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    • 5. 发明公开
    • 무전해 Ni-B 도금액, 전자장치 및 이의 제조방법
    • 电镀Ni-B镀液,电子器件及其制造方法
    • KR1020020041777A
    • 2002-06-03
    • KR1020010074587
    • 2001-11-28
    • 가부시키가이샤 에바라 세이사꾸쇼가부시끼가이샤 도시바
    • 이노우에히로아키나카무라겐지마츠모토모리지에자와히로카즈미야타마사히로츠지무라마나부
    • C23C18/16
    • C23C18/50C23C18/34Y10T428/12576Y10T428/12896Y10T428/12903Y10T428/12944Y10T428/265
    • PURPOSE: An electroless Ni-B plating liquid which can lower the boron content of the resulting plated film without increasing the plating rate and form a Ni-B alloy film having an FCC (face centered cubic) crystalline structure, an electronic device in which the interconnects are protected with the plated film formed by electroless plating carried out by using the plating liquid, and a method for manufacturing the same are provided. CONSTITUTION: The electroless Ni-B plating liquid for forming a Ni-B alloy film on at least part of interconnects of an electronic device having an embedded interconnect structure comprises nickel ions, a completing agent for the nickel ions, a reducing agent for the nickel ions, and ammoniums (NH4¬+), wherein the reducing agent comprises an alkylamine borane or a hydrogen boride compound, the ammoniums are prepared from ammonia water, a pH of the electroless Ni-B plating liquid is adjusted within the range from 8 to 12, and a temperature of the electroless Ni-B plating liquid is adjusted within the range from 50 to 90 deg.C. The electronic device has an embedded interconnect structure of silver, silver alloy, copper or copper alloy, wherein a surface of an interconnect is selectively covered with a protective layer of a Ni-B alloy film, wherein the Ni-B alloy film has an FCC crystalline structure, the Ni-B alloy film has a boron content within the range from 0.01 at % to 10 at %, the Ni-B alloy film is formed by an electroless-plating process with use of an electroless Ni-B plating liquid, the electroless Ni-B plating liquid comprising nickel ions, a complexing agent for the nickel ions, a reducing agent for the nickel ions, and ammoniums (NH4¬+), the Ni-B alloy film has an FCC crystalline structure, and the Ni-B alloy film has a boron content within the range from 0.01 at % to 10 at %. The method for manufacturing an electronic device comprises electroless plating an electronic device having an embedded interconnect structure with an electroless Ni-B plating liquid to form a protective layer of a Ni-B alloy film selectively on a surface of an interconnect of the electronic device, wherein the electroless Ni-B plating liquid comprises nickel ions, a complex agent for nickel ions, a reducing agent for nickel ions, and ammoniums (NH4¬+).
    • 目的:一种无电镀Ni-B电镀液,可以降低所得电镀膜的硼含量,而不增加电镀速率,形成具有FCC(面心立方晶系)晶体结构的Ni-B合金膜,其中, 通过使用电镀液进行无电镀形成的镀膜来保护互连,并且提供其制造方法。 构成:用于在具有嵌入式互连结构的电子器件的互连件的至少一部分互连上形成Ni-B合金膜的无电Ni-B电镀液包括镍离子,用于镍离子的完成剂,用于镍的还原剂 离子和铵(NH 4 +),其中还原剂包括烷基胺硼烷或硼氢化合物,铵由氨水制备,无电镀Ni-B电镀液的pH调节在8至 12,将化学镀Ni-B镀液的温度调节在50〜90℃的范围内。 电子器件具有银,银合金,铜或铜合金的嵌入式互连结构,其中互连表面选择性地覆盖有Ni-B合金膜的保护层,其中Ni-B合金膜具有FCC 晶体结构,Ni-B合金膜的硼含量在0.01at%至10at%的范围内,Ni-B合金膜通过使用无电镀Ni-B电镀液的无电镀法形成, 包含镍离子的非电解Ni-B电镀液,镍离子络合剂,镍离子还原剂和铵(NH4- +),Ni-B合金膜具有FCC晶体结构,Ni -B合金膜的硼含量在0.01原子%至10原子%的范围内。 电子设备的制造方法包括:电化学电镀具有嵌入式互连结构的电化学镀Ni-B电镀液,以在电子器件的互连件的表面上选择性地形成Ni-B合金膜的保护层, 其中所述无电Ni-B电镀液包含镍离子,镍离子络合剂,镍离子还原剂和铵(NH 4+)。