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TWI324500B - The way to prevent the broken circuit of the fpc - Google Patents

The way to prevent the broken circuit of the fpc Download PDF

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Publication number
TWI324500B
TWI324500B TW095105435A TW95105435A TWI324500B TW I324500 B TWI324500 B TW I324500B TW 095105435 A TW095105435 A TW 095105435A TW 95105435 A TW95105435 A TW 95105435A TW I324500 B TWI324500 B TW I324500B
Authority
TW
Taiwan
Prior art keywords
circuit board
film
board
circuit
test method
Prior art date
Application number
TW095105435A
Other languages
English (en)
Other versions
TW200733831A (en
Inventor
Hui Ping Chen
Chien Chung Chen
Yu Ching Chen
Original Assignee
Au Optronics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Au Optronics Corp filed Critical Au Optronics Corp
Priority to TW095105435A priority Critical patent/TWI324500B/zh
Priority to US11/637,788 priority patent/US7779539B2/en
Publication of TW200733831A publication Critical patent/TW200733831A/zh
Application granted granted Critical
Publication of TWI324500B publication Critical patent/TWI324500B/zh

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/11Printed elements for providing electric connections to or between printed circuits
    • H05K1/118Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009Reinforced areas, e.g. for a specific part of a flexible printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/01Tools for processing; Objects used during processing
    • H05K2203/0191Using tape or non-metallic foil in a process, e.g. during filling of a hole with conductive paste
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/02Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
    • H05K2203/0264Peeling insulating layer, e.g. foil, or separating mask
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/16Inspection; Monitoring; Aligning
    • H05K2203/162Testing a finished product, e.g. heat cycle testing of solder joints
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/0058Laminating printed circuit boards onto other substrates, e.g. metallic substrates
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/22Secondary treatment of printed circuits
    • H05K3/28Applying non-metallic protective coatings
    • H05K3/281Applying non-metallic protective coatings by means of a preformed insulating foil
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155Manufacturing circuit on or in base
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155Manufacturing circuit on or in base
    • Y10T29/49156Manufacturing circuit on or in base with selective destruction of conductive paths
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155Manufacturing circuit on or in base
    • Y10T29/49158Manufacturing circuit on or in base with molding of insulated base
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49718Repairing
    • Y10T29/49732Repairing by attaching repair preform, e.g., remaking, restoring, or patching

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Structure Of Printed Boards (AREA)

