TW558924B - A cleaning machine of a circuit board - Google Patents

A cleaning machine of a circuit board Download PDF

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Publication number
TW558924B
TW558924B TW92101063A TW92101063A TW558924B TW 558924 B TW558924 B TW 558924B TW 92101063 A TW92101063 A TW 92101063A TW 92101063 A TW92101063 A TW 92101063A TW 558924 B TW558924 B TW 558924B
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Taiwan
Prior art keywords
circuit board
cleaning machine
conductive film
printed circuit
anisotropic conductive
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TW92101063A
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Chinese (zh)
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TW200414844A (en
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Le-Nien Tan
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Chi Mei Optoelectronics Corp
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Publication of TW200414844A publication Critical patent/TW200414844A/en

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  • Electric Connection Of Electric Components To Printed Circuits (AREA)
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Abstract

A cleaning machine of a circuit board for removing anisotropic conductive film (ACF) formed on the circuit board including a stage moved in a reciprocating manner for carrying the circuit board, a heater for softening the ACF on the circuit board, and a scraping apparatus for removing the softish ACF on the circuit board.

Description

558924 五、發明說明(1) 發明所屬之技術領域 本發明係提供一種電路板的清潔機台,尤指一種印 刷電路板(printed circuit board, PCB)的清潔機台, 可用來去除印刷電路板表面的異方性導電膜 (anisotropic conductive film, ACF)° 先前技術 異方性導電膜為一種包含有導電粒子的黏著膠,是 採用特殊技術所製成,以使任一單分散性的導電粒子可 均1分佈於黏著膠内。一般而言,異方性導電膜所使用 ί m為單现分散性的鍍金聚合物球,,直徑約為7微 :二:Γΐ約*18°°平方毫米微粒 距約為1 6微未,薄膜厚度約為25微米,固化 壓力約為1至50Mpa,黏合溫度約為18(rc,黏人、門口 於20秒,而固化後的玻璃轉化溫度約為⑽:時間約大 由於異方性導電膜具有良好的防濕、接 =及絕緣能力,異方性導電膜已普遍用 ^, (dnving IC)與印刷電路板之 積體電路 (爪軟㈣㈣液晶顯示面板^板&558924 V. Description of the invention (1) The technical field of the invention The present invention provides a circuit board cleaning machine, especially a printed circuit board (PCB) cleaning machine, which can be used to remove the surface of the printed circuit board. Anisotropic conductive film (ACF) ° Prior art anisotropic conductive film is an adhesive glue containing conductive particles, which is made using special technology to make any monodisperse conductive particles Both are distributed in the adhesive. Generally speaking, the anisotropic conductive film used is monodisperse gold-plated polymer spheres with a diameter of about 7 micrometers: two: Γΐ about * 18 °° square millimeter particle distance is about 16 micrometers, The thickness of the film is about 25 microns, the curing pressure is about 1 to 50 MPa, and the bonding temperature is about 18 (rc, and the door is about 20 seconds, and the glass transition temperature after curing is about ⑽: the time is approximately due to the anisotropic conductivity The film has good moisture resistance, connection, and insulation capabilities. Anisotropic conductive films have been commonly used. (Dnving IC) and printed circuit board integrated circuits (claw soft ㈣㈣ liquid crystal display panel ^ board &

