JP2009170891A - リジッドプリント回路板用の改良された絶縁層 - Google Patents
リジッドプリント回路板用の改良された絶縁層 Download PDFInfo
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- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
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- H05K2201/03—Conductive materials
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- H05K2203/01—Tools for processing; Objects used during processing
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- H05K2203/0152—Temporary metallic carrier, e.g. for transferring material
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- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1536—Temporarily stacked PCBs
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- 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
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- 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
- H05K3/4655—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern by using a laminate characterized by the insulating layer
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- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
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- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Abstract
【解決手段】とりわけPCBのキャップ層に欠陥が生じることを最小化するように構成された耐歪み層を備える。
【選択図】図4
Description
本願は、2007年12月7日出願の米国仮出願第61/012392号の優先権を主張する。また、本願は、2007年12月21日出願の米国仮出願第61/016292号及び2008年7月3日出願の米国仮出願第61/078315号の優先権を主張し、これらの開示は全て参照として本願に組み込まれる。
〈A.非限定的な実施形態の一般的な説明〉
〈B.非限定的な実施形態の詳細な説明〉
〈C.耐歪み物質及び物質特性〉
Temp FR‐4)よりも安定である。何故ならば、低いCTE X,Y値を有する物質は一般的に、温度変化に対して反応(例えば、伸縮等)し難いからである。例えば、図8は、Tg以上でのポリイミドに対するCTE X,Yが略20ppm(百万分の一)/℃と42ppm/℃との範囲内であることを示し、略20ppm/℃、25ppm/℃、30ppm/℃、35ppm/℃、38ppm/℃、39ppm/℃、40ppm/℃、41ppm/℃、42ppm/℃のCTE X,Yが挙げられる。対照的に、FR‐4は140ppm/℃のより高いCTE X,Yを有し、High‐Temp FR‐4は45ppm/℃のより高いCTE X,Yを有する。よって、ポリイミドを備えた耐歪み層は、同じ様な温度環境下においてリジッドキャップ層等の他の絶縁層よりも膨張することが無く、従って、耐歪み層は、PCBの多様な部品(キャップ層を含む)に対して応力を印加する熱的な力を減じることができる。
〈D.更なる非限定的な実施形態の詳細な説明〉
120 表面導電層
123 回路パターン
125 絶縁層
130 導電性内部層
135 絶縁性内部層
200 PCB
250 ビアホール
265 導電板
299 パッド
300 PCB
305 導電チップパッド
307 はんだ物質
308 電気部品
320 導電パッド
325 絶縁層
330 コネクタ
340 ビアホール
370 クレーター
400 PCB
450 耐歪み層
500 PCB
550 耐歪み層
Claims (36)
- プリント回路板を備えた、電気部品実装用の装置であって、
前記プリント回路板が、
前記電気部品と接合するように構成された表面導電層であって、圧延アニール銅を備えた表面導電層と;
前記表面導電層に係合するように構成された耐歪みキャップ層であって、ポリイミドを備えた耐歪みキャップ層と;
一つ以上のリジッド絶縁層とを備え、
前記一つ以上のリジッド絶縁層の少なくとも一つが前記プリント回路板の全長にわたって延在していて、前記プリント回路板がリジッドプリント回路板を規定している、装置。 - 前記耐歪みキャップ層が、少なくとも略15%の延性と、少なくとも略220℃のTgと、少なくとも略10000psiの引張強度とから成る群から選択された特性の少なくとも二つを有する、請求項1に記載の装置。
- 前記耐歪みキャップ層が、完全硬化と、実質的に無ハロゲンと、非ガラス補強と、実質的に無鉛と、実質的に無ガラス繊維とから成る群から選択された特性の少なくとも一つを有する、請求項1記載の装置。
- 前記耐歪みキャップ層が略25ppm/℃以下のCTE X,Y値を有する、請求項1記載の装置。
- 前記耐歪みキャップ層が略10〜30マイクロメートルの範囲の厚さを有する、請求項1記載の装置。
- リジッドプリント回路板を製造するための部品であって、
第一表面及び第二表面を有する導電層と;
第一表面を有する廃棄可能層であって、該廃棄可能層の第一表面が前記導電層の第一表面に取り付けられている、廃棄可能層と;
第一表面を有する耐歪み層であって、該耐歪み層の第一表面が前記導電層の第二表面に取り付けられている、耐歪み層とを備え、
前記耐歪み層が、少なくとも略15%の延性と、少なくとも略220℃のTgと、少なくとも10000psiの引張強度とから成る群から選択された特性の少なくとも二つを有する、部品。 - 前記廃棄可能層が第二表面を有し、
第一表面及び第二表面を有する第二導電層であって、該第二導電層の第一表面が前記廃棄可能層の第二表面に取り付けられている、第二導電層と;
第一表面を有する第二耐歪み層であって、該第二耐歪み層の第一表面が前記第二導電層の第二表面に取り付けられている、第二耐歪み層とを更に備えた請求項6に記載の部品。 - 前記導電層が銅を備える、請求項6に記載の部品。
- 前記導電層が圧延アニール銅を備える、請求項6に記載の部品。
- 前記導電層が電着銅を備える、請求項6に記載の部品。
