JP2017118109A - 基板 - Google Patents
基板 Download PDFInfo
- Publication number
- JP2017118109A JP2017118109A JP2016242164A JP2016242164A JP2017118109A JP 2017118109 A JP2017118109 A JP 2017118109A JP 2016242164 A JP2016242164 A JP 2016242164A JP 2016242164 A JP2016242164 A JP 2016242164A JP 2017118109 A JP2017118109 A JP 2017118109A
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- Prior art keywords
- stretchable
- fiber
- strips
- substrate according
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B32B2307/202—Conductive
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
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- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
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- B32B2457/00—Electrical equipment
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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
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- H05K1/18—Printed circuits structurally associated with non-printed electric components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05K2201/01—Dielectrics
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- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
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- H05K2201/029—Woven fibrous reinforcement or textile
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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
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- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09218—Conductive traces
- H05K2201/09227—Layout details of a plurality of traces, e.g. escape layout for Ball Grid Array [BGA] mounting
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- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09945—Universal aspects, e.g. universal inner layers or via grid, or anisotropic interposer
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Abstract
Description
(1)従来のフレキシブル基板では、フレキシブル基板の延在方向に伸縮可能であるものの、当該延在方向と異なる方向には伸縮しにくい。それゆえ、市場のニーズに応える程の十分な伸縮性が呈され難い。
(2)従来のフレキシブル基板では、高い伸縮性を確保することと、伸張による配線の破断を防止することを両立することが難しい。
(3)従来の導電性糸を織り込んだ織物は、配線抵抗の安定性を確保することが難しい。
(4)従来の導電性糸を織り込んだ織物は、電子部品の実装において信頼性を確保することが難しい。
(1)渦巻き状の伸縮ストリップ10Bの湾曲部は、蛇行状の伸縮ストリップ10Bの湾曲部よりも、大きな曲率半径で湾曲する。これにより、伸縮ストリップ10Bのゆとり長さをより大きく取ることができる。
(2)渦巻き状の伸縮ストリップ10Bは、渦巻きがほどけるように変位するため、この変位が伸縮ストリップの伸長を助力し得る。
図10Aは、伸縮性フレキシブル基板100の第1の変形例を示し、図10Bは、図10Aに示される非伸縮部10A付近の断面を示す。第1の変形例において、非伸縮部10Aの導電配線16は導電パッドであり、繊維糸70は、この導電パッドを通っている。導電パッドが比較的固い金属で構成される場合、繊維糸70による縫いつけを容易に行うことができる。
10A 非伸縮部
10B 伸縮ストリップ
12 絶縁基材
16 導電配線
17 開口部
50 基材
70 繊維糸
70A 裏面電極
80 電子部品
100 伸縮性フレキシブル基板
Claims (19)
- 伸縮可能なシートと、
前記シート上に配置された複数の非伸縮部材と、
前記複数の非伸縮部材の間を接続する、伸縮可能な複数のストリップと、
前記複数の非伸縮部材と前記シートとを縫い付ける複数の繊維糸と、を備える、
基板。 - 前記複数の非伸縮部材のうちの1つを第1の非伸縮部材とし、
前記複数のストリップのうち、前記第1の非伸縮部材に接続されている少なくとも2つを複数の第1のストリップとし、
前記複数の繊維糸のうち、前記第1の非伸縮部材と前記シートを縫い付ける1つを第1の繊維糸とするとき、
前記複数の第1のストリップは、前記第1の繊維糸を中心として、回転対称に配置される、
請求項1に記載の基板。 - 前記複数の非伸縮部材のうちの1つを第1の非伸縮部材とし、
前記複数のストリップのうち、前記第1の非伸縮部材に接続されている少なくとも2つを複数の第1のストリップとし、
前記複数の繊維糸のうち、前記第1の非伸縮部材と前記シートを縫い付ける1つを第1の繊維糸とするとき、
前記第1の非伸縮部材は、前記複数の第1のストリップが伸縮するときに、前記第1の繊維糸を中心に回転する、
請求項1に記載の基板。 - 前記第1の繊維糸は、前記第1の非伸縮部材の主面に垂直な方向から見たときに、前記第1の繊維糸が前記第1の非伸縮部材を通過する位置が、前記第1の繊維糸が前記シートを通過する位置からずれることを許容する、
請求項2に記載の基板。 - 前記複数の繊維糸のそれぞれは、伸縮可能である、
請求項1から4のいずれか一項に記載の基板。 - 前記複数の繊維糸のそれぞれは、導電性を有する、
請求項1から5のいずれか一項に記載の基板。 - 前記複数の繊維糸のそれぞれは、撚糸である、
請求項1から6のいずれか一項に記載の基板。 - 前記複数のストリップのそれぞれは、湾曲している、
請求項1から7のいずれか一項に記載の基板。 - 前記複数のストリップのそれぞれは、蛇行している、
請求項8に記載の基板。 - 前記複数の第1のストリップのそれぞれは、前記第1の非伸縮部材を半周以上囲む渦巻き形状を有する、
請求項8に記載の基板。 - 前記複数の非伸縮部材のそれぞれは、導電層を含む平板である、
請求項1から10のいずれか一項に記載の基板。 - 前記複数の繊維糸のそれぞれは、導電性を有し、
前記複数の繊維糸のそれぞれは、前記複数の非伸縮部材のうちの対応する1つの前記導電層を通過する、
請求項11に記載の基板。 - 前記複数のストリップのそれぞれは、導電配線を含む、
請求項1から12のいずれか一項に記載の基板。 - 前記複数のストリップのそれぞれは、絶縁性部材をさらに含む、
請求項13に記載の基板。 - 前記シートは、繊維布を含む、
請求項1から14のいずれか一項に記載の基板。 - 前記繊維布は、ニット構造を有する、
請求項15に記載の基板。 - 前記繊維布は、ネット構造を有する、
請求項15に記載の基板。 - 前記繊維布は、エラストマーをさらに含む、
請求項15から17のいずれか一項に記載の基板。 - 前記複数の非伸張部材の少なくとも1つの上にそれぞれ配置された少なくとも1つの電子部品をさらに備える、
請求項1から18のいずれか一項に記載の基板。
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