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    • 1. 发明申请
    • Circuit Board
    • 电路板
    • US20080190657A1
    • 2008-08-14
    • US10597306
    • 2005-01-06
    • Yoshifumi KanetakaNaomi Ishizuka
    • Yoshifumi KanetakaNaomi Ishizuka
    • H05K1/11H01R12/04
    • H05K1/116H05K3/3447H05K2201/094H05K2201/09854H05K2201/10189Y10T29/49139
    • A circuit board includes a plurality of through holes (14, 44) into which a plurality of leads (18) of one electronic devices are inserted and soldered. Among these through holes (14, 44), the volume of through hole (14b, 24b, 34b, 44b, 54, 64b) into which the outermost end lead of leads (18) of the electronic device is inserted, is set greater than the volume of through hole (14a, 44a), into which the lead at the position nearest to the center of the electronic device is inserted. Alternatively, the size of through hole (14b, 24b, 34b, 44b, 54, 64b), into which the outermost end lead of leads (18) is inserted, the size being measured in a direction of a straight line that connects a position of the outermost end lead of leads (18) of the electronic device, which is mounted before being soldered, and a center position of the electronic device at the time when the electronic device is mounted, is larger than the size of through hole (14a, 44a), into which the lead of leads (18) which is located at the position nearest to the center of the electronic device is inserted, the size being measured in any direction in a plane. Alternatively, the center position of through hole (74b), into which outermost end lead (18) of the electronic device is inserted, is shifted in a direction away from or approaching the center position of the electronic device at the time when the electronic device is mounted, from the position of outermost end lead (18) of the electronic device, which is mounted before being soldered, in accordance with the relationship between the amount of thermal expansion of the electronic device and that of the circuit board.
    • 电路板包括多个通孔(14,44),一个电子设备的多个引线(18)插入并焊接到其中。 在这些通孔(14,44)中,插入电子装置的引线(18)的最外端引线的通孔(14b,24b,34b,44b,54,64b)的容积 被设定为大于通孔(14a,44a)的体积,最靠近电子设备中心的位置处的引线插入其中。 或者,引线(18)的最外端引线插入的贯通孔(14b,24b,34b,44b,54bbb)的尺寸在直线方向上测量的尺寸 连接安装在焊接前的电子设备的引线(18)的最外端引线的位置与安装电子设备时的电子设备的中心位置的线大于尺寸 的通孔(14a,44a),其中位于最靠近电子设备中心的位置处的引线(18)的引线插入其中,该尺寸被测量在平面中的任何方向上。 或者,电子设备的最外端引线(18)插入其中的通孔(74b)的中心位置在电子设备的电子设备时沿远离或接近电子设备的中心位置的方向移动 装置根据电子装置的热膨胀量与电路板的热膨胀量之间的关系,从焊接前安装的电子装置的最外端引线(18)的位置安装。
    • 3. 发明授权
    • Printed-wiring board and electronic device
    • 印刷电路板和电子设备
    • US06940023B2
    • 2005-09-06
    • US10894456
    • 2004-07-16
    • Naomi IshizukaEiichi Kono
    • Naomi IshizukaEiichi Kono
    • H05K3/28H05K1/11H05K1/18H05K3/34H05K3/42H05K3/46H05K1/16
    • H05K1/116H05K3/3447H05K3/3463H05K3/429H05K2201/09454H05K2201/09781
    • The present invention provides a board ensuring no peel-off of a wall and a land, even if a part is soldered to the board with lead-free solder. The board 10 is comprised of N (N≧3) layer patterns electrically insulated from one another, and is formed with a through-hole 14 into which an electrode 19 of an electronic part 18 is to be inserted. An external land 15 is formed on a surface of each of the first and N-th layer patterns. An electrically conductive layer 17 is formed on an inner wall of the through-hole 14 such that the electrically conductive layer is electrically connected to the external land 15 of each of the first and N-th layer patterns. The electronic part 18 is fixed in the through-hole 14 with lead-free solder 20 filled in the through-hole 14. At least one internal land 16 extending from the electrically conductive layer 17 is formed in the same layer as a M-th layer pattern (2≦M≦(N−1)). The internal land 16 is not electrically connected to the M-th layer pattern.
    • 本发明提供一种确保墙壁和焊盘不会剥离的板,即使用无铅焊料将部件焊接到板上也是如此。 板10由彼此电绝缘的N(N> = 3)层图案组成,并且形成有通孔14,电子部件18的电极19将被插入到该通孔14中。 在第一和第N层图案中的每一个的表面上形成外部平台15。 导电层17形成在通孔14的内壁上,使得导电层电连接到第一和第N层图案中的每一个的外部焊盘15。 电子部件18通过填充在通孔14中的无铅焊料20固定在通孔14中。 从导电层17延伸的至少一个内部区域16形成在与第M层图案相同的层中(2≤M≤=(N-1))。 内部平台16不与M层图案电连接。