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    • 3. 发明申请
    • COATED WIRE
    • 涂层电线
    • WO2018048344A1
    • 2018-03-15
    • PCT/SG2017/000008
    • 2017-08-18
    • HERAEUS MATERIALS SINGAPORE PTE., LTD.
    • LIM, Yee WeonZHANG, XiBALASUBRAMANIAN, Senthil KumarTAN, Suat TengLIAO, Jin ZhiSU, DanTOK, Chee WeiSARANGAPANI, MuraliSCHARF, Jurgen
    • C25D5/10C25D7/06H01B1/02B23K35/30B23K35/02C22C5/06
    • A wire comprising a wire core with a surface, the wire core having a coating layer superimposed on its surface, wherein the wire core itself consists of: (a) pure silver consisting of (a1 ) silver in an amount in the range of from 99.99 to 100 wt.-% and (a2) further components in a total amount of from 0 to 100 wt.-ppm or (b) doped silver consisting of (b1 ) silver in an amount in the range of from > 99.49 to 99.997 wt.-%, (b2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to 89.49 to 99.497 wt.-%, (d2) at least one doping element selected from the group consisting of calcium, nickel, platinum, palladium, gold, copper, rhodium and ruthenium in a total amount of from 30 to 200 to 1000 nm thick outer layer of gold.
    • 一种包括具有表面的线芯的线,所述线芯具有叠加在其表面上的涂层,其中所述线芯本身由以下组成:(a)由(a1)银 (a2)总量为0-100重量ppm的其它组分,或(b)由(b1)银以(b1) 范围从> (b2)至少一种选自钙,镍,铂,钯,金,铜,铑和钌的掺杂元素,其总量为30-99.99重量% (b)总量为0-100重量ppm的(b)其他组分,或(c)由(d)含量为89.99-99.5重量%的银 (c2)总量为0.5-10重量%的至少一种选自镍,铂,钯,金,铜,铑和钌的合金元素和(c3) )总量为0-100重量ppm的其它组分,或(d)由(d1)银构成的掺杂银合金,其量在> (d2)至少一种选自钙,镍,铂,钯,金,铜,铑和钌的掺杂元素,其总量为30-90重量% (d3)总量为0.5-10重量%的至少一种选自镍,铂,钯,金,铜,铑和钌的合金元素和 (d4)总量为0-100重量ppm的其他组分,其中所述至少一种掺杂元素(d2)不是所述至少一种合金元素(d3),其中所述单独量的任何其他组分 小于30重量ppm,其中任何掺杂元素的单独量为至少30重量ppm,其中所有重量 - 重量%和重量-ppm的量都基于所述核的总重量,并且 其中所述涂层是由1至1000nm的金内层和相邻的0.5至100nm厚的钯外层或由0.5至100nm厚的钯内层组成的双层组成的双层,和 相邻的> 200至1000纳米厚的外层金。
    • 4. 发明申请
    • PROCESS FOR ELECTRICALLY CONNECTING THE CONTACT SURFACES OF ELECTRONIC COMPONENTS BY A BONDING WIRE HAVING AN ELECTRICALLY INSULATING COATING
    • 使用具有电绝缘涂层的接合线将电子元件的接触表面电连接的方法
    • WO2018026321A1
    • 2018-02-08
    • PCT/SG2017/000007
    • 2017-07-07
    • HERAEUS MATERIALS SINGAPORE PTE., LTD.
    • WEI TOK, CheeSU, DanSARANGAPANI, Murali
    • H01L21/60H01L23/49
    • A process for electrically connecting a contact surface of a first electronic component with a contact surface of a second electronic component comprising the subsequent steps: (1) ball-bonding a bonding wire having a diameter in the range of from 12 to 80 μιτ> to the contact surface of the first electronic component, (2) raising the ball-bonded bonding wire to produce an elongated and narrowed wire region still connected to the bonded ball, (3) disconnecting the ball and the bonding wire at the elongated and narrowed wire region by means of an EFO spark to produce and leave back a ball bump connected to the contact surface of the first electronic component, (4) ball-bonding the bonding wire with its disconnected end formed in step (3) to the contact surface of the second electronic component, (5) forming a wire loop between the ball bond formed in step (4) and the ball bump left back in step (3), and (6) stitch-bonding the bonding wire to the ball bump left back in step (3), wherein the bonding wire comprises a metal core with an outer electrically insulating coating, optionally with at least one thin layer of metal other than the core metal between the metal core surface and the outer electrically insulating coating, and wherein the core metal is selected from the group consisting of copper, silver, gold, a copper-based alloy, a silver-based alloy and a gold-based alloy.
    • 一种用于将第一电子部件的接触表面与第二电子部件的接触表面电连接的方法,其包括以下步骤:(1)将直径在该范围内的接合线球焊接到 从12到80μm> (2)提升球焊接的接合线以产生仍与连接的球连接的细长且变窄的线区域,(3)在伸长和变窄的位置处断开球和接合线 (4)将键合线与其在步骤(3)中形成的其断开的端部球形键合到接触表面(4),其中,所述键合区域通过EFO火花产生并退回连接到第一电子部件的接触表面的球形凸起 (5)在步骤(4)中形成的球接合和在步骤(3)中留下的球凸块之间形成线环,以及(6)将接合线缝合到左侧的球凸起 在步骤(3)中返回,其中接合线包括具有外部电绝缘涂层的金属芯,可选地在金属芯表面和外部电绝缘涂层之间具有除了芯金属之外的至少一个金属薄层,并且其中 核心我 tal选自铜,银,金,铜基合金,银基合金和金基合金。