Abstract:
An assembly 100 and method of making same are provided. The assembly 100 can include a first component 105 including a dielectric region 120 having an exposed surface 122, a conductive pad 134 at the surface 122 defined by a conductive element 132 having at least a portion extending in an oscillating or spiral path along the surface 122, and a an electrically conductive bonding material 140 joined to the conductive pad 134 and bridging an exposed portion 137 of the dielectric surface 122 between adjacent segments 136, 138. The conductive pad 134 can permit electrical interconnection of the first component 105 with a second component 107 having a terminal 108 joined to the pad 134 through the electrically conductive bonding material 140. The path of the conductive element 132 may or may not overlap or cross itself.
Abstract:
The semiconductor device comprises a semiconductor substrate (1) with a main surface (10) and a further main surface (11) opposite the main surface, a TSV (3) penetrating the substrate from the main surface to the further main surface, a metallization (13) of the TSV, an under-bump metallization (5) and a bump contact (6) at least partially covering the TSV at the further main surface. The TSV (3) comprises a cavity (15), which may be filled with a gas or liquid. An opening (15') of the cavity is provided to expose the cavity to the environment.
Abstract:
A method for bonding a first semiconductor substrate to a second semiconductor substrate by direct bonding is described. The substrates are both provided on their contact surfaces with a dielectric layer, followed by a CMP step for reducing the roughness of the dielectric layer. Then a layer of SiCN is deposited onto the dielectric layer, followed by a CMP step which reduces the roughness of the SiCN layer to the order of 1 tenth of a nanometre. Then the substrates are subjected to a pre-bond annealing step and then bonded by direct bonding, possibly preceded by one or more pre- treatments of the contact surfaces, and followed by a post- bond annealing step, at a temperature of less than or equal to 250°C. It has been found that the bond strength is excellent, even at the above named annealing temperatures, which are lower than presently known in the art.
Abstract:
A method of bonding between a first surface (1) provided with at least one copper zone (3), surrounded by a silicon oxide zone (4) and a second surface (1') comprises an operation of treating the first surface (1) with a plasma before the first surface (1) is brought into contact with the second surface (V). The plasma is generated from a gas source containing an agent for nitriding the silicon oxide and an agent for reducing the copper oxide, based on hydrogen. The gas source may comprise an N2/NH3 and/or N2/H2 gas mixture or even an N2O/H2 gas mixture or else ammonia gas, which then acts both as nitriding agent and reducing agent. The plasma obtained from this gas source then necessarily comprises nitrogen and hydrogen, thereby making it possible, in a single operation, to provide a strong bond between the first and second surfaces (1, 1').
Abstract translation:设置有由氧化硅区域(4)包围的至少一个铜区域(3)的第一表面(1)和第二表面(1')之间的接合方法包括处理第一表面(1)的操作, 在第一表面(1)与第二表面(V)接触之前具有等离子体。 基于氢气,从含有用于氮化氧化硅的试剂和用于还原氧化铜的试剂的气体源产生等离子体。 气源可以包括N 2 / NH 3和/或N 2 / H 2气体混合物或甚至N 2 O / H 2气体混合物或氨气,其然后作为氮化剂和还原剂起作用。 从该气体源获得的等离子体必然包含氮和氢,从而在单次操作中可以在第一和第二表面(1,1')之间提供强结合。
Abstract:
Various on-chip capacitors and methods of making the same are disclosed. In one aspect, a method of manufacturing a capacitor is provided that includes forming a first conductor structure on a semiconductor chip and forming a passivation structure on the first conductor structure. An under bump metallization structure is formed on the passivation structure. The under bump metallization structure overlaps at least a portion of the first conductor structure to provide a capacitor.
Abstract:
The semiconductor device comprises a semiconductor substrate (1) with a main surface (10) and a further main surface (11) opposite the main surface, a TSV (3) penetrating the substrate from the main surface to the further main surface, a metallization (13) of the TSV, an under-bump metallization (5) and a bump contact (6) at least partially covering the TSV at the further main surface. The TSV (3) comprises a cavity (15), which may be filled with a gas or liquid. An opening (15') of the cavity is provided to expose the cavity to the environment.