- 前記廃棄可能層がアルミニウムを備える、請求項6に記載の部品。
- 前記耐歪み層がポリイミドを備える、請求項6に記載の部品。
- 前記第二耐歪み層が、略20〜80%の範囲の延性と、略220〜420℃の範囲のTgと、略10000〜50000psiの範囲の引張強度と、略40ppm/℃以下のCTE X,Yとの特性の少なくとも二つを有する、請求項7に記載の部品。
- 前記耐歪み層が、完全硬化と、実質的に無ハロゲンと、非ガラス補強と、実質的に無鉛と、実質的に無ガラス繊維とから成る群から選択された特性の少なくとも一つを有する、請求項6に記載の部品。
- プリント回路板の製造方法であって、
導電層の第一表面に係合する耐歪みキャップ層の第一表面を有する部品を提供する段階と、
前記部品を積層体に取り付ける段階とを備え、
前記耐歪みキャップ層がポリイミドを備え、
前記積層体が、リジッドプリント回路板を製造するためのリジッド部分を規定するように配置された一つ以上のリジッド絶縁層を備え、
前記一つ以上のリジッド絶縁層の少なくとも一つが、その上に形成された回路パターンを備える、方法。 - 前記部品を提供する段階が、前記導電層の第二表面に係合する廃棄可能層を提供する段階を更に備える、請求項15に記載の方法。
- 前記部品を積層体に取り付ける段階が、前記耐歪みキャップ層の第二表面を前記積層体に取り付ける段階を備える、請求項16に記載の方法。
- 前記廃棄可能層を前記部品から解放する段階を更に備え、
前記導電層の第二表面が表面導電層となる、請求項17に記載の方法。 - 前記リジッドプリント回路板上に電子装置を実装して、リジッドプリント回路板アセンブリを形成する段階を更に備えた請求項15に記載の方法。
- 前記導電層が圧延アニール銅を備える、請求項15に記載の方法。
- 前記導電層が電着銅を備える、請求項15に記載の方法。
- 前記部品を提供する段階が、略20〜80%の範囲の延性と、略220〜420℃の範囲のTgと、略10000〜50000psiの範囲の引張強度との特性の少なくとも二つを有する前記耐歪みキャップ層を提供する段階を備える、請求項15に記載の方法。
- 前記部品を提供する段階が、ハロゲンとガラス繊維と鉛とから成る群から選択された物質を実質的に有さない前記耐歪みキャップ層を提供する段階を備える、請求項15に記載の方法。
- 前記部品を提供する段階が完全に硬化される、請求項15に記載の方法。
- 前記部品が、前記導電層及び前記耐歪みキャップ層のプレ形成層を備える、請求項15に記載の方法。
- 前記部品を提供する段階が、キャスト・ツー・ホイル工程と、蒸着工程と、スパッタリング工程と、メッキ工程との内の一つを用いて、前記導電層を前記耐歪みキャップ層に付着させる段階を備える、請求項15に記載の方法。
- プリント回路板であって、
前記プリント回路板上に実装される電気部品と接合するように構成された導電層と;
前記導電層に係合するキャップ層を規定し、また、前記導電層の下で欠陥が生じることに耐えるように構成された耐歪み層と;
前記プリント回路板の全長にわたって延在する少なくとも一つのリジッド絶縁層とを備え、
前記耐歪み層が、少なくとも15%の延性及び少なくとも10000psiの引張強度を有し、
前記プリント回路板全体が実質的にリジッド部分を有する、プリント回路板。 - 前記耐歪み層が略20〜40ppm/℃の範囲のCTE X,Yを有する、請求項27に記載のプリント回路板。
- 前記耐歪み層が略10000〜50000psiの範囲の引張強度を有する、請求項27に記載のプリント回路板。
- 前記耐歪み層が略20〜40%の範囲の延性を有する、請求項27に記載のプリント回路板。
- 前記耐歪み層がポリイミドを備える、請求項27に記載のプリント回路板。
- 一つ以上の導電性内部層を更に備えた請求項27に記載のプリント回路板。
- 前記導電層が銅を備える、請求項27に記載のプリント回路板。
- 前記導電層が圧延アニール銅を備える、請求項27に記載のプリント回路板。
- 前記導電層が電着銅を備える、請求項27に記載のプリント回路板。
- 前記耐歪みキャップ層が、完全硬化と、実質的に無ハロゲンと、非ガラス補強と、実質的に無鉛と、実質的に無ガラス繊維とから成る群から選択された特性の少なくとも一つを有する、請求項27に記載のプリント回路板。
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Application Number | Priority Date | Filing Date | Title |
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US1239207P | 2007-12-07 | 2007-12-07 | |
US1629207P | 2007-12-21 | 2007-12-21 | |
US7831508P | 2008-07-03 | 2008-07-03 |
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JP2009170891A true JP2009170891A (ja) | 2009-07-30 |
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JP2008311211A Revoked JP2009170891A (ja) | 2007-12-07 | 2008-12-05 | リジッドプリント回路板用の改良された絶縁層 |
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Country | Link |
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US (2) | US8188373B2 (ja) |
JP (1) | JP2009170891A (ja) |
CN (1) | CN101897244A (ja) |
DE (1) | DE102008060797A1 (ja) |
WO (1) | WO2009075770A1 (ja) |
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CH699836B1 (de) * | 2007-09-18 | 2010-05-14 | Ct Concept Holding Ag | Leiterkarte und Verfahren zum Herstellen einer solchen Leiterkarte. |
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WO2009075770A1 (en) | 2009-06-18 |
US20090151989A1 (en) | 2009-06-18 |
CN101897244A (zh) | 2010-11-24 |
DE102008060797A1 (de) | 2009-07-09 |
US20120227258A1 (en) | 2012-09-13 |
US8188373B2 (en) | 2012-05-29 |
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