摘要:
The present invention is related to a method for aligning and bonding a first element (1) and a second element (2), comprising: obtaining a first element (1) having at least one protrusion, the protrusion having a base portion (12) made of a first material and an upper portion (13) made of a second, deformable material, different from the first material; obtaining a second element (2) having a first main surface and second main surface (8) and at least one through-hole between the first and second main surface; placing the first and second element onto each other; receiving in the through-hole of the second element (2) the protrusion of the first element (1), the protrusion being arranged and constructed so as to extend from an opening of the through-hole in the first main surface to a position beyond an opening of the through-hole in the second main surface (8); deforming the deformable portion (13) of the protrusion, such that the deformed portion mechanically fixes the second element (2) on the first element (1).
摘要:
A method is disclosed for packaging a device, e.g., for bio-medical applications. In one aspect, the method includes obtaining a component on a substrate and separating the component and a first part of the substrate from a second part of the substrate using at least one physical process inducing at least one sloped side wall on the first part of the substrate. The method also includes providing an encapsulation for the chip. The resulting packaged chip advantageously has a good step coverage resulting in a good hermeticity, less sharp edges resulting in a reduced risk of damaging or infection after implantation and has a relatively small packaged volume compared to conventional big box packaging techniques.
摘要:
Methods for protecting metal surfaces against oxidation are provided. The methods can comprise a plasma treatment, a sintering treatment or a combination of the plasma and sintering treatment. Also provided is a method for bonding a wire on a metal bond pad using the methods for protecting a metal surface.
摘要:
A method is disclosed for packaging a device, e.g., for bio-medical applications. In one aspect, the method includes obtaining a component on a substrate and separating the component and a first part of the substrate from a second part of the substrate using at least one physical process inducing at least one sloped side wall on the first part of the substrate. The method also includes providing an encapsulation for the chip. The resulting packaged chip advantageously has a good step coverage resulting in a good hermeticity, less sharp edges resulting in a reduced risk of damaging or infection after implantation and has a relatively small packaged volume compared to conventional big box packaging techniques.
摘要:
A method for providing an oxide layer on a semiconductor substrate is disclosed. In one aspect, the method includes obtaining a semiconductor substrate. The substrate may have a three-dimensional structure, which may comprise at least one hole. The method may also include forming an oxide layer on the substrate, for example, on the three-dimensional structure, by anodizing the substrate in an acidic electrolyte solution.
摘要:
A method for providing an oxide layer on a semiconductor substrate is disclosed. In one aspect, the method includes obtaining a semiconductor substrate. The substrate may have a three-dimensional structure, which may comprise at least one hole. The method may also include forming an oxide layer on the substrate, for example, on the three-dimensional structure, by anodizing the substrate in an acidic electrolyte solution.
摘要:
A semiconductor package is disclosed. In one aspect, the package includes a base frame and a wiring substrate mounted on the base frame. The base frame has two pieces made of a material with respectively a first and a second coefficient of thermal expansion and connected to each other via resilient connecting structures. The wiring substrate has electric wiring tracks providing the electric connection between first and second bond pads, provided for being electrically connected to bond pads on respectively a die and a printed wiring board. The electrical wiring tracks have flexible parts provided to expand and contract along with the resilient connecting structures.
摘要:
Ultra-low capacitance interconnect structures, preferably Through Silicon Via (TSV) interconnects and methods for fabricating said interconnects are disclosed. The fabrication method comprises the steps of providing a substrate having a first main surface, producing at least one hollow trench-like structure therein from the first main surface, said trench-like structure surrounding an inner pillar structure of substrate material, depositing a dielectric liner which pinches off said hollow trench-like structure at the first main surface such that an airgap is created in the center of hollow trench-like structure and further creating a TSV hole and filling it at least partly with conductive material.
摘要:
A device and a method for realizing reliable electrical contacts at low temperature and low pressure between conducting materials on, for example, different substrates are disclosed. In one aspect, a rough and brittle intermetallic layer is formed on a conducting material on a first substrate. A soft solder material layer on the other substrate is used for contacting the brittle and rough intermetallic layer that will break. As the solder material is relatively soft, contact between the broken intermetallic layer and the solder material can be realized over a large portion of the surface area. At that stage, a second intermetallic layer is formed between the solder material and the first intermetallic layer realizing electrical contact.
摘要:
A device and a method for bonding elements are described. A first solder ball is produced on a main surface of a first element. A second solder ball is produced on a main surface of a second element. Contact is provided between the first solder ball and the second solder ball. The first and second elements are bonded by applying a reflow act whereby the solder balls melt and form a joined solder ball structure. Prior to the bonding, the first solder ball is laterally embedded in a first layer of non-conductive material and the second solder ball is laterally embedded in a second layer of non-conductive material, such that the upper part of the first solder ball and upper part of the second solder ball are not covered by the non-conductive material. A third solder volume is applied on one or both of the embedded first or second solder balls, prior to the bonding.