第4頁 558924Page 4 558924

五、發明說明(2) 性電路板與印刷電路板之間的連接、軟性電路板或軟性 電路板之間的連接等,並可應用於各種封裝製程中,例 如捲帶式封裝體(tape carrier package,TCP)、軟片自 動接合(tape automated bonding, TAB)、玻璃覆晶 (chip on glass, COG)、覆晶薄膜(chip on film日日 笠。 ’ ιυι) 而對於目 到上述多種的 電膜將驅動積 體電路上之凸 連接,再將設 導電膜牵線到 在液晶顯示面 電路板聯結起 示面板,因為 面板產生缺角 連接於液晶顯 拆卸下後再行 成本之目的。 用來當作互連 這些異方性導 刷電路板自液 導電膜的印刷 前曰漸普及的 接合與封裝製 體電路固定在 塊(bump)或引 有驅動積體電 印刷電路板與 板末端的電極 來。然而,當 後續製程或人 或破片的情況 示面板上的印 回收利用,以 不過由於拆卸 材料的異方性 電膜,一般採 晶顯示面板拆 電路板表面塗 液晶顯示器模 程,其主要是 軟性電路板上 腳與軟性電路 路的軟性電路 液晶顯不面板 可透過異方性 已接合印刷電 為的缺失,而 ,以致於必須 刷電路板自液 避免資源浪費 下的印刷電敗 導電膜,習知 用人工擦栻方 卸下之後,於 抹上剝離劑, 組,也有使用 利用異方性導 ,並讓驅動積 板上之導線相 板利用異方性 上,使得分佈 導電膜與軟性 路板的液晶顯 造成液晶顯示 報廢時,可將 曰曰顯示面板上 並可達到節省 板表面會殘留 業界為了去除 式,亦即將印 殘留有異方性 再以軚性刮V. Description of the invention (2) The connection between the flexible circuit board and the printed circuit board, the connection between the flexible circuit board or the flexible circuit board, etc., and can be used in various packaging processes, such as tape carrier (tape carrier package (TCP), tape automated bonding (TAB), chip on glass (COG), and chip on film (笠 ιυι), and for all kinds of electrical film will see The convex connection on the integrated circuit is driven, and then the conductive film is drawn to connect the display panel with the liquid crystal display surface circuit board, because the panel has a missing corner and is connected to the liquid crystal display to remove the cost. Used to interconnect these anisotropic conductive brushed circuit boards. Self-liquid conductive films of printed circuit boards were widely used before bonding and packaging. Circuits were fixed to bumps or driven printed circuit boards and the ends of the boards. The electrodes come. However, when the subsequent process or the situation of people or fragments show the recycling of the printing on the panel, but due to the disassembly of the anisotropic electrical film, the crystal display panel is generally used to remove the circuit board surface and coat the LCD display module, which is mainly soft. The flexible circuit liquid crystal display panel of the circuit board and the flexible circuit circuit can be connected to the printed circuit through the anisotropy. Therefore, it is necessary to brush the printed circuit board to avoid the waste of resources. It is known that after removing by manual rubbing, apply a release agent to the group. There are also uses of anisotropic conduction, and the lead phase plate of the driver board is anisotropic, so that the conductive film and the flexible circuit board are distributed. When the liquid crystal display causes the liquid crystal display to be scrapped, it can be saved on the display panel and can save the surface of the board. In order to remove the type in the industry, it is also necessary to scrape the anisotropic residue on the printing and then scrape it with a scum.

558924 五、發明說明(3) ^ ’例如電木工具手動的刮除殘留於印 異方性導電膜。 I則蒐路板表面的 上述用來去除回收印刷電路板上的異方性 方法,主要是利用剝離劑來軟化固化後的異方雷、 膜,且為了要快速地軟化異方性導電膜,因 剝離劑多含有微毒的揮發性有機溶劑,如此不产 害人體健康,且以人工清潔的速度非常緩慢,^ ς主、= 一片回收的印刷電路板需約4至6分鐘,對於二/月办 器製程而言需要浪費大量人力資源,此外,、以f 2 j = 方式所回收的印刷電路板容易因人而異,無法 =, 穩定的回收印刷電路板。 Ό口質 發明内容 本發明之主要目的在於提供一種電路板的 台,可快速的清潔回收後的印刷電路板表面,^: 用含有微毒的剝離劑,不但適合量產使用且夏右免使 令。 >、百J衣保概 在本發明之最佳實施例中揭露了 一種電路板主 機台,可用來去除該電路板表面的異方性導電膜的清潔 (anisotropic conductive film, ACF)。該清潔 要包含有一可作往復移動的基座(stage),用來备。主 承栽該電558924 V. Description of the invention (3) ^ 'For example, a bakelite tool is used to scrape off the anisotropic conductive film manually. I. The method for removing the anisotropy on the recovered printed circuit board on the surface of the circuit board mainly uses a release agent to soften the cured anisotropic lightning and film, and in order to quickly soften the anisotropic conductive film, Because the stripping agent contains a slightly toxic volatile organic solvent, it does not harm human health, and it is very slow to clean manually. ^ Master, = A recycled printed circuit board takes about 4 to 6 minutes. A large amount of human resources are wasted in the manufacturing process of a monthly server. In addition, the printed circuit board recovered by the f 2 j = method is easy to vary from person to person, and cannot be recovered stably. The main purpose of the present invention is to provide a circuit board stage which can quickly clean the surface of a printed circuit board after recycling. ^: Using a slightly toxic release agent is not only suitable for mass production use but also free make. > Hundred J clothing guarantee In a preferred embodiment of the present invention, a circuit board main machine is disclosed, which can be used to remove the anisotropic conductive film (ACF) on the surface of the circuit board. The cleaning includes a reciprocable stage for preparation. Host the electricity