Description

1324500 九、發明說明: 【發明所屬之技術領域】 本發明係提供一種防止電路板上線路斷裂之方法,特別是 指在電路板表面上貼附-薄膜,以強化此電路板之硬度。疋 【先前技術】 • 縣電子科麟快速發展,各種因應消費者料同需求之 鲁電子產品也跟著不斷地推陳出新。因而輕薄短小的電子裝置越 來越夕’主要如照相機、通訊裝置、筆記型電腦、液晶顯示哭 以及PM等等。且上述電子產品的設計趨勢並主要以輕質化: 薄型化、低價化、高品質、高精密化作為設計重點。 自於各式小魏子裝置義速發展,產品_越來越小, 連fU在其巾的電子零件亦趨姆,如電路板及其線路、 顯不器、其他面板或是連接器等。而在上述不同的電子零件間 •.錄需要靠線路來連接組裝,因此在線路連接時通常會使用繼 線或軟性電路板,來達到傳輸連接的目的。 但值得注意的是,上述軟性電路板因具有輕薄特性,所以 藉由軟性電路板在組裝於面板上,或是需要藉由軟性電路板進 灯零件測試的同時’產線人員往往在拿取軟性電路板的過程或 使用電測治具時,因為頻繁的插拔此電路板,而造成電路板前 端位置線路騎路以及t路餅_異常孩,終而使電路板 產品的不良率提昇。 —般常見的軟性電路板如圖一所示,係為一軟性電路板夏 之側面示意圖。其中主要包括一基板10、-銅層101及-覆蓋 層103。軟性電路板由於基板1〇較薄因此可以任意挽曲且基 板W 一般為黃棕色之聚亞醯胺(PI)及無色之聚自旨樹脂⑽)所 構成。並在基板1〇表面壓延上一銅層1〇1,銅们〇1經過光钱 刻的程序將需要的部份峨祕等化㈣品㈣形成所需要的 線路圖案。接著可經過機械加工、組裝等步驟_將另外所需 的電子元件排列在基板10上,形成所謂的軟性電路板。 軟性電路板的基板10油層101之間-般需加上-接著劑 102黏合。並且,為了使整塊軟性電路板的厚度符合所需,基板 10加上接著劑的厚度通常會控制在〇· 以下。常見的接著劑 102材料可為環氧樹脂或是壓克力材質。 為了避免基板10表面的銅層101受到損壞或污染,因此在 銅層101表面都會再覆蓋一覆蓋層103,覆蓋層1〇3係為-薄膜 並與基板10具有相同的材質’可用來保護銅層1〇1之線路。 接著請參照圖二所示,係為軟性電路板與其他連接器結合 之不思'圖。其軟性電路板1可透過其前端的接頭105與其他電 路板或是其他線路板上的連接插槽1〇4連接。連接插槽1〇4内 的端點通常是電賴或錯錫,且軟性電路板丨的接頭1G5通常 為鍍上5〜15μιη銲錫的金手指。藉由接頭1〇5與連接插槽1〇4的 結合,可使軟性電路板與其他電路板間產生訊號連接。 如上所述,隨著電子產品尺寸越趨輕薄短小,組裝於電子 產品中的軟性電路板亦製作得更薄,以便能在有限的空間中連 結不同的電子零件。轉注意的是,在由於軟性電路板的基板 車又薄’因此文到外力很容易產生變形,所以在製造的過程中, 以自動化傳送會變得相對困難,因此有好的測試或組裝動作 都必須仰賴人工來處理。 但出現的問題是’人工在插拔軟性電路板與連接器的同 時’所產生之應力多會集中在軟性電路板的前端位置,特別是 由於電路板前端由金手麵成的接頭,相較於 整塊軟性電路 板會具有較厚f的結構,因此軟性電路板在插拔過程中,容 易在刖端的接點線路上發生斷路縣,導致軟性電路板不良率 高達2.17%以上。 不但如此’在軟性電路板檢測之外觀方面,常因人工在插 拔時觸碰到基板,導致表面調痕及外職傷。紐得檢測外 觀部份的不良率高達繼。因此為了避免上述電路板不良率太 高的缺失,如何來解決軟性電路板之斷路及外觀損傷的情形乃 是刻不容緩的課題。 【發明内容】 本發月之目的,即是在提供—種防止電路板上線路斷裂之 方法,係錢行此板之#倾轉歸卜薄聽電路板表 面’以強化電路板之硬度’藉此降低電路板在組驗拔時發生 線路斷裂。其巾上述__鱗此餅板進行i試流程。 本發明之防止線路斷裂之電路板測試方法,包括下列步 驟.(1)細-相於電顿表面;接著⑵反覆插拔電路板於 不同的插射,輯行數_試辩;錢⑶將_從電路板 撕離。 在本只施彳种’電路板具有_接頭,用以與上述步驟2之 插槽連結’且軸之_係緊鄰此接頭。且電路板之厚度係在 09 0.12ram ’其中此電路板可為一軟性電路板。另外,薄膜之 厚度係小於G·15ΐΜ,城薄膜係為-韻樹脂(Polyethylene Te—e ;PET),並為—低黏度的材質。 為了此更進-步瞭解本發明特徵及技術内容,請參閱以下 有關本發明之詳細卿與關,然⑽關式僅提供參考與說 明用,並非用來對本發明加以限制。 【實施方式】 本發明提供—種防止電路板上線路斷裂之方法,特別是在 進行電路板之操作流程前崎於電路板表面,以強化此 電路板之硬度,藉此降低電路板在缝插拔生線 以下兹列舉-較佳實施例以·本發明,然熟悉此項技敲者皆 知此僅為-糊,而並_雜定㈣本身4鼠較佳實施 例之内容詳述如下。 8

Claims (1)

