Stacked package structure and fabrication method thereof
    1.
    发明申请
    Stacked package structure and fabrication method thereof 审中-公开
    堆叠封装结构及其制造方法

    公开(公告)号:US20080283994A1

    公开(公告)日:2008-11-20

    申请号:US12152687

    申请日:2008-05-16

    IPC分类号: H01L23/49 H01L21/56

    摘要: A stacked package structure and fabrication method thereof are disclosed, including providing a substrate having a plurality of stackable solder pads formed on surface thereof for allowing at least one semiconductor chip to be electrically connected to the substrate; forming an encapsulant for encapsulating the semiconductor chip and further exposing the stackable solder pads from the encapsulant, thus forming a lower-layer semiconductor package; forming conductive bumps on at least one stackable solder pad by means of wire bonding such that at least one upper-layer semiconductor package can be mounted via solder balls on the conductive bumps and the stackable solder pads of the lower-layer semiconductor package to form a stacked package structure, wherein, stacking height of the solder balls and the conductive bumps is greater than height of the encapsulant of the lower-layer semiconductor package, thus, when stacking fine pitch semiconductor packages or when warps occur to the upper-layer semiconductor package or the lower-layer semiconductor package, the conductive bumps can compensate for inadequate height caused by solder ball collapse or fill up gaps between the solder balls and the stackable solder pads caused by warps, thereby allowing the solder balls to be able to effectively contact and wet on the substrate of the lower-layer semiconductor package.

    摘要翻译: 公开了一种堆叠封装结构及其制造方法,包括提供一种具有形成在其表面上的多个可叠置焊料焊盘的衬底,用于允许至少一个半导体芯片电连接到衬底; 形成用于封装半导体芯片的密封剂,并进一步从可密封剂暴露可堆叠的焊盘,从而形成下层半导体封装; 通过引线接合在至少一个可堆叠的焊盘上形成导电凸块,使得至少一个上层半导体封装可以经由焊球安装在导电凸块和下层半导体封装的可堆叠焊盘上,以形成 堆叠的封装结构,其中,焊球和导电凸块的堆叠高度大于下层半导体封装的密封剂的高度,因此,当堆叠精细间距半导体封装时或当上行半导体封装发生翘曲时 或下层半导体封装,导电凸块可以补偿由焊球塌陷引起的不适当的高度,或填充由经线引起的焊球和可堆叠焊盘之间的间隙,从而允许焊球能够有效地接触和 在下层半导体封装的衬底上湿润。

    Fabrication method of multi-chip stack structure
    2.
    发明授权
    Fabrication method of multi-chip stack structure 有权
    多芯片堆叠结构的制作方法

    公开(公告)号:US07981729B2

    公开(公告)日:2011-07-19

    申请号:US12818701

    申请日:2010-06-18

    IPC分类号: H01L21/60

    摘要: A multi-chip stack structure and a fabrication method thereof are proposed, including providing a leadframe having a die base and a plurality of leads and disposing a first and a second chips on the two surfaces of the die base respectively; disposing the leadframe on a heating block having a cavity in a wire bonding process with the second chip received in the cavity of the heating block; performing a first wire bonding process to electrically connect the first chip to the leads through a plurality of first bonding wires, and forming a bump on one side of the leads connected with the first bonding wires; disposing the leadframe in an upside down manner to the heating block via the bump with the first chip and the first bonding wires received in the cavity of the heating block; and performing a second wire bonding process to electrically connect the second chip to the leads through a plurality of second bonding wires. The bump is used for supporting the leads to a certain height so as to keep the bonding wires from contacting the heating block and eliminate the need of using a second heating block in the second wire bonding process of the prior art, thereby saving time and costs in a fabrication process. Also, as positions where the first and second bonding wires are bonded to the leads on opposite sides of the leadframe correspond with each other, the conventional problems of adversely affected electrical performance and electrical mismatch can be prevented.

