H05K2203/124

Three-dimensional wiring board production method, three-dimensional wiring board, and substrate for three-dimensional wiring board
10244624 · 2019-03-26 · ·

A three-dimensional wiring board production method is provided that includes: a preparation step of preparing a resin film having a breaking elongation of 50% or more; a first metal film formation step of forming a first metal film on a surface of the resin film; a pattern formation step of performing patterning on the first metal film to form a desired pattern; a three-dimensional molding step of performing three-dimensional molding by heating and pressurizing the resin film; and a second metal film formation step of forming a second metal film on the first metal film having a pattern formed thereon. In the first metal film formation step, metal is deposited in a particle state to form the first metal film in a porous state.

COPPER OR COPPER ALLOY ARTICLE COMPRISING SURFACE-MODIFIED POLYESTER-BASED RESIN AND MANUFACTURING METHOD

Disclosed is a copper alloy article including: a substrate 10 made of a copper alloy; a polyester-based resin body 40; and a compound layer 20 for bonding the substrate 10 and the polyester-based resin body 40, wherein the compound layer 20 contains; a compound having a nitrogen-containing functional group and a silanol group, and an alkane type amine-based silane coupling agent.

Water-based organic solderability preservative, and electronic board and surface treatment method using the same
10149395 · 2018-12-04 · ·

A water-based organic solderability preservative includes (A) an imidazole compound, (B) an organic acid, (C) a complex coating formation aid, (D) an organic solvent and (E) water. The component (D) (organic solvent) has a solubility to water of 10 g/100 g or more at 20 degrees C. and a boiling temperature in a range from 100 degrees C. to 300 degrees C.

Conductive film, conductive film manufacturing method, and touch panel
10108304 · 2018-10-23 · ·

An object of the invention is to provide a conductive film that can prevent an operation error caused by ion migration and is suitable for, for example, a projected capacitive touch panel, a method for manufacturing the conductive film, and a touch panel using the conductive film. In the conductive film, a resin layer is laminated on a surface of a substrate. A mesh-shaped groove portion is formed in a surface of the resin layer. A thin metal wire is provided in the groove portion to form an electrode pattern. When a value indicating ion migration characteristics of the electrode pattern in a longitudinal direction is ML and a value indicating ion migration characteristics of the electrode pattern in a lateral direction is MS, a migration ratio obtained by dividing the larger of the two values ML and MS by the smaller value is in the range of 1.0 to 1.4.

THREE-DIMENSIONAL WIRING BOARD PRODUCTION METHOD, THREE-DIMENSIONAL WIRING BOARD, AND SUBSTRATE FOR THREE-DIMENSIONAL WIRING BOARD
20180160528 · 2018-06-07 · ·

A three-dimensional wiring board production method is provided that includes: a preparation step of preparing a resin film having a breaking elongation of 50% or more; a first metal film formation step of forming a first metal film on a surface of the resin film; a pattern formation step of performing patterning on the first metal film to form a desired pattern; a three-dimensional molding step of performing three-dimensional molding by heating and pressurizing the resin film; and a second metal film formation step of forming a second metal film on the first metal film having a pattern formed thereon. In the first metal film formation step, metal is deposited in a particle state to form the first metal film in a porous state.

Cleaning composition and method of manufacturing metal wiring using the same

A cleaning composition includes about 0.01 to about 5 wt % of a chelating agent; about 0.01 to about 0.5 wt % of an organic acid; about 0.01 to about 1.0 wt % of an inorganic acid; about 0.01 to about 5 wt % of an alkali compound; and deionized water.

METHOD FOR FORMING ORGANIC COATING ON COPPER SURFACE
20170183783 · 2017-06-29 ·

A method for selective deposition of an organic solderability preservative coating on a copper surface of an article is disclosed. The method includes two steps of organic coatings by two solutions; the first step contains contacting the copper surface with a first solution including azole compound and the second step contains contacting the copper surface treated by the first solution with a second solution including a specific pyrazine derived compound.

Azole silane compound, surface treatment solution, surface treatment method, and use thereof

Objects are to provide a novel azole silane compound, a synthesis method thereof, and a silane coupling agent containing the azole silane compound as a component, and to provide a surface treatment solution using the azole silane compound, a surface treatment method, and a bonding method of two materials different in the quality of material. The azole silane compound of the present invention is a compound represented by the specific chemical formula (I-1) or (II-1).

SOLUTION AND PROCESS FOR THE PRE-TREATMENT OF COPPER SURFACES USING AN N-ALKOXYLATED ADHESION-PROMOTING COMPOUND

A method for pretreating a copper surface for the subsequent formation of a firmly adhesive bond between the copper surface and a plastic material substrate. The method comprises bringing a copper surface into contact with: a) hydrogen peroxide; b) an acid; c) a nitrogen-containing, five-membered, heterocyclic compound; and d) a lactam, amide, or polyamide, connected at one or more of its nitrogen atoms with at least one residue of formula (I),

##STR00001##

wherein: n is an integer from 1 to 100; R.sub.1 is hydrogen or a hydrocarbon residue with 1 to 6 carbon atoms; R.sub.2 is hydrogen or a hydrocarbon residue with 1 to 6 carbon atoms; and each R.sub.1 and R.sub.2 in a (CHR.sub.1CHR.sub.2O) moiety is selected independently of each R.sub.1 and R.sub.2 in another (CHR.sub.1CHR.sub.2O) moiety.

Process for forming metal film, and product equipped with metal film

The purpose of the present invention is to provide a wiring substrate from which a metal film cannot be detached easily. A process for forming a metal film comprises a step (X) of applying an agent containing a compound () onto the surface of a base and a step (Y) of forming a metal film on the surface of the compound () by a wet-mode plating technique, wherein the compound () is a compound having either an OH group or an OH-generating group, an azide group and a triazine ring per molecule, and the base comprises a polymer.