会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明专利
    • Manufacture of lead frame
    • 铅框架的制造
    • JPS6143455A
    • 1986-03-03
    • JP16492084
    • 1984-08-08
    • Hitachi Ltd
    • SEKIHASHI MASAOFURUUMAYA KENICHI
    • H01L23/50H01L21/48
    • H01L21/4842
    • PURPOSE:To prevent the abnormal deformation and so forth of a lead frame from causing by a bend processing by a method wherein, firstly, a guide hole is provided in a part of the substrate, where is equivalent to a place to be cut off after the semiconductor package of the substrate is positioned, and the manufacturing operation in each process is conducted using this guide hole as a guide. CONSTITUTION:A guide hole 7 is provided in a part of a substrate 1, where is equivalent to a part where the semiconductor package of the substrate 1 is placed, and after that, an etching is performed on the minimum necessary parts of the substrate 1 excluding the parts where are cut off afterward including the place of the hole 7. Accordingly, the etching is not performed on the cuttable parts by press. Then, a bend processing is performed on the substrate 1 using the guide hole 7 as a guide. Subsequently, a plating layer 5 is coated by performing a plating, and lastly, unnecessary parts 8 are cut by the metal mold leaving lead parts 2 and the lead frame is finished. Since no etching is performed on the parts, where are cut off afterward in such a way, the parts can keep a state equal roughly to the strength of the substrate at the time before an etching is performed even in the state at the time when the etching.
    • 目的:为了防止引线框架的异常变形等引起弯曲加工,首先,在基板的一部分设置有引导孔,其中相当于在 定位基板的半导体封装,并且使用该引导孔作为引导件进行每个处理中的制造操作。 构成:在基板1的一部分设置有引导孔7,其中相当于放置基板1的半导体封装的部分,然后对基板1的最小必要部分进行蚀刻 不包括随后被切断的部分,包括孔7的位置。因此,不能通过压制对可切割部分进行蚀刻。 然后,使用引导孔7作为引导件对基板1进行弯曲加工。 随后,通过进行镀覆来涂覆镀层5,最后通过金属模切割不需要的部分8,留下引线部分2,引线框架完成。 由于不对这些部件进行蚀刻,所以在这种方式之后被切断的部分,即使在执行蚀刻之前的状态下,这些部件也可以保持与蚀刻之前的基板的强度大致相等的状态 蚀刻。