Electroplating process and composition
    1.
    发明授权
    Electroplating process and composition 失效
    电镀工艺及组成

    公开(公告)号:US6017967A

    公开(公告)日:2000-01-25

    申请号:US626671

    申请日:1996-04-01

    CPC分类号: H05K3/424 C25D5/56

    摘要: The invention relates to a metal sulfide dispersion used for electroplating nonconductors such as substrates used for the formation of a printed circuit board. A printed circuit board made using the dispersion could have metallized through-holes comprising electrodeposited copper on the walls of the holes with an adsorbed layer of metal sulfide particles between the circuit board base material and the copper on the walls of the through-holes. The metal sulfide is characterized by spherical particles having a mean diameter of less than 100 nanometers and a particle size distribution where less than 10 percent of the particles within the dispersion have a diameter twice that of the mean diameter of all particles within the dispersion.

    摘要翻译: 本发明涉及用于电镀非导体(例如用于形成印刷电路板的基板)的金属硫化物分散体。 使用分散体制成的印刷电路板可以在电路板基材和通孔壁上的铜之间,在孔的壁上具有包含电沉积铜的金属化通孔和金属硫化物颗粒的吸附层。 金属硫化物的特征在于平均直径小于100纳米的球形颗粒和分散体内少于10%的颗粒的直径是分散体内所有颗粒的平均直径的两倍的粒度分布。

    Stabilized dispersions of graphite particles
    2.
    发明授权
    Stabilized dispersions of graphite particles 失效
    石墨颗粒的稳定分散体

    公开(公告)号:US5800739A

    公开(公告)日:1998-09-01

    申请号:US626636

    申请日:1996-04-11

    IPC分类号: H01B1/24 H05K3/42 H01B1/04

    CPC分类号: H01B1/24 H05K3/424

    摘要: The invention relates to a conductive dispersions used for diverse purposes such a base for electroplating nonconductors. The dispersion are characterized by use of a stabilizing quantity of a stabilizer having repeating alylkene oxide groups and a hydrophilic-lipophilic balance in excess of 12. It has been found that the stabilizers utilized in the subject compositions does result in a significant loss of conductivity in coatings formed from the dispersion.

    摘要翻译: 本发明涉及用于不同目的的导电分散体,例如用于电镀非导体的基底。 分散体的特征在于使用稳定剂量的具有重复的烯丙基氧基基团和亲水 - 亲油平衡的稳定剂超过12个。已经发现,用于本发明组合物中的稳定剂确实导致显着的导电性损失 由分散体形成的涂层。

    Conductive polymer colloidal compositions with selectivity for non-conductive surfaces
    5.
    发明授权
    Conductive polymer colloidal compositions with selectivity for non-conductive surfaces 有权
    导电聚合物胶体组合物,对非导电表面具有选择性

    公开(公告)号:US06899829B2

    公开(公告)日:2005-05-31

    申请号:US09998117

    申请日:2001-11-30

    CPC分类号: C25D5/54 H05K3/188

    摘要: A conductive polymer colloidal composition that selectively forms a coating on a non-conductive surface. The conductive polymer colloidal composition is composed of a polymer and a sulfonate dopant. The conductive polymer colloidal composition may also contain conductive colloidal particles such as conductive carbon or metal salt particles, oxidants, stabilizers, and preservatives. The conductive polymer colloidal composition may be employed to selectively coat the non-conductive parts of printed wiring boards such that a uniform metal layer can be deposited on the conductive polymer coat. In addition to a uniform metal layer being formed over the conductive polymer, adhesion between the metal layer and the printed wiring board is improved.

    摘要翻译: 导电聚合物胶体组合物,其选择性地在非导电表面上形成涂层。 导电聚合物胶体组合物由聚合物和磺酸盐掺杂剂组成。 导电聚合物胶体组合物还可以含有导电胶体颗粒,例如导电碳或金属盐颗粒,氧化剂,稳定剂和防腐剂。 可以使用导电聚合物胶体组合物来选择性地涂覆印刷线路板的非导电部分,使得可以在导电聚合物涂层上沉积均匀的金属层。 除了在导电聚合物上形成均匀的金属层之外,还提高了金属层和印刷线路板之间的粘附性。