摘要:
A method for adhering a metal layer and a polymer layer includes forming a metal layer, forming a nanoporous metal structure on the metal layer, and compressing a polymer layer on the nanoporous metal structure such that a polymer is infiltrated into the nanoporous metal structure.
摘要:
There are provided a metal material for electronic component which has low insertability/extractability, low whisker formability, and high durability, and a method for manufacturing the metal material. The metal material 10 for electronic components has a base material 11, an A layer 14 constituting a surface layer on the base material 11 and formed of Sn, In or an alloy thereof, and a B layer 13 constituting a middle layer provided between the base material 11 and the A layer 14 and formed of Ag, Au, Pt, Pd, Ru, Rh, Os, Ir or an alloy thereof, wherein the surface layer (A layer) 14 has a thickness of 0.002 to 0.2 μm, and the middle layer (B layer) 13 has a thickness of 0.001 to 0.3 μm.
摘要:
An electronic device includes an electronic component configured to receive electric current and a plated contact electrically coupled to the electronic component and configured to carry the electric current to the electronic component from a system external to the device. The plated contact includes a copper-alloy layer, a platinum-group metal (PGM) layer plated over the copper-alloy layer, and a gold-alloy layer plated over the PGM layer.
摘要:
A semiconductor package comprises a semiconductor chip having an active surface with a conductive pad thereon; an electroplated Au—Sn alloy bump over the active surface; and a (glass) substrate comprising conductive traces electrically coupling with the electroplated Au—Sn alloy bump, wherein the electroplated Au—Sn alloy bump has a composition from about Au0.85Sn0.15 to about Au0.75Sn0.25 in weight percent uniformly distributed from an end in proximity to the active surface to an end in proximity to the substrate. A method of manufacturing a semiconductor package comprises forming patterns of conductive pads on an active surface of a semiconductor chip; electroplating Au—Sn alloy bump over the conductive pads; and bonding the semiconductor chip on a corresponding conductive trace on a substrate by a reflow operation or a thermal press operation.
摘要:
The invention relates to a method for producing an electric contact element, the base of the contact element being made of a metal substrate which undergoes the following method steps in the listed order: a. a cold and/or hot and/or electrolytic degreasing of the substrate, b. an activation of the surface of the substrate i. in a nickel strike bath or ii. in a fluoride-containing activation solution or iii. in a fluoride-free activation solution, c. a galvanic deposition of an intermediate layer i., wherein a galvanically deposited nickel layer or ii. a nickel alloy layer, or iii. a copper alloy layer is applied as the intermediate layer, and d. an electrolytic deposition of a gold alloy layer in a direct and/or pulse current method in which the current density ranges from 0.3 to 0.6 A/dm2.
摘要:
A gold alloy plating solution and plating method thereof that provides a gold plating solution with high deposition selectivity by using a gold plating solution that contains gold cyanide, cobalt ions, hexamethylene tetramine, and specific glossing agents.
摘要:
Device is a hermetically sealed electronics package bonded to an electrode or flexible circuit that is suitable for implantation such as for a retinal or cortical electrode array. The hermetically sealed electronics package is bonded to the electrode or flexible circuit by electroplating a biocompatible material, such as platinum or gold, forming a plated connection, bonding the flexible circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation. The device comprises a substrate containing a contact, a flexible assembly containing a pad, and electroplated bonding between said contact and said pad that bonds said substrate and said flexible assembly together.
摘要:
A composition includes a solvent; a metal ion disposed in the solvent; an accelerator disposed in the solvent; and a suppressor disposed in the solvent, a pH of the composition being alkaline and effective to form a superconformation comprising a damascene deposit that includes an electrochemically reduced form of the metal ion. A process for forming a superconformation includes: contacting a substrate with a composition, the composition including: a solvent; a metal ion disposed in the solvent; an accelerator disposed in the solvent; and a suppressor disposed in the solvent; controlling a pH of the composition to be alkaline; and producing a damascene deposit on the substrate to form the superconformation, the damascene deposit including an electrochemically reduced form of the metal ion.
摘要:
The invention relates to a method for manufacturing electrical contact elements, wherein the contact element is substantially made from a base body, wherein the base body is subjected to the following method steps in the order listed: a. degreasing the surface, for example by cold degreasing and/or hot degreasing and/or electrolytic degreasing, b. washing in order to remove any present chemical residues, c. activating the surface, d. depositing a nickel layer, e. further washing in order to remove any present chemical residues, f. depositing a nickel layer, g. further washing in order to remove any present chemical residues, h. depositing a gold layer or a gold alloy.
摘要:
A mesoporous neuronal electrode using a surfactant and a method of making the same are disclosed. A mesoporous neuronal electrode according to an exemplary embodiment includes a first metal nanoparticle, a second metal nanoparticle or both of the first and second metal nanoparticles on a surface of the electrode.