公开(公告)号：US20150342030A1

公开(公告)日：2015-11-26

申请号：US14717456

申请日：2015-05-20

Applicant: FUJIKURA LTD

Inventor： Hirohito WATANABE ,  Taiji OGAWA

IPC: H05K1/02

CPC classification number: H05K1/0216 ,  H01P3/085 ,  H05K1/0225 ,  H05K1/0237 ,  H05K1/025 ,  H05K1/0393 ,  H05K2201/0715 ,  H05K2201/09027 ,  H05K2201/09681 ,  H05K2201/09727

Abstract: To suppress occurrence of a difference in transmission time due to a difference in length between signal lines, there is provided a printed wiring board having: an insulating substrate (10); a first signal line (L31A) that constitutes differential signal lines formed on the insulating substrate (10) and includes a curved portion; a second signal line (L31B) provided along the first signal line (L31A) and side by side inside the curved portion; and a ground layer (30) formed for the first signal line (L31A) and the second signal line (L31B) via an insulating material (10). The ground layer (30) includes a first ground layer (G31A) corresponding to a first region (D1) and a second ground layer (G31B) corresponding to a second region (D2). The first region (D1) is defined based on the first signal line (L31A) and has a first predetermined width (W31A). The second region (D2) is defined based on the second signal line (L31B) and has a second predetermined width (W31B). The first ground layer (G31A) has a remaining ratio lower than a remaining ratio of the second ground layer (G31B).

Abstract translation: 为了抑制由于信号线之间的长度差导致的传输时间差的发生，提供了一种印刷线路板，其具有：绝缘基板（10）; 第一信号线（L31A），其构成形成在绝缘基板（10）上并包括弯曲部分的差分信号线; 沿着第一信号线（L31A）设置并并列在弯曲部分内的第二信号线（L31B）; 以及经由绝缘材料（10）为第一信号线（L31A）和第二信号线（L31B）形成的接地层（30）。 接地层（30）包括对应于第一区域（D1）的第一接地层（G31A）和对应于第二区域（D2）的第二接地层（G31B）。 第一区域（D1）基于第一信号线（L31A）定义并具有第一预定宽度（W31A）。 第二区域（D2）基于第二信号线（L31B）被定义并且具有第二预定宽度（W31B）。 第一接地层（G31A）的剩余比率比第二接地层（G31B）的剩余率低。

公开(公告)号：US20130133931A1

公开(公告)日：2013-05-30

申请号：US13686597

申请日：2012-11-27

Applicant: FUJIKURA LTD.

Inventor： Hirohito WATANABE ,  Akiko OGAWA

IPC: H05K1/02

CPC classification number: H05K1/02 ,  H05K1/0281 ,  H05K2201/2009

Abstract: Provided is a printed wiring board capable of inhibiting a reinforcing plate from peeling off even when a bending radius is small. The printed wiring board includes a wiring board main body, and a reinforcing plate attached to the wiring board main body, the reinforcing plate includes first and second reinforcing portions which are arranged to be mutually spaced apart, and a connecting portion which integrally connects the first reinforcing portion with the second reinforcing portion, and the connecting portion includes a first portion which has a cross-sectional area smaller than a cross-sectional area of the first reinforcing portion and smaller than a cross-sectional area of the second reinforcing portion, and a second portion of which a cross-sectional area increases along a direction from the first portion to at least one of the first reinforcing portion and the second reinforcing portion.

Abstract translation: 提供一种即使弯曲半径小也能够抑制加强板剥离的印刷布线板。 印刷电路板包括布线板主体和安装在布线板主体上的加强板，加强板包括互相间隔布置的第一和第二加强部分，以及连接部分，其将第一 具有第二加强部的加强部，连接部具有截面积小于第一加强部的截面积且小于第二加强部的横截面积的第一部，以及 第二部分的横截面积沿着从第一部分到第一加强部分和第二加强部分中的至少一个的方向增加。

公开(公告)号：US20130133930A1

公开(公告)日：2013-05-30

申请号：US13686562

申请日：2012-11-27

Applicant: FUJIKURA LTD.

Inventor： Hirohito WATANABE

IPC: H05K1/02

CPC classification number: H05K1/0281 ,  H05K1/0271 ,  H05K3/0061 ,  H05K3/0064

Abstract: Provided is a printed wiring board capable of inhibiting a reinforcing plate from peeling off even when a bending radius is small.The printed wiring board includes a wiring board main body which includes a bending subject portion which is to be bent about a bending line, and a reinforcing plate which is attached to the wiring board main body, the reinforcing plate includes first and second reinforcing portions which are attached to first and second adjacent portions which are adjacent to the bending subject portion in the wiring board main body, and a connecting portion which is attached to the bending subject portion and integrally connects the first reinforcing portion with the second reinforcing portion, and an opening is formed in the connecting portion.

Abstract translation: 提供一种即使弯曲半径小也能够抑制加强板剥离的印刷布线板。 印刷布线板包括布线板主体，其包括弯曲对象部分，该弯曲对象部分围绕弯曲线弯曲;以及加强板，其附接到布线板主体，加强板包括第一和第二加强部分， 附接到与布线板主体中的弯曲对象部分相邻的第一和第二相邻部分，以及连接部分，其连接到弯曲对象部分并且将第一加强部分与第二加强部分整体连接， 在连接部分形成开口。

公开(公告)号：US20150340751A1

公开(公告)日：2015-11-26

申请号：US14717280

申请日：2015-05-20

Applicant: FUJIKURA LTD.

Inventor： Hirohito WATANABE ,  Taiji OGAWA

IPC: H05K1/02 ,  H01P3/08 ,  H01P1/02

CPC classification number: H05K1/0225 ,  H01P1/022 ,  H01P3/08 ,  H01P3/085 ,  H05K1/025 ,  H05K1/0393 ,  H05K2201/0715 ,  H05K2201/09027 ,  H05K2201/09681 ,  H05K2201/09727

Abstract: To suppress occurrence of a difference in transmission time due to a difference in length between signal lines, there is provided a printed wiring board having: an insulating substrate (10); a first signal line (L31) formed on the insulating substrate (10); a second signal line (L32) having a shorter length than that of the first signal line (L31); and a ground layer (30) formed for the first signal line (L31) and the second signal line (L31) via an insulating material (10). The ground layer (30) includes a first ground layer (G31) corresponding to a first region (D1) and a second ground layer (G32) corresponding to a second region (D2). The first region (D1) is defined based on the first signal line (L31) and has a first predetermined width (W31). The second region (D2) is defined based on the second signal line (L32) and has a second predetermined width (W32). The first ground layer (G31) has a remaining ratio lower than a remaining ratio of the second ground layer (G32).

Abstract translation: 为了抑制由于信号线之间的长度差导致的传输时间差的发生，提供了一种印刷线路板，其具有：绝缘基板（10）; 形成在所述绝缘基板（10）上的第一信号线（L31）。 具有比第一信号线（L31）短的长度的第二信号线（L32）; 和经由绝缘材料（10）形成的第一信号线（L31）和第二信号线（L31）的接地层（30）。 接地层（30）包括对应于第一区域（D1）的第一接地层（G31）和对应于第二区域（D2）的第二接地层（G32）。 第一区域（D1）基于第一信号线（L31）定义并具有第一预定宽度（W31）。 第二区域（D2）基于第二信号线（L32）定义并具有第二预定宽度（W32）。 第一接地层（G31）的剩余比率比第二接地层（G32）的剩余率低。