    摘要翻译: 提出了一种多芯片堆叠结构及其制造方法,包括提供具有芯片基底和多个引线的引线框架,并分别在模具基座的两个表面上设置第一和第二芯片; 将引线框架布置在具有引线接合工艺中的空腔的加热块上,第二芯片容纳在加热块的空腔中; 执行第一引线接合工艺,以通过多个第一接合线将第一芯片电连接到引线,以及在与第一接合线连接的引线的一侧上形成凸块; 通过第一芯片和第一接合线容纳在加热块的空腔中,通过凸块将引线框倒置放置到加热块, 以及执行第二引线接合处理,以通过多个第二接合线将所述第二芯片电连接到所述引线。 凸块用于将引线支撑到一定高度,以便使接合线不会接触加热块,并且在现有技术的第二引线接合过程中不需要使用第二加热块,从而节省了时间和成本 在制造过程中。 此外,由于第一和第二接合线与引线框架的相对侧上的引线接合的位置彼此对应,可以防止电性能和电不匹配受到不利影响的常规问题。

    FABRICATION METHOD OF MULTI-CHIP STACK STRUCTURE
    3.
    发明申请
    FABRICATION METHOD OF MULTI-CHIP STACK STRUCTURE 有权
    多芯片堆叠结构的制作方法

    公开(公告)号:US20100255635A1

    公开(公告)日:2010-10-07

    申请号:US12818701

    申请日:2010-06-18

    IPC分类号: H01L21/60

    摘要: A multi-chip stack structure and a fabrication method thereof are proposed, including providing a leadframe having a die base and a plurality of leads and disposing a first and a second chips on the two surfaces of the die base respectively; disposing the leadframe on a heating block having a cavity in a wire bonding process with the second chip received in the cavity of the heating block; performing a first wire bonding process to electrically connect the first chip to the leads through a plurality of first bonding wires, and forming a bump on one side of the leads connected with the first bonding wires; disposing the leadframe in an upside down manner to the heating block via the bump with the first chip and the first bonding wires received in the cavity of the heating block; and performing a second wire bonding process to electrically connect the second chip to the leads through a plurality of second bonding wires. The bump is used for supporting the leads to a certain height so as to keep the bonding wires from contacting the heating block and eliminate the need of using a second heating block in the second wire bonding process of the prior art, thereby saving time and costs in a fabrication process. Also, as positions where the first and second bonding wires are bonded to the leads on opposite sides of the leadframe correspond with each other, the conventional problems of adversely affected electrical performance and electrical mismatch can be prevented.

    摘要翻译: 提出了一种多芯片堆叠结构及其制造方法,包括提供具有芯片基底和多个引线的引线框架,并分别在模具基座的两个表面上设置第一和第二芯片; 将引线框架布置在具有引线接合工艺中的空腔的加热块上,第二芯片容纳在加热块的空腔中; 执行第一引线接合工艺,以通过多个第一接合线将第一芯片电连接到引线,以及在与第一接合线连接的引线的一侧上形成凸块; 通过第一芯片和第一接合线容纳在加热块的空腔中,通过凸块将引线框倒置放置到加热块, 以及执行第二引线接合处理,以通过多个第二接合线将所述第二芯片电连接到所述引线。 凸块用于将引线支撑到一定高度,以便使接合线不会接触加热块,并且在现有技术的第二引线接合过程中不需要使用第二加热块,从而节省了时间和成本 在制造过程中。 此外,由于第一和第二接合线与引线框架的相对侧上的引线接合的位置彼此对应,可以防止电性能和电不匹配受到不利影响的常规问题。

    Multi-chip stack structure and fabrication method thereof
    4.
    发明申请
    Multi-chip stack structure and fabrication method thereof 有权
    多芯片堆叠结构及其制造方法

    公开(公告)号:US20080224289A1

    公开(公告)日:2008-09-18

    申请号:US12077003

    申请日:2008-03-13

    IPC分类号: H01L23/495 H01L21/00

    摘要: A multi-chip stack structure and a fabrication method thereof are proposed, including providing a leadframe having a die base and a plurality of leads and disposing a first and a second chips on the two surfaces of the die base respectively; disposing the leadframe on a heating block having a cavity in a wire bonding process with the second chip received in the cavity of the heating block; performing a first wire bonding process to electrically connect the first chip to the leads through a plurality of first bonding wires, and forming a bump on one side of the leads connected with the first bonding wires; disposing the leadframe in an upside down manner to the heating block via the bump with the first chip and the first bonding wires received in the cavity of the heating block; and performing a second wire bonding process to electrically connect the second chip to the leads through a plurality of second bonding wires. The bump is used for supporting the leads to a certain height so as to keep the bonding wires from contacting the heating block and eliminate the need of using a second heating block in the second wire bonding process of the prior art, thereby saving time and costs in a fabrication process. Also, as positions where the first and second bonding wires are bonded to the leads on opposite sides of the leadframe correspond with each other, the conventional problems of adversely affected electrical performance and electrical mismatch can be prevented.