558924 五、發明說明(4) 導雷t熱器(heater)’用來軟化該電路板表面的異 軟化後=方除裝置’用來去除該電路板表面 回收ΐ ΐ ί發明之清潔機台是利用加熱器來預熱並軟化 使用習f刷電路板表面的異方性導電膜,因此可避免 外,太:具有毒性的剝離劑,以避免危害人體健康。此 .1 » 明之清潔機台為機械自動化之機台’可以更快 jt除印刷電路板表面的異方性導電膜,以得到品質 穩、疋的回收印刷電路板,適合量產使用。 實施方式 士 考圖一,圖一為本發明之電路板清潔機台10的 結構不意圖。如圖一所示,本發明的清潔機台i 0主要包 t有一平台12,一基座(St age )1 4以可移動的方式安置於 平台1 2上,以及一自液晶顯示面板(未顯示於圖一中)上 拆卸下來的印刷電路板16,且其表面包含有異方性導電 膜18。其中,基座14是用來承載印刷電路板16,且基座 1 4是利用一驅動裝置(未顯示於圖一中),例如步進馬達 (step mo tor)來驅動並控制基座14於平台12上的移動。 此外,本發明的清潔機台1 〇另包含有一加熱器 (heater) 20,用來預熱並軟化印刷電路板16表面的異方558924 V. Description of the invention (4) Lightning guide heater (used to soften the surface of the circuit board after the softening = square removal device 'is used to remove the circuit board surface recovery ΐ ΐ 发明 The invention of a cleaning machine is The heater is used to preheat and soften the anisotropic conductive film on the surface of the circuit board, so it can be avoided, too: a toxic stripping agent to avoid endangering human health. This .1 »Mingzhi cleaning machine is a machine automation machine. It can jt remove the anisotropic conductive film on the surface of the printed circuit board faster, so as to obtain a stable and stable recycled printed circuit board, suitable for mass production. Embodiment FIG. 1 is a schematic diagram of a circuit board cleaning machine 10 according to the present invention. As shown in FIG. 1, the cleaning machine i 0 of the present invention mainly includes a platform 12, a base (St age) 14 is movably disposed on the platform 12, and a liquid crystal display panel (not shown) (Shown in FIG. 1), and the printed circuit board 16 is detached from the printed circuit board 16, and its surface includes an anisotropic conductive film 18. Among them, the base 14 is used to carry the printed circuit board 16, and the base 14 is driven and controlled by a driving device (not shown in FIG. 1), such as a step motor (step mo tor). Movement on the platform 12. In addition, the cleaning machine 10 of the present invention further includes a heater 20 for preheating and softening the irregularities on the surface of the printed circuit board 16.

