公开(公告)号：US08006377B2

公开(公告)日：2011-08-30

申请号：US12146204

申请日：2008-06-25

Applicant: Honchin En ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

Inventor： Honchin En ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

IPC: H05K3/02 ,  H05K3/10

CPC classification number: C23G1/10 ,  H01L2924/0002 ,  H05K3/0094 ,  H05K3/062 ,  H05K3/067 ,  H05K3/108 ,  H05K3/384 ,  H05K3/385 ,  H05K3/388 ,  H05K3/4602 ,  H05K3/4644 ,  H05K3/4661 ,  H05K2201/0129 ,  H05K2201/0158 ,  H05K2201/0338 ,  H05K2201/09563 ,  H05K2201/0959 ,  H05K2201/096 ,  H05K2203/0307 ,  H05K2203/0315 ,  H05K2203/072 ,  H05K2203/1105 ,  Y10T29/49124 ,  Y10T29/49151 ,  Y10T29/49155 ,  Y10T29/49163 ,  Y10T29/49165 ,  Y10T428/24917 ,  H01L2924/00

Abstract: The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in facture toughness, dielectric constant, adhesion and processability, among other characteristics. The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.

Abstract translation: 本发明的目的在于提供一种多层印刷电路板，其特征在于其具有非常好的韧性，介电常数，粘合性和可加工性。 本发明涉及一种多层印刷电路板，其包括基板，形成在所述基板上的树脂绝缘层和在所述树脂绝缘层上构成的导体电路，其中所述树脂绝缘层包括聚烯烃树脂。

公开(公告)号：US20110206316A1

公开(公告)日：2011-08-25

申请号：US13038421

申请日：2011-03-02

Applicant: Dongdong Wang ,  Zhenhua Shao ,  Xu Huang ,  Masataka Ito ,  Christopher L. Keller

Inventor： Dongdong Wang ,  Zhenhua Shao ,  Xu Huang ,  Masataka Ito ,  Christopher L. Keller

IPC: G02B6/12 ,  H01P11/00

CPC classification number: G02B6/43 ,  G02B6/1221 ,  G02B6/4214 ,  G02B6/4224 ,  H01L25/167 ,  H01L2224/16225 ,  H01L2924/00011 ,  H01L2924/00014 ,  Y10T29/49016 ,  H01L2224/0401

Abstract: An optical interconnect device includes a first substrate, a second substrate, an optical waveguide, an electrical wiring and a switching device. The first substrate has an electrical wiring circuit, an electrical-optical converter for converting an electrical signal to an optical signal, and a light emitting device for emitting a light. The second substrate has an electrical wiring circuit, an optical-electrical converter for converting the optical signal to the electrical signal, and a light receiving device for receiving the light from the light emitted device. The optical waveguide optically connects the light emitting and light receiving devices. The electrical wiring electrically connects the electrical wiring circuits of the first and second substrates. The switching device determines a fast signal of data to be transmitted via the optical substrate and a slow signal of data to be transmitted via the electrical wiring.

公开(公告)号：US20110192637A1

公开(公告)日：2011-08-11

申请号：US13089378

申请日：2011-04-19

Applicant: Motoo ASAI ,  Dongdong Wang ,  Takahiro Mori

Inventor： Motoo ASAI ,  Dongdong Wang ,  Takahiro Mori

IPC: H05K1/03

CPC classification number: H05K3/423 ,  H01L21/486 ,  H01L23/49822 ,  H01L23/49827 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01087 ,  H01L2924/15174 ,  H01L2924/15311 ,  H01L2924/15312 ,  H05K1/036 ,  H05K3/0032 ,  H05K3/0035 ,  H05K3/0038 ,  H05K3/108 ,  H05K3/181 ,  H05K3/381 ,  H05K3/385 ,  H05K3/387 ,  H05K3/388 ,  H05K3/426 ,  H05K3/427 ,  H05K3/4602 ,  H05K2201/0195 ,  H05K2201/0352 ,  H05K2201/0355 ,  H05K2201/0394 ,  H05K2201/09536 ,  H05K2201/09563 ,  H05K2201/0959 ,  H05K2201/096 ,  H05K2201/09736 ,  H05K2201/09881 ,  H05K2203/0315 ,  H05K2203/0733 ,  H05K2203/0773 ,  H05K2203/1476 ,  Y10T29/49126 ,  Y10T29/49144 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2224/05599

Abstract: A multi-layer printed circuit board includes a core structure including resin layers and conductor circuits sandwiched by the resin layers, the core structure having first and second surfaces, a first conductor layer including conductor circuits on the first surface of the core structure, and a second conductor layer including conductor circuits on the second surface of the core structure. The core structure includes first and via holes, and the first and second via holes include a metal filling up to the respective top of openings in the resin layers, respectively, sandwich one or more conductor circuits in the core structure and are positioned vertically to form a through hole electrically connecting respective ones of the conductor circuits of the first and second conductor layers, and the first and second via holes are deviated from each other in a vertical direction.

