JP6996976B2 - プリント回路基板のための高速インターコネクト - Google Patents
プリント回路基板のための高速インターコネクト Download PDFInfo
- Publication number
- JP6996976B2 JP6996976B2 JP2017532136A JP2017532136A JP6996976B2 JP 6996976 B2 JP6996976 B2 JP 6996976B2 JP 2017532136 A JP2017532136 A JP 2017532136A JP 2017532136 A JP2017532136 A JP 2017532136A JP 6996976 B2 JP6996976 B2 JP 6996976B2
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- Japan
- Prior art keywords
- region
- printed circuit
- circuit board
- conductive
- insulating layer
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0242—Structural details of individual signal conductors, e.g. related to the skin effect
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
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- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
- H05K1/0298—Multilayer circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
- H05K1/116—Lands, clearance holes or other lay-out details concerning the surrounding of a via
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/388—Improvement of the adhesion between the insulating substrate and the metal by the use of a metallic or inorganic thin film adhesion layer
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/389—Improvement of the adhesion between the insulating substrate and the metal by the use of a coupling agent, e.g. silane
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4626—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials
- H05K3/4632—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating thermoplastic or uncured resin sheets comprising printed circuits without added adhesive materials between the sheets
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4685—Manufacturing of cross-over conductors
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/0326—Organic insulating material consisting of one material containing O
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/034—Organic insulating material consisting of one material containing halogen
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/0346—Organic insulating material consisting of one material containing N
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0145—Polyester, e.g. polyethylene terephthalate [PET], polyethylene naphthalate [PEN]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/015—Fluoropolymer, e.g. polytetrafluoroethylene [PTFE]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0137—Materials
- H05K2201/0154—Polyimide
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
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- H05K2201/0158—Polyalkene or polyolefin, e.g. polyethylene [PE], polypropylene [PP]
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0212—Resin particles
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/03—Metal processing
- H05K2203/0307—Providing micro- or nanometer scale roughness on a metal surface, e.g. by plating of nodules or dendrites
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1194—Thermal treatment leading to a different chemical state of a material, e.g. annealing for stress-relief, aging
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
