Method for mounting a chip and chip package
    78.
    发明授权
    Method for mounting a chip and chip package 有权
    安装芯片和芯片封装的方法

    公开(公告)号:US09378986B2

    公开(公告)日:2016-06-28

    申请号:US14511353

    申请日:2014-10-10

    摘要: Provided is a method of mounting a chip. The method includes: forming a bump at one surface of a cavity formed concavely in an inner direction of a substrate; performing a coining process to flatten a surface of the bump; coating a solder material on the bump subjected to the coining process; and bonding a chip and the bump by melting the solder material, wherein an electrode portion or a metal portion is formed on a bottom of the chip. For a metal substrate according to the present invention, wherein a vertical insulating layer is included, since the electrode portion of the chip and the electrode portion of the substrate have to be electrically connected, the metal substrate is bonded to the electrode portion of the chip using the bump additionally formed on the metal substrate, so the heat generated in the chip can be rapidly transferred to the substrate, and the junction temperature of the chip can be decreased, thereby enhancing the light efficiency and the. In addition, cracking due to the difference of thermal expansion coefficient between solder materials can be prevented by sealing the bonding portion of the chip using the solder materials. Further, since oxidation of the bonding portion is prevented by blocking the contact with the outside, the chip packaging process can be performed without an additional process of filling an inert gas into the internal space wherein the chip is mounted.

    摘要翻译: 提供了一种安装芯片的方法。 该方法包括:在衬底的内部方向上凹入地形成的空腔的一个表面上形成凸块; 执行压印工艺以平坦化凸块的表面; 在经过压印加工的凸块上涂覆焊料; 并且通过熔化焊料材料来接合芯片和凸块,其中在芯片的底部上形成电极部分或金属部分。 对于根据本发明的金属基板,其中包括垂直绝缘层,由于芯片的电极部分和基板的电极部分必须电连接,金属基板被接合到芯片的电极部分 使用另外形成在金属基板上的凸块,使得芯片中产生的热量可以快速转移到基板,并且可以降低芯片的结温,从而提高光效率。 此外,通过使用焊料材料密封芯片的接合部分,可以防止由于焊料材料之间的热膨胀系数的差异导致的破裂。 此外,由于通过阻挡与外部的接触来防止接合部的氧化,所以可以进行芯片封装处理,而不需要在安装芯片的内部空间中填充惰性气体的附加处理。