Abstract translation: 多层印刷电路板包括：包括树脂层的芯结构和被树脂层夹持的导体电路，所述芯结构具有第一和第二表面，在芯结构的第一表面上包括导体电路的第一导体层，以及 第二导体层，包括在芯结构的第二表面上的导体电路。 芯结构包括第一和通孔，并且第一和第二通孔分别包括在树脂层中分别填充到各个开口顶部的金属，将一个或多个导体电路夹在芯结构中并垂直定位以形成 电连接第一和第二导体层的各个导体电路的通孔以及第一和第二通孔在垂直方向上彼此偏离。

公开(公告)号：US07978478B2

公开(公告)日：2011-07-12

申请号：US12033302

申请日：2008-02-19

Applicant: Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

Inventor： Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

IPC: H05K1/18

CPC classification number: H05K1/181 ,  H01L21/4857 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/50 ,  H01L23/642 ,  H01L23/645 ,  H01L24/16 ,  H01L24/17 ,  H01L25/16 ,  H01L25/162 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/13099 ,  H01L2224/16 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2224/82039 ,  H01L2224/82047 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01018 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01023 ,  H01L2924/01025 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01043 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01051 ,  H01L2924/01052 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/07802 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/15312 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/19105 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3511 ,  H05K1/0231 ,  H05K1/185 ,  H05K1/186 ,  H05K1/187 ,  H05K3/4602 ,  H05K3/4611 ,  H05K2201/0187 ,  H05K2201/09509 ,  H05K2201/09536 ,  H05K2201/10636 ,  H05K2201/10674 ,  H05K2203/063 ,  Y02P70/611 ,  Y10T29/435 ,  Y10T29/49117 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2924/00 ,  H01L2224/05599

Abstract: A chip capacitor 20 is provided in a core substrate 30 of a printed circuit board 10. This makes it possible to shorten a distance between an IC chip 90 and the chip capacitor 20 and to reduce loop inductance. Since the core substrate 30 id constituted by provided a first resin substrate 30a, a second resin substrate 30b and a third resin substrate 30c in a multilayer manner, the core substrate 30 can obtain sufficient strength.

公开(公告)号：US07912382B2

公开(公告)日：2011-03-22

申请号：US11857733

申请日：2007-09-19

Applicant: Zhenhua Shao ,  Xu Huang ,  Masataka Ito ,  Dongdong Wang

Inventor： Zhenhua Shao ,  Xu Huang ,  Masataka Ito ,  Dongdong Wang

IPC: H04B10/02 ,  H04B10/06

CPC classification number: H04B10/50

Abstract: An optical-electrical transmitting device for transmitting a signal includes an electrical signal transmitting circuit which divides a transmission signal into a first transmission signal and a second transmission signal, a switching device which is electrically connected to receive and converts the first signal into an identification signal for determining the transmission signal to be one of a fast signal and a slow signal, and a selector which is electrically connected to receive the second transmission signal and the identification signal and outputs the second transmission signal to an optical waveguide when the transmission signal is determined to be the fast signal and an electrical wiring when the transmission signal is determined to be the slow signal, the optical waveguide optically connecting the electrical signal transmitting circuit to an electrical signal receiving circuit, the electrical wiring electrically connecting the electrical signal transmitting circuit to the electrical signal receiving circuit.

Abstract translation: 用于发送信号的光电传输装置包括将发送信号分割为第一发送信号和第二发送信号的电信号发送电路，电连接以将第一信号转换为识别信号的开关装置 用于将发送信号确定为快速信号和慢信号之一;以及选择器，当确定发送信号时，电连接以接收第二发送信号和识别信号并将第二发送信号输出到光波导 当发送信号被确定为慢信号时，作为快速信号和电线，光波导将电信号发送电路光电连接到电信号接收电路，电线将电信号发送电路电连接到 ele 电路信号接收电路。

