Method of fabricating a semiconductor device package having a core-hollowed portion without causing resin flash on lead frame
    111.
    发明授权
    Method of fabricating a semiconductor device package having a core-hollowed portion without causing resin flash on lead frame 有权
    制造具有芯 - 中空部分而不引起引线框架上的树脂闪光的半导体器件封装的方法

    公开(公告)号:US06643919B1

    公开(公告)日:2003-11-11

    申请号:US09574869

    申请日:2000-05-19

    申请人: Chien-Ping Huang

    发明人: Chien-Ping Huang

    IPC分类号: H01R4300

    摘要: A semiconductor device package fabrication method is proposed, which is used for the fabrication of a semiconductor device package of the type having a core-hollowed portion that is typically used to house an optically-sensitive semiconductor device such as an image sensor or an ultraviolet-sensitive EPROM (Electrically-Programmable Read-Only Memory) device. The proposed method is characterized in the use of a support pillar, which is positioned beneath the lead frame when the lead frame is clamped between a top inserted mold and a bottom cavity mold, to help prevent resin flash on the lead frame during the molding of the core-hollowed portion. As a result, the proposed method can help strengthen the bonding of the semiconductor device on the die pad as well as the wire bonding on the inner end of the finger portion of the lead frame, Moreover, since the making of the support pillar would be significantly cheaper and easier to implement than the use of an organic high-molecule coating and a solvent as in the case of the prior art flash prevention, the proposed method is more cost-effective and environmentally-friendly to use than the prior art.

    摘要翻译: 提出了一种半导体器件封装制造方法,其用于制造具有芯空心部分的类型的半导体器件封装,该芯 - 中空部分通常用于容纳诸如图像传感器或紫外线照射的光敏半导体器件, 灵敏的EPROM(电可编程只读存储器)器件。 所提出的方法的特征在于当引线框架被夹持在顶部插入的模具和底部空腔模具之间时,位于引线框架下方的支撑柱的使用,以帮助防止在成型期间引线框架上的树脂闪光 芯 - 中空部分。 结果,所提出的方法可以有助于加强半导体器件在芯片焊盘上的接合以及引线框架的指状部分的内端上的引线接合。此外,由于支撑柱的制造将是 与使用现有技术闪光灯防止的情况相比,使用有机高分子涂层和溶剂显着地便宜且易于实现,所提出的方法比现有技术更具成本效益和使用环境友好性。

    Quad flat non-leaded package and leadframe for use in a quad flat non-leaded package
    113.
    发明授权
    Quad flat non-leaded package and leadframe for use in a quad flat non-leaded package 有权
    四面扁平无铅封装和引线框架,用于四方扁平无铅封装

    公开(公告)号:US06583499B2

    公开(公告)日:2003-06-24

    申请号:US09861757

    申请日:2001-05-21

    IPC分类号: H01L23495

    摘要: A quad flat non-leaded package comprises: a die pad having a first upper surface and a corresponding first lower surface thereon a plurality of interlacing slots are formed, each of the interlacing slots extending to the edges of the die pad to form a plurality of island-like blocks; a plurality of leads disposed at the periphery of the die pad, wherein each of the leads has respectively a second upper surface and a corresponding second lower surface coplanar to the surface of the island-like blocks; a chip having an active surface and a corresponding back surface adhered onto the first upper surface of the die pad; and a molding compound encapsulating the chip, the second upper surface, the first upper surface and the interlacing slots while exposing the surface of the island-like blocks and the second lower surface of the leads.

    摘要翻译: 四边形无铅包装包括:形成具有第一上表面和其上的对应的第一下表面的管芯焊盘,其上形成有多个交缠槽,每个交缠槽延伸到管芯焊盘的边缘以形成多个 岛状块 多个引线设置在管芯焊盘的周边,其中每个引线分别具有与岛状块的表面共面的第二上表面和相应的第二下表面; 芯片,其具有粘附到芯片焊盘的第一上表面上的活性表面和对应的背面; 以及在使岛状块的表面和引线的第二下表面暴露的同时封装芯片,第二上表面,第一上表面和交织槽的模塑料。

    Ball grid array package
    118.
    发明授权
    Ball grid array package 有权
    球栅阵列封装

    公开(公告)号:US06396707B1

    公开(公告)日:2002-05-28

    申请号:US09454006

    申请日:1999-12-03

    IPC分类号: H05K702

    摘要: A ball grid array package comprises a substrate having a first surface and a second surface, a chip, an insulating material, and a solder ball. The surface of the substrate comprises ball pads, conducting traces, and solder masks wherein the conducting traces are disposed in between the adjacent ball pads, and are covered by the solder mask, in addition, a portion of each of the ball pads is also covered by the solder mask. The solder mask includes an opening positioned in the area corresponding to the ball pads wherein the opening exposes a portion of the surface the ball pad and a portion of the side wall of the ball pad. The chip is disposed on the second surface of the substrate, and is sealed and encapsulated by the insulated material. The solder balls are disposed on the first surface of the substrate, and are positioned at the openings of the ball pads. Additionally, the solder balls are electrically connected to a portion of the surface of the ball pads and a portion of the side wall of the ball pads disposed at the ball pad openings.