1324500 » » 十、申請專利範固: 1、 一種防止電路板上線路斷裂 之操作流雜_—t係麵·電路板 硬度,苴巾上、面,㈣化該電路板之 八中上她作流程係對該電路板進行-測試流程。 2、 如申請專利範圍第1項所 方法,〈防止電路板上線路斷裂之 八中該電路板之厚度係在〇.〇9〜0.12咖。 之
古、3、如中請專利範圍第1項所述之防止電路板上線路斷裂 方法,其中〶_之厚度係小於0. 15mm。 心如申請專利範圍幻項所述之防錢路板上線路斷裂之 方法’其中該薄膜係為-聚酷樹脂⑽yethylene Terephthalate; PET)。 、5、如中請專利第丨項所述之防止電路板上線路斷裂之 方法’其中該薄膜係為一低黏度的材質。 、6、如中請專利範圍第!項所述之防止電路板上線路斷裂之 方法,其中該電路板為一軟性電路板。 7、 如申請專概圍第丨項所狀防止電路板上線路斷裂之 方法,其中該電路板具有-接頭’用以與其他電路板上之插槽 連結,且貼附於該電路板表面之該薄膜係緊鄰該接頭。 9 8、 一種防止線路斷裂之電路板測試方法,包括下列步驟: (1) 貼附一薄膜於該電路板表面; (2) 反覆插拔該電路板於不同的插槽中,以進行數種測試 程序;及 13 1324500 » » * , * (3)將該薄膜從該電路板撕離;其中該薄膜係以強化該電 路板之硬度,藉此降低該電路板在組裝插拔時發生線路斷裂。 9、 如申請專利範圍第8項所述之測試方法,其中該電路板 具有-接頭,用以與步驟2之該插槽連結,且貼附之該薄膜係 緊鄰該接頭。 10、 如申請專利範圍第8項所述之職方法,其中該電路 板之厚度係在0. 09〜0.。 • 1卜如申請專利範圍第8項所述之測試方法,其中該薄膜 之厚度係小於0,15mm。 12、 如申請專利範圍第8項所述之測試方法,其中步驟工 ^ 薄膜係為一聚 g旨樹脂(Polyethylene Terephthalate; PET)。 13、 如申請專利範圍第12項所述之測試方法,其中該薄膜 係為一低黏度的材質。 14、 如申請專利範圍第8項所述之測試方法,其中該電路 板可為一軟性電路板。 1324500
圖二(習知技術)
TW095105435A 2006-02-17 2006-02-17 The way to prevent the broken circuit of the fpc TWI324500B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW095105435A TWI324500B (en) 2006-02-17 2006-02-17 The way to prevent the broken circuit of the fpc
US11/637,788 US7779539B2 (en) 2006-02-17 2006-12-13 Method for preventing broken circuits of a flexible printed circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095105435A TWI324500B (en) 2006-02-17 2006-02-17 The way to prevent the broken circuit of the fpc

Publications (2)

Publication Number Publication Date
TW200733831A TW200733831A (en) 2007-09-01
TWI324500B true TWI324500B (en) 2010-05-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW095105435A TWI324500B (en) 2006-02-17 2006-02-17 The way to prevent the broken circuit of the fpc

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TW (1) TWI324500B (zh)

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US10083137B2 (en) 2015-04-02 2018-09-25 Atmel Corporation Peripheral interface circuit for serial memory
JP7043267B2 (ja) 2018-01-17 2022-03-29 株式会社ジャパンディスプレイ 表示装置
JP2019139072A (ja) * 2018-02-09 2019-08-22 株式会社ジャパンディスプレイ 表示装置およびフレキシブル配線基板
US11670900B2 (en) 2019-02-05 2023-06-06 Emergency Technology, Inc. Universal smart adaptor

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US3024151A (en) * 1957-09-30 1962-03-06 Automated Circuits Inc Printed electrical circuits and method of making the same
US3181986A (en) * 1961-03-31 1965-05-04 Intellux Inc Method of making inlaid circuits
US3301730A (en) * 1961-04-03 1967-01-31 Rogers Corp Method of making a printed circuit
DE3322382A1 (de) * 1983-06-22 1985-01-10 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Verfahren zur herstellung von gedruckten schaltungen
JP2607633B2 (ja) * 1988-07-28 1997-05-07 日東電工株式会社 離型シート仮止めフレキシブル回路の製法およびその離型シート仮止めフレキシブル回路
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JP3305770B2 (ja) 1992-10-09 2002-07-24 三菱伸銅株式会社 金属膜付きポリイミドフィルム
JPH06314860A (ja) * 1993-04-28 1994-11-08 Sony Chem Corp 可撓性回路基板
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US6921451B2 (en) 2002-06-28 2005-07-26 Metallized Products, Inc. Method of and apparatus for protecting thin copper foil and other shiny substrates during handling and rigorous processing, as pcb manufacture and the like, by electric-charge adherence thereto of thin release-layered plastic films and the like, and improved products produced thereby

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TW200733831A (en) 2007-09-01
US7779539B2 (en) 2010-08-24
US20070193771A1 (en) 2007-08-23

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