    摘要翻译: 提出了一种多芯片堆叠结构及其制造方法,包括提供具有芯片基底和多个引线的引线框架,并分别在模具基座的两个表面上设置第一和第二芯片; 将引线框架布置在具有引线接合工艺中的空腔的加热块上,第二芯片容纳在加热块的空腔中; 执行第一引线接合工艺,以通过多个第一接合线将第一芯片电连接到引线,以及在与第一接合线连接的引线的一侧上形成凸块; 通过第一芯片和第一接合线容纳在加热块的空腔中,通过凸块将引线框倒置放置到加热块, 以及执行第二引线接合处理,以通过多个第二接合线将所述第二芯片电连接到所述引线。 凸块用于将引线支撑到一定高度,以便使接合线不会接触加热块,并且在现有技术的第二引线接合过程中不需要使用第二加热块,从而节省了时间和成本 在制造过程中。 此外,由于第一和第二接合线与引线框架的相对侧上的引线接合的位置彼此对应,可以防止电性能和电不匹配受到不利影响的常规问题。

    Multi-chip stack structure and fabricating method thereof
    6.
    发明申请
    Multi-chip stack structure and fabricating method thereof 审中-公开
    多芯片堆叠结构及其制造方法

    公开(公告)号:US20090014860A1

    公开(公告)日:2009-01-15

    申请号:US12011832

    申请日:2008-01-29

    IPC分类号: H01L21/00 H01L23/02

    摘要: A multi-chip stack structure and a manufacturing method thereof are provided. The fabrication method includes the steps of: providing a chip carrier having a first surface and a second surface opposing thereto and at least a first chip and a second chip mounted on the first surface; electrically connecting the chips to the chip carrier by a plurality of bonding wires; and stacking at least a third chip on the first and second chips by a film deposed therebetween, wherein the third chip is stepwise stacked on the first chip and at least a part of the bonding wire connected to the second chip is covered by the film, and electrically connecting the third chip and the chip carrier by a bonding wire, thereby enabling a plurality of chips to be stacked on the chip carrier to enhance the electrical performance of electronic products.

    摘要翻译: 提供了一种多芯片堆叠结构及其制造方法。 该制造方法包括以下步骤:提供具有与其相对的第一表面和第二表面的芯片载体和至少安装在第一表面上的第一芯片和第二芯片; 通过多个接合线将芯片电连接到芯片载体上; 并且通过其间放置的膜将第一和第二芯片上的至少第三芯片堆叠起来,其中第三芯片逐步堆叠在第一芯片上,并且连接到第二芯片的键合线的至少一部分被膜覆盖, 并通过接合线电连接第三芯片和芯片载体,从而能够将多个芯片堆叠在芯片载体上,以增强电子产品的电气性能。

    MULTI-CHIP STACK STRUCTURE HAVING THROUGH SILICON VIA
    7.
    发明申请
    MULTI-CHIP STACK STRUCTURE HAVING THROUGH SILICON VIA 审中-公开
    通过硅的多芯片堆叠结构

    公开(公告)号:US20110227226A1

    公开(公告)日:2011-09-22

    申请号:US13151823

    申请日:2011-06-02

    IPC分类号: H01L23/48

    摘要: The invention discloses a multi-chip stack structure having through silicon via and a method for fabricating the same. The method includes: providing a wafer having a plurality of first chips; forming a plurality of holes on a first surface of each of the first chips and forming metal posts and solder pads corresponding to the holes so as to form a through silicon via (TSV) structure; forming at least one groove on a second surface of each of the first chips to expose the metal posts of the TSV structure so as to allow at least one second chip to be stacked on the first chip, received in the groove and electrically connected to the metal posts exposed from the groove; filling the groove with an insulating material for encapsulating the second chip; mounting conductive elements on the solder pads of the first surface of each of the first chips and singulating the wafer; and mounting and electrically connecting the stacked first and second chips to a chip carrier via the conductive elements. The wafer, which is not totally thinned but includes a plurality of first chips, severs a carrying purpose during the fabrication process and thereby solves problems, namely a complicated process, high cost, and adhesive layer contamination, facing the prior art that entails repeated use of a carrier board and an adhesive layer for vertically stacking a plurality of chips and mounting the stacked chips on a chip carrier.

