Silicon chip carrier with through-vias using laser assisted chemical vapor deposition of conductor
    9.
    发明申请
    Silicon chip carrier with through-vias using laser assisted chemical vapor deposition of conductor 有权
    具有通孔的硅芯片载体使用激光辅助化学气相沉积导体

    公开(公告)号:US20050082676A1

    公开(公告)日:2005-04-21

    申请号:US10686640

    申请日:2003-10-17

    IPC分类号: H01L21/768 H01L23/48

    摘要: This disclosure teaches a method of filling deep vias or capping deep conducting paste filled vias in silicon or glass substrate using laser assisted chemical vapor deposition of metals. This method uses a continuous wave or pulsed laser to heat the via bottom and the growing metal fill selectively by selecting the laser wavelength such that silicon and/or glass do not absorb the energy of the laser in any appreciable manner to cause deposition in the field. Alternatively holographic mask or an array of micro lenses may be used to focus the laser beams to the vias to fill them with metal. The substrate is moved in a controlled manner in the z-direction away from the laser at about the rate of deposition thus causing the laser heating to be focused on the surface region of the growing metal fill.

    摘要翻译: 该公开内容教导了使用金属的激光辅助化学气相沉积在硅或玻璃基板中填充深通孔或者封装深导电糊填充通孔的方法。 该方法使用连续波或脉冲激光器通过选择激光波长来选择性地加热通孔底部和生长金属填充物,使得硅和/或玻璃不以任何可察觉的方式吸收激光的能量以在场中沉积 。 或者,可以使用全息掩模或微透镜阵列来将激光束聚焦到通孔以用金属填充它们。 以大约的沉积速率,以z方向以受控方式远离激光器移动衬底,从而使激光加热聚焦在生长金属填充物的表面区域上。