High-density micro via substrate with high wiring performance
    2.
    发明专利
    High-density micro via substrate with high wiring performance 有权
    高密度微通过具有高接线性能的基板

    公开(公告)号:JP2005142564A

    公开(公告)日:2005-06-02

    申请号:JP2004319589

    申请日:2004-11-02

    Abstract: PROBLEM TO BE SOLVED: To provide a hole pattern for increasing the plated through hole density within a fiber base chip carrier, without the risk of inducing short circuiting by the fiber.
    SOLUTION: The plated through hole density within a glass fiber base chip carrier can be enhanced, by placing a hole at a shifted position at which the hole is not connected to a neighboring hole via a fiber. A narrow and long strip zone or region is demarcated, having a width nearly equal to the diameter of the hole and extending in the direction parallel to the direction of the fiber along the row and column of the holes perpendicular to each other defines a region, in which a short circuit may be induced potentially therein. For example, by rotating a conventional X-Y grid pattern, in which holes are arranged at equal intervals so that the hole in one direction is located at every other places between neighboring long and narrow strip zones extending in opposite directions, the interval between holes along the long and narrow strip zone extending in each direction is significantly increased. The hole is located between long and narrow strip zones at a sufficient clearance for compensating the variations in the path of a fiber.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供用于增加光纤基片芯片载体内的电镀通孔密度的孔图案,而不会引起纤维短路的风险。 解决方案:通过在孔未通过光纤连接到相邻孔的偏移位置处设置孔,可以提高玻璃纤维基底芯片载体内的电镀通孔密度。 狭窄且长的带状区域或区域被划分,其宽度几乎等于孔的直径并且沿平行于纤维的方向的方向延伸,沿着彼此垂直的孔的行和列限定了区域, 其中可能潜在地引起短路。 例如,通过旋转传统的XY网格图案,其中孔以相等的间隔布置,使得一个方向上的孔位于沿相反方向延伸的相邻的长条带区域和窄带区域之间的每隔一个位置,沿着 在每个方向上延伸的长而窄的带状区显着增加。 孔以足够的间隙位于长而窄的条带之间,用于补偿光纤路径的变化。 版权所有(C)2005,JPO&NCIPI

    MANUFACTURE OF CIRCUIT BOARD
    3.
    发明专利

    公开(公告)号:JP2000294927A

    公开(公告)日:2000-10-20

    申请号:JP2000092241

    申请日:2000-03-29

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a method, in which a multilayer circuit board is formed on a board which comprises a first-level circuit pattern on at least one face. SOLUTION: This manufacturing method for a circuit board comprises a process 80, in which a dielectric capable of permanent imaging is formed as to cover a first-level circuit pattern. The manufacturing method contains a process 82, in which the dielectric capable of permanent imaging is exposed to radiation, process 84 in which a conductive metal layer is laminated on the dielectric, a process 86 in which a hole is formed in the conductive metal layer and the dielectric by a laser, a plasma ablation operation or a mechanical drilling operation, a process 8 in which a second-level circuit pattern is formed in which the hole is filled with a conductive material and in which the first-level circuit pattern and the second-level circuit pattern are connected electrically.

    CIRCUIT BOARD HAVING PRIMARY AND SECONDARY THROUGH-HOLES AND MANUFACTURE THEREOF

    公开(公告)号:JPH10341080A

    公开(公告)日:1998-12-22

    申请号:JP14549698

    申请日:1998-05-27

    Applicant: IBM

    Inventor: MEMIS IRVING

    Abstract: PROBLEM TO BE SOLVED: To provide a multilayered printed circuit board which has a high wiring density. SOLUTION: A circuit board 10 has contacts 20 thereon which are arranged so as to be engaged with contact pads 34 provided on a chip carrier 30 and is defined as a grating. A plurality of primary through-holes 22 are made in the circuit board at corresponding positions in the grating and are electrically connected to the upper chip contact pads. A plurality of secondary through-holes 26 are made in the board as being positioned outside of the grating has an being electrically connected inside of the chip contact pads.

    Printed circuit boards for mounting a semiconductor interated circuit die.

    公开(公告)号:HK1019281A1

    公开(公告)日:2000-01-28

    申请号:HK99103690

    申请日:1999-08-27

    Applicant: IBM

    Abstract: The present invention provides printed circuit boards for mounting to a semiconductor integrated circuit die. In one embodiment the printed circuit boards comprise a rigid dielectric substrate having a planar face, a plurality of circuit lines affixed to the face of the substrate, and a plurality of conductive bumps affixed to the face of the substrate. Each conductive bump has an upper bonding surface that is substantially planar and a lateral surface which is essentially perpendicular to the face of the substrate. The conductive bumps and the circuit lines are formed from a single metallic layer. The conductive bumps and circuit lines constitute a unitary, integral structure, i.e., each conductive bump and connecting circuit line lack a physical interface therebetween. The upper surfaces of the conductive bumps extend to essentially the same height above the surface of the substrate, i.e., the upper surfaces of the conductive bumps are substantially coplanar relative to each other. In another embodiment, the printed circuit board further comprises a unitary solder dam or a plurality of unconnected solder dams that partially or completely surround the conductive bumps. The solder dam has an upper surface which lies below the upper bonding surface of the conductive bump. The solder dam is positioned to prevent the alloy, particularly solder, which is subsequently disposed on each conductive bump from flowing along the circuit lines that are integrally connected to the conductive bump. The present invention also relates to a microelectronic package that comprises a semiconductor integrated circuit die mounted to a printed circuit board made in accordance with the present invention.

    CIRCUIT BOARD WITH PRIMARY AND SECONDARY THROUGH HOLES

    公开(公告)号:MY121703A

    公开(公告)日:2006-02-28

    申请号:MYPI9802013

    申请日:1998-05-06

    Applicant: IBM

    Inventor: MEMIS IRVING

    Abstract: A CIRCUIT BOARD (10) IS PROVIDED WHICH HAS CONTACTS (20) ON THE SURFACE (15) ARRAYED TO ENGAGE CONTACT PADS (34) ON A CHIP CARRIER (30) BOUNDED BY A GRID (44). A PLURALITY OF PRIMARY THROUGH HOLES (22) ARE PROVIDED IN THE CIRCUIT BOARD LOCATION WITHIN THE GRID IN AN INTERSTITIAL ARRAY AND ELECTRICALLY CONNECTED TO RESPECTIVE FIRST CHIP CONTACT PADS THEREABOVE. A PLURALITY OF SECONDARY THROUGH HOLES (26) ARE PROVIDED WHICH ARE LOCATED OUTSIDE THE GRID AND ELECTRICALLY CONNECTED TO RESPECTIVE SECOND CHIP CONTACT PADS.

    10.
    发明专利
    未知

    公开(公告)号:DE69800514T2

    公开(公告)日:2001-09-27

    申请号:DE69800514

    申请日:1998-05-26

    Applicant: IBM

    Inventor: MEMIS IRVING

    Abstract: A circuit board is provided which has contacts on the surface arrayed to engage contact pads on a chip carrier bounded by a grid. A plurality of primary through holes are provided in the circuit board location within the grid in an interstitial array and electrically connected to respective first chip contact pads thereabove. A plurality of secondary through holes are provided which are located outside the grid and electrically connected to respective second chip contact pads.

Patent Agency Ranking