    摘要翻译: 本发明公开了一种通过硅通孔的多芯片堆叠结构及其制造方法。 该方法包括:提供具有多个第一芯片的晶片; 在每个所述第一芯片的第一表面上形成多个孔,并形成对应于所述孔的金属柱和焊盘,以形成贯穿硅通孔(TSV)结构; 在所述第一芯片的每一个的第二表面上形成至少一个凹槽以暴露所述TSV结构的所述金属柱,以允许至少一个第二芯片堆叠在所述第一芯片上,被接收在所述凹槽中并电连接到 从槽露出的金属柱; 用绝缘材料填充凹槽以封装第二芯片; 将导电元件安装在每个第一芯片的第一表面的焊盘上并分离晶片; 并且经由导电元件将堆叠的第一和第二芯片安装并电连接到芯片载体。 不是完全变薄但包括多个第一芯片的晶片在制造过程中切断了承载目的,从而解决了面临现有技术需要重复使用的问题,即复杂的工艺,高成本和粘合剂层污染 的载体板和用于垂直堆叠多个芯片的粘合剂层,并将堆叠的芯片安装在芯片载体上。

    Multi-chip stack structure having through silicon via and method for fabrication the same
    9.
    发明申请
    Multi-chip stack structure having through silicon via and method for fabrication the same 审中-公开
    具有硅通孔的多芯片堆叠结构及其制造方法

    公开(公告)号:US20090032928A1

    公开(公告)日:2009-02-05

    申请号:US12220995

    申请日:2008-07-30

    IPC分类号: H01L23/52 H01L21/00

    摘要: The invention discloses a multi-chip stack structure having through silicon via and a method for fabricating the same. The method includes: providing a wafer having a plurality of first chips; forming a plurality of holes on a first surface of each of the first chips and forming metal posts and solder pads corresponding to the holes so as to form a through silicon via (TSV) structure; forming at least one groove on a second surface of each of the first chips to expose the metal posts of the TSV structure so as to allow at least one second chip to be stacked on the first chip, received in the groove and electrically connected to the metal posts exposed from the groove; filling the groove with an insulating material for encapsulating the second chip; mounting conductive elements on the solder pads of the first surface of each of the first chips and singulating the wafer; and mounting and electrically connecting the stacked first and second chips to a chip carrier via the conductive elements. The wafer, which is not totally thinned but includes a plurality of first chips, severs a carrying purpose during the fabrication process and thereby solves problems, namely a complicated process, high cost, and adhesive layer contamination, facing the prior art that entails repeated use of a carrier board and an adhesive layer for vertically stacking a plurality of chips and mounting the stacked chips on a chip carrier.

    摘要翻译: 本发明公开了一种通过硅通孔的多芯片堆叠结构及其制造方法。 该方法包括:提供具有多个第一芯片的晶片; 在每个所述第一芯片的第一表面上形成多个孔,并形成对应于所述孔的金属柱和焊盘,以形成贯穿硅通孔(TSV)结构; 在所述第一芯片的每一个的第二表面上形成至少一个凹槽以暴露所述TSV结构的所述金属柱,以允许至少一个第二芯片堆叠在所述第一芯片上,被接收在所述凹槽中并电连接到 从槽露出的金属柱; 用绝缘材料填充凹槽以封装第二芯片; 将导电元件安装在每个第一芯片的第一表面的焊盘上并分离晶片; 并且经由导电元件将堆叠的第一和第二芯片安装并电连接到芯片载体。 不是完全变薄但包括多个第一芯片的晶片在制造过程中切断了承载目的,从而解决了面临现有技术需要重复使用的问题,即复杂的工艺,高成本和粘合剂层污染 的载体板和用于垂直堆叠多个芯片的粘合剂层,并将堆叠的芯片安装在芯片载体上。