摘要:
절연 기판에 대한 적층 공정 전에는 캐리어로부터 극박 구리층이 박리되지 않는 한편, 절연 기판에 대한 적층 공정 후에는 박리 가능한 캐리어가 부착된 구리박을 제공한다. 구리박 캐리어와, 구리박 캐리어 상에 적층된 중간층과, 중간층 상에 적층된 극박 구리층을 구비한 캐리어가 부착된 구리박으로서, 중간층은 구리박 캐리어와의 계면에 접하고 있는 Ni 층과 극박 구리층과의 계면에 접하고 있는 Cr 층으로 구성되고, Ni 층에는 1000 ∼ 40000 ㎍/d㎡ 의 Ni 가 존재하고, Cr 층에는 10 ∼ 100 ㎍/d㎡ 의 Cr 이 존재하는 캐리어가 부착된 구리박.
摘要:
PURPOSE: A multi-functional supersaturated slurry plating solution for nickel flash plating is provided to supplement nickel ion and maintain iron components below a predetermined level. CONSTITUTION: A multi-functional supersaturated slurry plating solution for nickel flash plating is prepared by adding alkali salt to a nick flash plating solution. The nickel flash plating solution contains nickel salt, a conductivity assistant, a complexing agent, and a co-deposition agent for supporting the co-deposition of iron ion. The alkali salt is prepared by mixing caustic soda, caustic postash, sodium carbonate, and potassium carbonate at the ratio of 10:2:1:1.
摘要:
PURPOSE: A memory card, a printed circuit board for the memory card, and a manufacturing method thereof are provided to have a new structure to provide required physical properties simultaneously. CONSTITUTION: A memory card and a printed circuit board (PCB) (100) for the memory card comprise an insulating layer (110); a mounting unit (120) which is formed on the insulating layer; a terminal unit (130) which is formed on the lower side of the insulating layer; a protective layer (140) which is formed on the insulating layer; a nickel metal layer (150) which is formed on the upper part of the terminal unit; a palladium metal layer (160) which is formed on the nickel metal layer; and a gold metal layer (170) which is formed on the palladium metal layer. The insulating layer can be a thermosetting polymer substrate, a thermoplastic polymer substrate, a ceramic substrate, an organic-inorganic composite material substrate, or a glass fiber-impregnated substrate. The mounting unit and the terminal unit are composed of an alloy including copper, and can have surface roughness. The nickel metal layer is formed to comprise nickel only or an alloy which composed of Ni, P, B, W, Co; and to have 2-10 um or preferably 5-8 um in thickness. A palladium metal layer is formed by using a palladium plating liquid including palladium (Pd), and can have surface roughness on the surface.
摘要:
The purpose of the present invention is to provide a semiconductor device and a manufacturing method thereof which has a layer having excellent coating quality between a substrate and a metal layer and suppresses that Cu etc which is a component of the metal layer is diffused to the substrate. The manufacturing method of the semiconductor device comprises; a step of attaching a metal catalyst (12a) to the surface of the substrate by dipping the substrate (10) in a liquid including a metal ion; a step of forming an electroless plating layer on the substrate by dipping the substrate in which the metal catalyst is attached in a electroless plating liquid; a step of forming an electroplating layer (16) on the electroless plating layer using the electroless plating layer as a feeding layer by dipping the substrate in an electroplating liquid; and a step of forming a metal layer (18) on the electroplating layer with Cu or Ag. The electroplating layer is formed of a different material with the metal layer.
摘要:
PURPOSE: A memory card, a printed circuit board for the memory card and a manufacturing method thereof are provided to use a new surface processing method, thereby improving the wire bonding property. CONSTITUTION: A mounting unit (120) is formed at a first side of an insulating layer (110). The mounting unit is electrically connected with a memory device. A terminal unit (130) is formed at a second side of the insulating layer. The terminal unit is electrically connected with an external electronic device. The surfaces of the mounting unit and the terminal unit are formed with the same metal layer.