$ 7頁 558924 五、發明說明(5) 導電膜18,以及一剝除裝置22,用來去除印刷電路板 16表面軟化後的異方性導電膜i8。在本發明之最佳實施 例中,加熱器20為一熱風搶,會吹出熱風以軟化印刷電 路板16表面的異方性導電膜18,且熱風的溫度約介於15〇 至200C之間,而剝除裝置22為一可轉動的鬃毛刷,藉由 鬃毛刷的轉動,可以輕易的去除印刷電路板丨6表面軟化 後的異方性導電膜1 8。然本發明之應用並不侷限於此, 任何可加熱至高,以用來軟化異方性導電膜的加熱裝 置,例如電加熱管、遠紅外線輻射加熱器等,或是任何 不會損傷到印刷電路板表面的工具,例如由電木 (bakelite)材料或鐵氟龍(tefl〇n)材料所構成的尖硬 棒’皆適用於本發明之清潔機台中。 本發明之印刷電路板 印刷電路板1 6自液晶 下來之後’將表面具 放於基座1 4上,接著 加熱並軟化印刷電路 驅動裝置會驅動並控 進行移動,接著剝除 異方性導電膜1 8 ,直 導電膜18完全去除為 收的 拆卸 上置 開始 且該 速度 後的 方性 1 6的清潔方法為以人工將欲回 顯示面板(未顯示於圖一中)上 有異方性導電膜1 8的那一面朝 啟動清潔機台10,加熱器2 0會 板1 6表面的異方性導電膜1 8, 制基座1 4於平台1 2上以一預定 裝置2 2會開始轉動以去除軟化 至整片印刷電路板1 6表面的異 止,再關閉清潔機台1 〇。 值得注意的是’為了使本發明之清潔機台丨〇的功能$ 7 pages 558924 V. Description of the invention (5) The conductive film 18 and a stripping device 22 are used to remove the anisotropic conductive film i8 after the surface of the printed circuit board 16 is softened. In the preferred embodiment of the present invention, the heater 20 is a hot air blast, which will blow out hot air to soften the anisotropic conductive film 18 on the surface of the printed circuit board 16, and the temperature of the hot air is between about 150 and 200C. The stripping device 22 is a rotatable bristle brush, and by rotating the bristle brush, the softened anisotropic conductive film 18 on the surface of the printed circuit board 6 can be easily removed. However, the application of the present invention is not limited to this. Any heating device that can be heated to a high level to soften the anisotropic conductive film, such as an electric heating tube, a far-infrared radiant heater, etc., or any that will not damage the printed circuit. Tools on the surface of the board, such as pointed hard rods made of bakelite or teflon materials, are suitable for use in the cleaning machine of the present invention. After the printed circuit board 16 of the present invention comes down from the liquid crystal, 'the surface tool is placed on the base 14 and then the heating and softening of the printed circuit driving device will drive and control the movement, and then strip the anisotropic conductive film 18, The straight conductive film 18 is completely removed. The squareness after the disassembly is started and the speed is 16. The cleaning method is to manually return the display panel (not shown in Figure 1) with anisotropic conductivity. The side of the membrane 18 is facing the start-up cleaning machine 10, the heater 20 will be an anisotropic conductive film 18 on the surface of the plate 6, the base 1 will be started on the platform 12 with a predetermined device 2 2 will start Turn to remove the abnormalities that have softened to the entire printed circuit board 16 surface, and then close the cleaning machine 10. It is worth noting that ‘to make the cleaning machine of the present invention function