公开(公告)号：US20110036626A1

公开(公告)日：2011-02-17

申请号：US12913258

申请日：2010-10-27

Applicant: Motoo ASAI ,  Dongdong Wang ,  Takahiro Mori

Inventor： Motoo ASAI ,  Dongdong Wang ,  Takahiro Mori

IPC: H05K1/11

CPC classification number: H05K3/423 ,  H01L21/486 ,  H01L23/49822 ,  H01L23/49827 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/16 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2924/00014 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01087 ,  H01L2924/15174 ,  H01L2924/15311 ,  H01L2924/15312 ,  H05K1/036 ,  H05K3/0032 ,  H05K3/0035 ,  H05K3/0038 ,  H05K3/108 ,  H05K3/181 ,  H05K3/381 ,  H05K3/385 ,  H05K3/387 ,  H05K3/388 ,  H05K3/426 ,  H05K3/427 ,  H05K3/4602 ,  H05K2201/0195 ,  H05K2201/0352 ,  H05K2201/0355 ,  H05K2201/0394 ,  H05K2201/09536 ,  H05K2201/09563 ,  H05K2201/0959 ,  H05K2201/096 ,  H05K2201/09736 ,  H05K2201/09881 ,  H05K2203/0315 ,  H05K2203/0733 ,  H05K2203/0773 ,  H05K2203/1476 ,  Y10T29/49126 ,  Y10T29/49144 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2224/05599

Abstract: A multi-layer printed circuit board including a first insulating layer, a first conductor layer having conductor circuits on one surface of the first insulating layer, a second conductor layer having conductor circuits on the opposite surface of the first insulating layer, a second insulating layer on the second conductor and first insulating layers, and a third conductor layer having conductor circuits on the second insulating layer on the opposite side of the second conductor layer. The first and second insulating layers have first and second via holes which are formed in openings of the first and second insulating layers and made of conductive materials filled to the top of the openings such that conductor circuits in the first and third conductor layers are connected to one or more conductor circuits in the second conductor layer, and the first and second via holes are tapering toward the second conductor layer.

Abstract translation: 一种多层印刷电路板，包括第一绝缘层，在第一绝缘层的一个表面上具有导体电路的第一导体层，在第一绝缘层的相对表面上具有导体电路的第二导体层，第二绝缘层 在第二导体和第一绝缘层上的第二绝缘层和在第二导体层的相对侧的第二绝缘层上具有导体电路的第三导体层。 第一绝缘层和第二绝缘层具有第一和第二通孔，其形成在第一和第二绝缘层的开口中，并由填充到开口顶部的导电材料制成，使得第一和第三导体层中的导体电路连接到 第二导体层中的一个或多个导体电路，以及第一和第二通孔朝向第二导体层逐渐变细。

公开(公告)号：US07864543B2

公开(公告)日：2011-01-04

申请号：US12033455

申请日：2008-02-19

Applicant: Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

Inventor： Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

IPC: H05K1/16

CPC classification number: H05K1/181 ,  H01L21/4857 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/50 ,  H01L23/642 ,  H01L23/645 ,  H01L24/16 ,  H01L24/17 ,  H01L25/16 ,  H01L25/162 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/13099 ,  H01L2224/16 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2224/82039 ,  H01L2224/82047 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01018 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01023 ,  H01L2924/01025 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01043 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01051 ,  H01L2924/01052 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/07802 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/15312 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/19105 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3511 ,  H05K1/0231 ,  H05K1/185 ,  H05K1/186 ,  H05K1/187 ,  H05K3/4602 ,  H05K3/4611 ,  H05K2201/0187 ,  H05K2201/09509 ,  H05K2201/09536 ,  H05K2201/10636 ,  H05K2201/10674 ,  H05K2203/063 ,  Y02P70/611 ,  Y10T29/435 ,  Y10T29/49117 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2924/00 ,  H01L2224/05599

Abstract: A chip capacitor 20 is provided in a core substrate 30 of a printed circuit board 10. This makes it possible to shorten a distance between an IC chip 90 and the chip capacitor 20 and to reduce loop inductance. Since the core substrate 30 is constituted by provided a first resin substrate 30a, a second resin substrate 30b and a third resin substrate 30c in a multilayer manner, the core substrate 30 can obtain sufficient strength.

Abstract translation: 芯片电容器20设置在印刷电路板10的芯基板30中。这使得可以缩短IC芯片90和芯片电容器20之间的距离并减小环路电感。 由于通过以多层方式设置第一树脂基板30a，第二树脂基板30b和第三树脂基板30c来构成芯基板30，所以能够获得足够的强度。

公开(公告)号：US07864542B2

公开(公告)日：2011-01-04

申请号：US11777841

申请日：2007-07-13

Applicant: Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

Inventor： Yasushi Inagaki ,  Motoo Asai ,  Dongdong Wang ,  Hideo Yabashi ,  Seiji Shirai

