Multiple wiring and X section printed circuit board technique
    1.
    发明授权
    Multiple wiring and X section printed circuit board technique 失效
    多线和X段印刷电路板技术

    公开(公告)号:US5418690A

    公开(公告)日:1995-05-23

    申请号:US309554

    申请日:1994-09-20

    IPC分类号: H05K1/00 H05K1/02 H05K3/46

    摘要: Multiple circuit functions embodied in electrical circuit lines and areas are supported by a multilayered printed circuit board of various lengths and widths (defining "x" and "y" directions) and of various thicknesses (defining a "z" direction) all on a single board. Several ways of achieving such variations in thickness include providing two layer subassemblies arranged in an alternate and intermediate manner, one subassembly being adapted to support electrical circuit lines and areas, and the other subassembly being formed of thin film dielectric material of various precalculated thicknesses. Another way of achieving a variation in thickness is to limit the surface covered by circuit lines with a pre-calculated core thickness.

    摘要翻译: 在电路线路和区域中实现的多电路功能由各种长度和宽度(定义“x”和“y”方向)和各种厚度(限定“z”方向)的多层印刷电路板支持, 板。 实现这种厚度变化的几种方式包括提供以交替和中间方式布置的两层子组件,一个子组件适于支撑电路线和区域,而另一子组件由各种预先计算厚度的薄膜电介质材料形成。 实现厚度变化的另一种方法是以预先计算的芯厚限制电路线覆盖的表面。

    Non-annular lands
    2.
    发明授权
    Non-annular lands 失效
    非环形土地

    公开(公告)号:US5539156A

    公开(公告)日:1996-07-23

    申请号:US340508

    申请日:1994-11-16

    摘要: The present invention increases real estate by providing non-annular lands which do not completely encircle the through holes. The non-annular lands are non-annular, that is they do not extend 360.degree. around the through hole. Preferably the non-annular lands contact no more than one side of the through holes thereby providing real estate not otherwise available using conventional lands. The present invention also relates to a method for producing such Non-annular lands.

    摘要翻译: 本发明通过提供不完全环绕通孔的非环形平台来增加房地产。 非环形区域是非环形的,也就是说它们不会围绕通孔延伸360度。 优选地,非环形焊盘与通孔的不超过一侧接触,从而提供使用常规焊盘不可获得的不动产。 本发明还涉及一种用于生产这种非环形焊盘的方法。

    Advanced chip packaging structure for memory card applications
    5.
    发明授权
    Advanced chip packaging structure for memory card applications 失效
    用于存储卡应用的高级芯片封装结构

    公开(公告)号:US5889654A

    公开(公告)日:1999-03-30

    申请号:US826963

    申请日:1997-04-09

    摘要: Integrated circuit chips (18, 42, or 56) are packaged within openings formed in a substrate such as PCMCIA Card (20, 40, or 54), thus allowing compliance with overall width dimension requirements for standardized electronic components. The arrangement has the advantages that thermal coefficient of expansion of the chips and cards match, and that a sturdy, multilayer ceramic substrate is used for electrical connection to electronic devices such as laptops, palmtops, and the like. In addition, a second integrated circuit chip (68) can be connected directly to the embedded chip (56), thereby allowing two chips to be accommodated in a card (54) at the same location and allowing chip-to-chip electrical communication. A variety of electrical bonding methods joining the embedded chip to the card can be employed. In addition, a variety of thermal conduction arrangements can be used for cooling the embedded integrated circuit chip.

    摘要翻译: 集成电路芯片(18,42或56)封装在诸如PCMCIA卡(20,40或54)的基板中形成的开口内,从而允许符合标准化电子元件的整体宽度尺寸要求。 该布置具有芯片和卡的热膨胀系数匹配的优点,并且使用坚固的多层陶瓷基板来电连接到诸如笔记本电脑,掌上电脑等的电子设备。 此外,第二集成电路芯片(68)可以直接连接到嵌入式芯片(56),从而允许两个芯片被容纳在相同位置的卡(54)中,并允许芯片间的电气通信。 可以采用将嵌入式芯片连接到卡的各种电接合方法。 此外,可以使用各种热传导布置来冷却嵌入式集成电路芯片。