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公开(公告)号：US5291419A
公开(公告)日：1994-03-01
申请号：US938517
申请日：1992-01-06
申请人： Ryohei Satoh , Katsuhiro Arakawa , Kiyoshi Kanai , Tsutomu Takahashi , Takaji Takenaka , Haruhiko Imada
发明人： Ryohei Satoh , Katsuhiro Arakawa , Kiyoshi Kanai , Tsutomu Takahashi , Takaji Takenaka , Haruhiko Imada
CPC分类号： G01N3/00 , G01N3/32 , G01N3/60 , G01N2203/0224 , G01N2203/0296
摘要： A method for evaluating the life of a connection between members including the steps of extracting parameters defining the shearing strain of a predetermined model representing the connection thereby to calculate the values of plural shearing strains of the connection, calculating the equivalent strain amplitude corresponding to thermal fatigue stress for each of the values of the plural shearing strains defining the relationship between the shearing strain and the equivalent strain amplitude, formulating a life evaluation criterion equation expressed using the equivalent strain amplitude, calculating, for the connection, the equivalent strain amplitude corresponding to each of the shearing strains actually measured using the equation, and substituting the equivalent strain amplitude for the life evaluation criterion equation to acquire the life of the connection. Further, in this method, an equation for evaluating the advancement of a crack is made using the equivalent strain amplitude, and the equivalent is substituted for the crack advancement evaluation equation to calculate the length of the crack.
摘要翻译： 一种用于评估构件之间的连接寿命的方法，包括提取定义表示连接的预定模型的剪切应变的参数的步骤，从而计算连接的多个剪切应变值，计算对应于热疲劳的等效应变幅度 制定剪切应变与等效应变幅度之间的关系的多个剪切应变中的每个值的应力，制定使用等效应变振幅表示的寿命评估标准方程，为连接计算对应于每个剪切应变的等效应变幅度 的剪切应变使用等式实际测量，并将等效应变幅度代入寿命评估标准方程来获得连接的寿命。 此外，在该方法中，使用等效应变振幅来进行用于评价裂纹的推进的方程，并且将等效物代入裂纹推进评价方程式来计算裂纹的长度。
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公开(公告)号：US4706165A
公开(公告)日：1987-11-10
申请号：US918918
申请日：1986-10-15
申请人： Takaji Takenaka , Hideki Watanabe , Haruhiko Imada
发明人： Takaji Takenaka , Hideki Watanabe , Haruhiko Imada
CPC分类号： H01L23/5382 , H01L2224/16225 , H01L2924/15192 , H01L2924/15312 , H01L2924/19107 , H05K1/0286
摘要： In a multilayer circuit board wherein a plurality of electronic parts are provided on a first principal plane, a plurality of brazing pads for pins are respectively arranged on a second principal plane and a plurality of wiring layers having wiring nets for connecting said electrical parts are formed between these principal planes. The EC pads for I/O leads for connecting discrete wires is provided to said first principal plane. EC pads are provided on said second principal plane and are connected to the brazing pads for pins in such a manner as to be electrically separable as required. The EC pads for I/O leads and the brazing pads for pins are connected through the interior of the multilayer circuit board and the EC pads are connected to the wiring net through the interior of the multilayer circuit board.
摘要翻译： 在第一主平面上设置有多个电子部件的多层电路基板中，在第二主面上分别配置有用于引脚的多个焊接焊盘，并且形成具有用于连接所述电气部件的布线网的多个布线层 在这些主飞机之间。 用于连接分立导线的I / O引线的EC焊盘提供给所述第一主平面。 EC垫设置在所述第二主平面上，并且以根据需要可电分离的方式连接到销的钎焊垫。 用于I / O引线的EC焊盘和引脚的钎焊焊盘通过多层电路板的内部连接，EC焊盘通过多层电路板的内部连接到接线网。
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公开(公告)号：US5761253A
公开(公告)日：1998-06-02
申请号：US268410
申请日：1994-06-30
申请人： Yuzuru Fujita , Haruhiko Imada , Seiichi Kawashima
发明人： Yuzuru Fujita , Haruhiko Imada , Seiichi Kawashima
CPC分类号： H04J3/0682
摘要： A method and an apparatus for enabling a data signal to be transmitted stably at high speed over long distances without using thicker cables and without increasing physical quantities of such resources as transmitting-receiving circuit elements are disclosed. On the transmitting side, the phase of a clock signal relative to the data signal is modified in accordance with the distance between the transmitting and the receiving sides, the clock signal being transmitted along with the data signal. On the receiving side, the incoming data signal is received in synchronism with the received clock signal.
摘要翻译： 一种方法和装置，用于使数据信号能够在不使用较粗的电缆的情况下以高速稳定地传输，而不增加诸如发射 - 接收电路元件的资源的物理量。 在发送侧，相对于数据信号的时钟信号的相位根据发送侧和接收侧之间的距离被修改，时钟信号与数据信号一起发送。 在接收侧，与所接收的时钟信号同步接收输入数据信号。
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