IPC: H05K1/18

CPC classification number: H05K1/181 ,  H01L21/4857 ,  H01L23/49822 ,  H01L23/49827 ,  H01L23/50 ,  H01L23/642 ,  H01L23/645 ,  H01L24/16 ,  H01L24/17 ,  H01L25/16 ,  H01L25/162 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/13099 ,  H01L2224/16 ,  H01L2224/16225 ,  H01L2224/16235 ,  H01L2224/82039 ,  H01L2224/82047 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01018 ,  H01L2924/01019 ,  H01L2924/0102 ,  H01L2924/01023 ,  H01L2924/01025 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01043 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01051 ,  H01L2924/01052 ,  H01L2924/01058 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/07802 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/15312 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/19105 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3511 ,  H05K1/0231 ,  H05K1/185 ,  H05K1/186 ,  H05K1/187 ,  H05K3/4602 ,  H05K3/4611 ,  H05K2201/0187 ,  H05K2201/09509 ,  H05K2201/09536 ,  H05K2201/10636 ,  H05K2201/10674 ,  H05K2203/063 ,  Y02P70/611 ,  Y10T29/435 ,  Y10T29/49117 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49165 ,  H01L2924/00 ,  H01L2224/05599

Abstract: A chip capacitor 20 is provided in a core substrate 30 of a printed circuit board 10. This makes it possible to shorten a distance between an IC chip 90 and the chip capacitor 20 and to reduce loop inductance. Since the core substrate 30 id constituted by provided a first resin substrate 30a, a second resin substrate 30b and a third resin substrate 30c in a multilayer manner, the core substrate 30 can obtain sufficient strength.

Abstract translation: 芯片电容器20设置在印刷电路板10的芯基板30中。这使得可以缩短IC芯片90和芯片电容器20之间的距离并减小环路电感。 由于通过以多层方式设置第一树脂基板30a，第二树脂基板30b和第三树脂基板30c构成的芯基板30d，芯基板30可以获得足够的强度。

公开(公告)号：US07504719B2

公开(公告)日：2009-03-17

申请号：US11188886

申请日：2005-07-26

Applicant: Honchin En ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

Inventor： Honchin En ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

IPC: H01L23/12 ,  H01L21/4763

CPC classification number: C23G1/10 ,  H01L2924/0002 ,  H05K3/0094 ,  H05K3/062 ,  H05K3/067 ,  H05K3/108 ,  H05K3/384 ,  H05K3/385 ,  H05K3/388 ,  H05K3/4602 ,  H05K3/4644 ,  H05K3/4661 ,  H05K2201/0129 ,  H05K2201/0158 ,  H05K2201/0338 ,  H05K2201/09563 ,  H05K2201/0959 ,  H05K2201/096 ,  H05K2203/0307 ,  H05K2203/0315 ,  H05K2203/072 ,  H05K2203/1105 ,  Y10T29/49124 ,  Y10T29/49151 ,  Y10T29/49155 ,  Y10T29/49163 ,  Y10T29/49165 ,  Y10T428/24917 ,  H01L2924/00

Abstract: The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in facture toughness, dielectric constant, adhesion and processability, among other characteristics. The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.

Abstract translation: 本发明的目的在于提供一种多层印刷电路板，其特征在于其具有非常好的韧性，介电常数，粘合性和可加工性。 本发明涉及一种多层印刷电路板，其包括基板，形成在所述基板上的树脂绝缘层和在所述树脂绝缘层上构成的导体电路，其中所述树脂绝缘层包括聚烯烃树脂。

公开(公告)号：US20080289864A1

公开(公告)日：2008-11-27

申请号：US12146105

申请日：2008-06-25

Applicant: Honchin EN ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

Inventor： Honchin EN ,  Masayuki Hayashi ,  Dongdong Wang ,  Kenichi Shimada ,  Motoo Asai ,  Koji Sekine ,  Tohru Nakai ,  Shinichiro Ichikawa ,  Yukihiko Toyoda

IPC: H05K1/09

CPC classification number: C23G1/10 ,  H01L2924/0002 ,  H05K3/0094 ,  H05K3/062 ,  H05K3/067 ,  H05K3/108 ,  H05K3/384 ,  H05K3/385 ,  H05K3/388 ,  H05K3/4602 ,  H05K3/4644 ,  H05K3/4661 ,  H05K2201/0129 ,  H05K2201/0158 ,  H05K2201/0338 ,  H05K2201/09563 ,  H05K2201/0959 ,  H05K2201/096 ,  H05K2203/0307 ,  H05K2203/0315 ,  H05K2203/072 ,  H05K2203/1105 ,  Y10T29/49124 ,  Y10T29/49151 ,  Y10T29/49155 ,  Y10T29/49163 ,  Y10T29/49165 ,  Y10T428/24917 ,  H01L2924/00

Abstract: The present invention has for its object to provide a multilayer printed circuit board which is very satisfactory in facture toughness, dielectric constant, adhesion and processability, among other characteristics. The present invention is directed to a multilayer printed circuit board comprising a substrate board, a resin insulating layer formed on said board and a conductor circuit constructed on said resin insulating layer, wherein said resin insulating layer comprises a polyolefin resin.