- H05K3/202—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using self-supporting metal foil pattern
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/383—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by microetching
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/384—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by plating
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/385—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by conversion of the surface of the metal, e.g. by oxidation, whether or not followed by reaction or removal of the converted layer
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4652—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern
- H05K3/4658—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern characterized by laminating a prefabricated metal foil pattern, e.g. by transfer
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Description
本発明者らは、高速データレートをサポートすることができるプリント回路基板のニーズを認識し、高速導電性インターコネクト、およびPCB上にインターコネクトを形成する方法を考え出した。本発明者らは、いくつかの導電性フィルム、および導電性フィルムの接合性を向上させるために従来の表面処理が施されたフィルムは、PCB上のすべてのパターン化されたインターコネクトおよび他の特徴にわたって延在するかなりの大きさの表面粗さを有することを認識した。本発明者らは、この粗さが高いデータレートにおける望ましくない散乱損失をもたらし、信号伝送を妨げると仮定した。従って、本発明者らは、向上された信号伝送のため、(回路トレースまたはトレースに隣接する接地面等の)インターコネクトの少なくとも一部に滑らかな表面領域を有するとともに、PCBの絶縁層への接着性を向上させるパッドおよび他の特徴の少なくとも一つにおける接合処理領域を有する高速PCBインターコネクトを形成するプロセスについて改善を行った。本発明者らは、いくつかの実施形態において、インターコネクトのすべての面に粗面が含まれる同様のPCB構造と比較して、高速インターコネクトを介したdBの信号損失を20%も低減できることを見出した。例えば、従来技術において30dBの減衰があったトレースは、20%の改善により24dBの損失しか示さなくなり、電力伝送において4倍の改善をもたらすことができる。本発明者らはまた、高速インターコネクトが、従来30Gb/sまでのNRZデータレートをサポートしていたPCB構造に対して、40Gb/sよりも高く、60Gb/sまでのNRZデータレートをサポートできることも見出した。いくつかの場合において、高速インターコネクトは、従来30Gb/sまでのNRZデータレートをサポートしていたPCB構造に対して、60Gb/sよりも高いNRZデータレートをサポートする。
本願は様々な実施形態および実施例に関連して説明されてきたが、本願がそのような実施形態または実施例に限定されることは意図していない。反対に、本願は当業者に理解されるであろうように、様々な代替物、変形物、および均等物を包含する。
Claims (34)
- 第一絶縁層と、
第二絶縁層と、
前記第一絶縁層に隣接する第一表面と、前記第一表面の反対側の前記第二絶縁層に隣接する第二表面とを含む導電性インターコネクトとを含み、前記第一表面の少なくとも第一領域は、前記第一絶縁層に対して前記第一表面の第二領域よりも強い接着性を示し、
前記導電性インターコネクトはトレースと、前記トレースに取り付けられたパッドとを備え、
前記トレースは、前記第一表面に対応する表面を有し、
前記トレースの前記表面の50%~100%に相当する部分は前記第一絶縁層に対して前記第一領域よりも弱い接着性を示し、
前記パッドは、前記トレースの幅よりも広い幅を有する導電性領域を含むとともに、前記導電性領域に穴を有し、
前記第一領域は前記パッドに形成されている硬質なプリント回路基板。 - 請求項1に記載の硬質なプリント回路基板において、前記第一領域は化学的接着促進剤を含む硬質なプリント回路基板。
- 請求項1に記載の硬質なプリント回路基板において、前記第一領域は、前記第一絶縁層の硬化形態に対して前記導電性インターコネクトよりも強い接着性を提供する、前記導電性インターコネクトと前記第一絶縁層との間の一つ以上の材料堆積を含む硬質なプリント回路基板。
- 請求項1に記載の硬質なプリント回路基板において、前記第一領域は、前記第二領域の第二表面粗さよりも大きい第一表面粗さを有する硬質なプリント回路基板。
- 請求項4に記載の硬質なプリント回路基板において、前記導電性インターコネクトは圧延された金属箔または圧延アニールの金属箔から形成される硬質なプリント回路基板。
- 請求項5に記載の硬質なプリント回路基板において、前記金属箔は銅を含む硬質なプリント回路基板。
- 請求項4に記載の硬質なプリント回路基板において、前記第二領域は前記導電性インターコネクトの前記トレースを横切って延在し、前記第一領域は前記トレースに取り付けられたパッドを横切って延在し、前記第一領域および前記第二領域の間の遷移は、前記トレースと前記導電性インターコネクトの前記パッドとの間の接合部で生じる硬質なプリント回路基板。
- 請求項7に記載の硬質なプリント回路基板において、前記第一領域および前記第二領域の間の遷移は、前記接合部の2mm以内で生じる硬質なプリント回路基板。
- 請求項4に記載の硬質なプリント回路基板において、前記第一表面粗さは前記第一領域にわたって測定された平均ピークピーク値であり、前記第二表面粗さは前記第二領域にわたって測定された平均ピークピーク値である硬質なプリント回路基板。
- 請求項9に記載の硬質なプリント回路基板において、前記第一領域は0.25mm~1.0mmの横方向寸法を有し、前記第二領域は100μm~300μmの横方向寸法を有し、前記第一表面粗さは前記第二表面粗さよりも少なくとも25%大きい硬質なプリント回路基板。
- 請求項4に記載の硬質なプリント回路基板において、前記第一絶縁層に隣接する第三表面を有する導電性基準面をさらに含み、前記第三表面は前記第一表面粗さにほぼ等しい第三粗さを有する硬質なプリント回路基板。