    摘要翻译: 球栅阵列封装包括具有第一表面和第二表面的衬底,芯片,绝缘材料和焊球。 衬底的表面包括球垫,导电迹线和焊接掩模,其中导电迹线设置在相邻的球垫之间,并被焊接掩模覆盖,此外,每个球垫的一部分也被覆盖 通过焊接面罩。 焊接掩模包括位于对应于球垫的区域中的开口,其中开口暴露表面的一部分球垫和球垫的侧壁的一部分。 芯片设置在基板的第二表面上,并被绝缘材料密封和封装。 焊球设置在基板的第一表面上,并且位于球垫的开口处。 此外,焊球与电极焊盘表面的一部分电连接,球垫侧壁的一部分设置在球垫开口处。

    Method of bonding ball grid array package to circuit board without causing package collapse
    119.
    发明授权
    Method of bonding ball grid array package to circuit board without causing package collapse 有权
    将球栅阵列封装焊接到电路板而不会导致封装崩溃的方法

    公开(公告)号:US06350669B1

    公开(公告)日:2002-02-26

    申请号:US09699888

    申请日:2000-10-30

    IPC分类号: H01L2144

    摘要: A method is proposed for bonding a BGA (Ball Grid Array) package to a circuit board without causing the collapsing of the BGA package against the circuit board. The proposed method is characterized in the use of two groups of solder balls of different reflow collapse degrees, which are arranged in an interspersed manner among each other in the ball grid array. In one embodiment, the first group of solder balls are homogenously made of a solder material of a specific melting point; and the second group of solder balls each include an outer portion and a core portion, with the outer portion having substantially the same melting point as the first group of solder balls, and the core portion being greater in melting point than the outer portion. In another embodiment, the second group of solder balls are greater in melting point than the first group of solder balls. During the solder-reflow process, when the first group of solder balls are entirely melted, the second group of solder balls are only partly melted or entirely unmelted and thus are capable of providing a solid support to the BGA package to prevent the collapsing of BGA package against circuit board.

    摘要翻译: 提出了一种用于将BGA(球栅阵列)封装结合到电路板而不引起BGA封装相对于电路板折叠的方法。 所提出的方法的特征在于使用不同回流塌陷度的两组焊球,其在球栅阵列中以散布的方式相互排列。 在一个实施例中,第一组焊球由具有特定熔点的焊料均质地制成; 并且第二组焊球各自包括外部部分和芯部分,外部部分具有与第一组焊球基本相同的熔点,并且芯部分的熔点大于外部部分。 在另一个实施例中,第二组焊球的熔点高于第一组焊球。 在焊料回流工艺期间,当第一组焊球完全熔化时,第二组焊球仅部分熔化或完全未熔化,因此能够为BGA封装提供固体支撑以防止BGA的塌陷 封装电路板。

    Flash-free mold structure for integrated circuit package
    120.
    发明授权
    Flash-free mold structure for integrated circuit package 失效
    无闪存模块结构用于集成电路封装

    公开(公告)号:US06290481B1

    公开(公告)日:2001-09-18

    申请号:US09574878

    申请日:2000-05-19

    申请人: Chien-Ping Huang

    发明人: Chien-Ping Huang

    IPC分类号: B29C4514

    摘要: A flash-free mold structure is designed for use in the molding of an encapsulant for encapsulating a semiconductor die. The flash-free mold structure includes a first molding piece and a second molding piece. The second molding piece is formed with a resin passage for an encapsulating material to flow therethrough during molding process. It is a characteristic feature of this flash-free mold structure that a cutaway portion, which can be either an one-step cutaway portion or a multi-step cutaway portion, is formed at the rim of the resin passage. The cutaway portion is dimensioned significantly smaller than the resin passage for the retarding the flow speed of the encapsulating material from the resin passage into the cutaway portion during the molding process, thereby preventing the encapsulating material from entering the fissure in the junction between the first and second molding pieces. The resin passage can be either a cull, a runner, or a subrunner defined by the first and second molding pieces. With this flash-free mold structure, the IC packaging quality can be assured and fabrication tools can be prevented from contamination.

    摘要翻译: 无闪光模具结构被设计用于模制用于封装半导体管芯的密封剂。 无闪光模具结构包括第一成型件和第二成型件。 第二成型件在模制过程中由用于密封材料的树脂通道形成为流过其中。 这种无闪光模具结构的特征在于,在树脂通道的边缘处形成有可以是一步切口部分或多段切口部分的切口部分。 切割部分的尺寸明显小于树脂通道,用于在模制过程中阻止封装材料从树脂通道进入切除部分的流动速度,从而防止封装材料在第一和第二部分之间的接合处进入裂缝 第二个成型件。 树脂通道可以是由第一和第二成型件限定的剔除,流道或辅助材料。 利用这种无闪光模具结构,可以确保IC封装质量,并可防止制造工具的污染。