure (102). One or more second vias (110) pass through the intermediate layers (352) and connect the first metal structure (102) to the third metal structures (108). The second vias (110) are located outside of a radius (R) from a center of the first via (106). The third metal structures (110) are separated from the second metal structure (104) by a dielectric material (366).
摘要:
A structure for a multi-level interconnect inter-level dielectric layer (ILD), a method of manufacturing thereof, and a semiconductor device including the ILD layer. The ILD layer includes a first low-dielectric constant material sub-layer, and a second low-dielectric constant material sub-layer disposed over the first low-dielectric constant material sub-layer. The second low-dielectric constant material sub-layer has at least one different material property than the first low-dielectric constant material sub-layer. A third low-dielectric constant material sub-layer is disposed over the second low-dielectric constant material sub-layer, the third low-dielectric constant material sub-layer having at least one different material property than the second low-dielectric constant material sub-layer. The first, second and third low-dielectric constant materials sub-layers are preferably comprised of the same material, deposited continuously in one or more deposition chambers while the deposition conditions such as the gas flow rate, power, or gas species are adjusted or changed.
摘要:
A method and a pattern for reducing interconnect failures are described. The method and pattern are used for a multilevel structure of metal/dielectric/metal. At least one assistant pattern is attached to one metal layer of the multilevel structure. A thermal stress gradient resulting from the assistant pattern can collect vacancies of the metal layer, so as to prevent stress-induced voids from generating at the bottom of a via plug which connects the two metal layers.
摘要:
An outer border, and a seal ring substantially co-extensive with and spaced from the outer border is disclosed. A plurality of fault detection chains extend from adjacent the outer border to within the seal ring. At least a first one of the plurality of fault detection chains includes a contact pad, a first metal feature coupled to the contact pad by a first via in a passivation layer, a second metal feature coupled to the first metal feature by a second via, and a substrate contact coupled to the second metal feature by a third via.
摘要:
A bond pad structure of an integrated circuit is provided. The bond pad structure includes a conductive bond pad, a first dielectric layer underlying the bond pad, and an Mtop plate located in the first dielectric layer and underlying the bond pad. The Mtop plate is a solid conductive plate and is electrically coupled to the bond pad. The bond pad structure further includes a first passivation layer over the first dielectric layer wherein the first passivation layer has at least a portion under a middle portion of the bond pad. At least part of an active circuit is located under the bond pad.
摘要:
The invention provides a bonding pad structure. At least one lower circuit layer is disposed overlying the substrate, wherein the lower circuit layer is a layout of circuit under pad. A top circuit layer is disposed overlying the lower circuit layer, wherein the top circuit layer comprises a top interconnect dielectric layer and a top interconnect pattern in the top interconnect dielectric layer. A top connecting layer is disposed overlying the top circuit layer, electrically connecting the top interconnect pattern. A top pad layer is disposed overlying the top connecting layer. A bonding ball is disposed overlying the top pad layer, wherein sides of the top interconnect pattern do not overlap a region extending inwardly and outwardly from a boundary of the bonding ball within distance of about 2.5μm.