Method for testing a ball grid array semiconductor device and a device
for such testing
    4.
    发明授权
    Method for testing a ball grid array semiconductor device and a device for such testing 失效
    用于测试球栅阵列半导体器件的方法和用于这种测试的器件

    公开(公告)号:US5731709A

    公开(公告)日:1998-03-24

    申请号:US592256

    申请日:1996-01-26

    IPC分类号: G01R1/04 G01R31/02

    摘要: A ball grid array semiconductor device (30) includes a plurality of conductive balls (36) and a plurality of conductive castellations (18) around its periphery as redundant electrical connections to a semiconductor die (12). During testing of the device in a test socket (50), the conductive castellations are contacted by test contacts (54). The test contacts do not come in physical contact with the conductive balls. As a result, when testing is performed at elevated temperatures near the melting point of the conductive balls, the conductive balls are not deformed by the test contacts, thereby eliminating cosmetic-defects. Additionally, the absence of physical contact between the conductive balls and the test contacts during testing reduces the likelihood that conductive balls will inadvertently fuse to the test socket or create solder build-up on the test contacts.

    摘要翻译: 球栅阵列半导体器件(30)包括围绕其周边的多个导电球(36)和多个导电堰(18),作为到半导体管芯(12)的冗余电连接。 在测试插座(50)中测试设备期间,导电蓖耳体被测试触点(54)接触。 测试触点不会与导电球物理接触。 结果,当在导电球的熔点附近的高温下进行测试时,导电球不会被测试触点变形,从而消除了美观缺陷。 另外,在测试期间导电球和测试触点之间不存在物理接触会降低导电球将不经意地融合到测试插座或在测试触点上产生焊料积聚的可能性。

    Method for making an electronic component having an organic substrate
    5.
    发明授权
    Method for making an electronic component having an organic substrate 失效
    制造具有有机基板的电子部件的方法

    公开(公告)号:US5691242A

    公开(公告)日:1997-11-25

    申请号:US606981

    申请日:1996-02-26

    摘要: A method for packaging an integrated circuit begins by providing an organic substrate (310) having at least one device site (312). Within each device site, one or more electronic devices (532) is mounted. Around the device site, slots (316) and corner holes (318) are formed. In one embodiment, a negative feature, such as a notch (326), is formed in the substrate along the inner edge (315) of the slots. After the electronic device is mounted and encapsulated in a plastic package body (320), the device is excised from the substrate by punching corner regions of a final package perimeter (317). The placement of the slots, corner holes, and notches results in a punch periphery that is free from burrs, provides maximum active interconnect area, and minimizes surface and/or edge damage during the punch operation. Instead of forming notches, a positive feature, such as a protrusion (426) can be incorporated into a punching tool segment (428) to provide the same benefits.

    摘要翻译: 一种用于封装集成电路的方法通过提供具有至少一个器件位置(312)的有机衬底(310)开始。 在每个设备站点内安装一个或多个电子设备(532)。 围绕设备现场,形成槽(316)和角孔(318)。 在一个实施例中,沿着槽的内边缘(315)在衬底中形成负特征,例如凹口(326)。 在将电子设备安装并封装在塑料封装主体(320)中之后,通过冲压最终封装周边(317)的拐角区域将装置从基板上排出。 槽,角孔和缺口的放置导致没有毛刺的冲头周边,提供最大的有源互连面积,并且在冲压操作期间最小化表面和/或边缘损伤。 代替形成凹口,可以将诸如突起(426)的积极特征结合到冲压工具段(428)中以提供相同的益处。

    Vacuum seal indicator for flexible packaging material
    7.
    发明授权
    Vacuum seal indicator for flexible packaging material 失效
    真空密封指示器用于软包装材料

    公开(公告)号:US5287962A

    公开(公告)日:1994-02-22

    申请号:US933541

    申请日:1992-08-24

    摘要: Plastic encapsulated semiconductor devices are susceptible to moisture due to the permeability of molding compounds. Devices may be baked until dry before being shipped to the customer to reduce the risk of cracking. To retain this dry condition, devices are packaged and shipped in dry-packs. A vacuum seal indicator (18) for flexible material enables a user to determine the integrity of a vacuum seal. The seal indicator has a quick recognition pattern composed of either negative (22) or positive (24) features or a combination thereof, and is placed inside a dry-pack bag (30) which is vacuum sealed prior to shipping. The integrity of the vacuum seal can be determined by looking at the dry-pack bag to see whether the recognition pattern is sharply defined against the bag or not. The vacuum seal indicator can be used in conjunction with any shipping media (28) as long as the outer bag is flexible.

    摘要翻译: 由于模塑料的渗透性,塑料封装的半导体器件易受潮湿。 设备可以在运输到客户之前烘烤直到干燥,以降低开裂的风险。 为了保持这种干燥条件,设备被包装并以干包装运输。 用于柔性材料的真空密封指示器(18)使得用户能够确定真空密封的完整性。 密封指示器具有由负(22)或正(24)特征或其组合组成的快速识别图案,并且放置在运输之前被真空密封的干包装袋(30)内。 可以通过观察干包袋来确定真空密封件的完整性,以查看识别图案是否相对于袋子被清晰地定义。 真空密封指示器可以与任何运输介质(28)一起使用,只要外袋是柔性的。