- 請求項1に記載の硬質なプリント回路基板において、前記導電性インターコネクトは、25dB未満の損失で40Gb/s~60Gb/sのNRZデータ伝送速度をサポートする硬質なプリント回路基板。
- 請求項1に記載の硬質なプリント回路基板において、前記第一絶縁層および前記第二絶縁層の一方または両方の内部に補強用の充填材料をさらに含む硬質なプリント回路基板。
- 硬質なプリント回路基板を製造する方法において、前記方法は、
ラミネート上の導電性フィルムにおいて、複数の第一表面を有する複数の導電性インターコネクトをパターン化する工程であって、前記導電性フィルムは導電性インターコネクトの領域にわたって1.5μm~3μmの平均ピークピーク表面粗さを有する工程と、
前記第一表面の少なくとも第一部分を、前記プリント回路基板の絶縁層に対する前記第一部分の接着性を向上させるように処理する工程とを含み、
前記複数の導電性インターコネクトは、一つまたは複数の処理された第一部分を有する少なくとも一つの導電性インターコネクトを備え、前記複数の導電性インターコネクトのうち、前記一つまたは複数の処理された第一部分を有さない部分は、前記複数の導電性インターコネクトの前記第一表面の50%~100%に相当し、
前記少なくとも一つの導電性インターコネクトは、パッドに取り付けられたトレースを含み、前記パッドは、前記トレースの幅よりも広い幅を有し、かつ処理された第一部分を備える方法。 - 請求項14に記載の方法において、前記処理する工程は、前記第一部分に化学的接着促進剤を適用することを含む方法。
- 請求項14に記載の方法において、前記処理する工程は、未処理部分と比較して、前記絶縁層の硬化形態に対する前記第一部分の接着性を向上させる少なくとも一つの材料を前記第一部分上に形成することを含む方法。
- 請求項14に記載の方法において、前記処理する工程は、前記第一部分に対してエッチング、酸化、メッキ、または研磨を行うことにより前記第一部分の表面を粗面化する工程を含む方法。
- 請求項14に記載の方法において、前記導電性インターコネクトの未処理部分は、前記導電性インターコネクトの前記トレースの長さの50%~100%を構成する方法。
- 硬質なプリント回路基板であって、
絶縁層と、
前記絶縁層に隣接する圧延金属フィルムから形成された複数のインターコネクトと、
前記絶縁層内に配置されて、前記プリント回路基板を補強する補強用の充填材料とを含み、
前記インターコネクトは、トレースと、前記トレースに取り付けられたパッドとを備え、
前記インターコネクトは、前記圧延金属フィルムの表面が粗面化された領域を前記パッドに含み、前記領域は、前記絶縁層に対して前記領域の外側よりも強い接着性を示すように前記圧延金属フィルムの表面が粗面化されており、前記インターコネクトのうち、前記領域の外側の部分は、前記インターコネクトの表面の50%~100%に相当し、
前記パッドは、前記トレースの幅よりも広い幅を有する導電性領域を含むとともに、前記導電性領域に穴を有する硬質なプリント回路基板。 - 請求項19に記載の硬質なプリント回路基板において、前記圧延金属フィルムは銅を含む硬質なプリント回路基板。
- 請求項19に記載の硬質なプリント回路基板において、
複数の前記インターコネクトの各々は、第一領域を有する回路トレースを含み、
複数の前記インターコネクトの少なくともいくつかは、前記第一領域と比較して、前記絶縁層に対する接着性を向上させるように処理された第二領域を含む硬質なプリント回路基板。 - 請求項21に記載の硬質なプリント回路基板において、前記第一領域は、前記第二領域の第二表面粗さよりも小さい第一表面粗さを有する硬質なプリント回路基板。
- 請求項21に記載の硬質なプリント回路基板において、前記第二領域は、前記第一領域には存在しない化学的接着促進剤を含む硬質なプリント回路基板。
- 請求項21に記載の硬質なプリント回路基板において、前記第一領域および前記第二領域は化学的接着促進剤を含む硬質なプリント回路基板。
- プリント回路基板であって、前記プリント回路基板の第一レベルで導電性フィルムから形成された導電性要素を有するプリント回路基板と、
前記導電性要素の第一表面に隣接する第一絶縁層と、
前記導電性要素の第二表面に隣接するとともに、前記第一表面の反対側の第二絶縁層と、
前記導電性要素の前記第一表面にわたって分布された第一処理表面領域とを含み、前記第一絶縁層および前記第二絶縁層は補強用の充填材料を備え、前記第一処理表面領域は、前記第一表面の未処理領域と比較して、前記第一絶縁層への向上された接着性を示し、
前記第一処理表面領域を有する前記導電性要素は、トレースと、前記トレースに取り付けられたパッドとを含み、
前記トレースは、前記第一表面に対応する表面を有し、
前記トレースの前記表面の50%~100%に相当する部分は、一つ以上の未処理領域により構成されており、
前記パッドは、前記トレースの幅よりも広い幅を有する導電性領域を含むとともに、前記導電性領域に穴を有し、
前記第一処理表面領域の領域は前記パッドにある硬質な高速回路。 - 請求項25に記載の硬質な高速回路において、前記第一処理表面領域は、前記未処理領域には存在しない化学的接着促進剤を含む硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記第一処理表面領域は、前記第一絶縁層の硬化形態に対する前記第一処理表面領域の接着性を向上させる一つ以上の材料堆積を含み、一つ以上の前記材料堆積は前記未処理領域には存在しない硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記第一処理表面領域は、前記導電性フィルムを通して延在するとともに、絶縁材料で充填された一つ以上の穴を含む硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記第一処理表面領域は、前記第一表面の前記未処理領域の第二表面粗さよりも大きい第一表面粗さを有する硬質な高速回路。
- 請求項29に記載の硬質な高速回路において、前記第二表面粗さは前記第一表面粗さよりも少なくとも25%小さい硬質な高速回路。
- 請求項29に記載の硬質な高速回路において、前記第一表面粗さは第一表面領域のいずれかの箇所で測定された平均ピークピーク値であり、前記第二表面粗さは前記未処理領域のいずれかの箇所で測定された平均ピークピーク値である硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記第一絶縁層および前記第二絶縁層の一方または両方は、1GHz~12GHzの印加周波数で4.0未満の誘電率および0.0035未満の誘電正接を有する硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記導電性要素は60Gb/sまでのNRZデータ伝送速度をサポートする硬質な高速回路。
- 請求項25に記載の硬質な高速回路において、前記導電性要素は、前記第一レベルで接地面または他の電位基準面を含む硬質な高速回路。
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