558924 、發明說明(6) 完備’任何具有清潔功效的裝置或可加速去除異方 #導電膜的装置皆可以設於本發明的清潔機台丨〇中,例 一 ^發明的清潔機台1 〇可另包含有一凸輪機(未顯示於圖 μ )’藉由該凸輪機的來回振動以控制剝除裝置2 2的移 ^圍與速度,使得印刷電路板丨6表面的異方性導電膜 1 8可以完全被去除。此外,例如一沾附有揮發性溶劑的 $織布材料的清潔工具也可以設於本發明之清潔機台i 〇 ’用以擦拭已去除異方性導電膜1 8後的印刷電路板i 6 表面’去除殘留於印刷電路板i 6表面之異方性導電膜i 8 的殘渣或微屑。 综上所述’相較於習知以手工擦拭回收後印刷電路 板的方式,本發明主要以自動化的清潔機台來清潔回收 後的印刷電路板,因此可大幅地節省人力資源,加快回 收處理的時間,且可得到品質穩定的回收印刷電路板。 此外’本發明之清潔機台是利用加熱器來預熱並軟化印 刷電路板表面的異方性導電膜,因此可避免習知因使用 具有毒性的剝離劑所造成的職業傷害,並利用不易刮傷 印刷電路板表面的剝除裝置,例如鬃毛刷或尖硬棒,配 合轉動與振動的效果,更可以快速地去除印刷電路板表 面的異方性導電膜’以得到表面清潔的印刷電路板,適 合量產使用。 以上所述僅為本發明之較佳實施例,凡依本發明申 558924 五、發明說明(7) 請專利範圍所作之均等變化與修飾,皆應屬本發明專利 之涵蓋範圍。 第10頁 i·· 558924558924, invention description (6) Complete 'Any device with cleaning effect or a device that can accelerate the removal of the alien # conductive film can be set in the cleaning machine of the present invention, example 1, the cleaning machine of the invention 1 〇 It may further include a cam machine (not shown in the figure μ). The back and forth vibration of the cam machine is used to control the movement and speed of the stripping device 22, so that the anisotropic conductive film 1 on the surface of the printed circuit board 6 8 can be completely removed. In addition, for example, a cleaning tool with a woven material attached with a volatile solvent can also be provided on the cleaning machine i 0 ′ of the present invention to wipe the printed circuit board i 6 after the anisotropic conductive film 18 has been removed. The surface 'removes residues or fine particles of the anisotropic conductive film i 8 remaining on the surface of the printed circuit board i 6. In summary, compared to the conventional method of manually cleaning the recovered printed circuit board, the present invention mainly uses an automated cleaning machine to clean the recovered printed circuit board, so it can greatly save human resources and speed up the recycling process. Time, and a stable quality recycled printed circuit board can be obtained. In addition, the cleaning machine of the present invention uses a heater to preheat and soften the anisotropic conductive film on the surface of the printed circuit board, so it can avoid the occupational injuries caused by the use of toxic release agents and make it difficult to scratch. A peeling device that damages the surface of a printed circuit board, such as a bristle brush or a pointed hard rod. With the effects of rotation and vibration, the anisotropic conductive film on the surface of the printed circuit board can be quickly removed to obtain a clean printed circuit board. , Suitable for mass production. The above description is only a preferred embodiment of the present invention. Any equivalent changes and modifications made in accordance with the present invention in accordance with the present invention 558924 V. Description of the Invention (7) shall be covered by the patent of the present invention. P. 10 i ... 558924

第11頁Page 11

Claims (1)

558924 558924558924 558924 χ· 一種電路板之清潔機台,用來去除該電路板表面 異方性導電膜(anisotropic conductive fiim,ACF) 一可作往復移動的基座(stage),用來承載該電路 板; 一加熱器(heater),用來軟化該電路板表面的異 性導電膜;以及 、v 一剝除裝置’用來去除該電路板表面軟化後的異 性導電膜。 、 2·如申請專利範圍第1項所述之清潔機台,其中該電 板係為一硬式印刷電路板(printed circuit board PCB)。 ’ 3·如申請專利範圍第1項所述之清潔機台另包含有—步 進馬達(step motor),用來驅動並控制該基座的移動。 4/ /如申請專利範圍第1項所述之清潔機台,其中該加熱 器係為一熱風搶,會吹出熱風以軟化該電路板表面的異 方性導電膜。 、 5 ·如申請專利範圍第4項所述之清潔機台,其中該熱風 的溫度約介於1 5 0至2 0 (TC之間。 ’χ · A cleaning machine for a circuit board, used to remove the anisotropic conductive film (ACF) on the surface of the circuit board A reciprocating stage for carrying the circuit board; a heating A heater for softening the anisotropic conductive film on the surface of the circuit board; and, a v-stripping device for removing the softened anisotropic conductive film on the surface of the circuit board. 2. The cleaning machine as described in item 1 of the scope of patent application, wherein the electric board is a printed circuit board (PCB). ‘3. The cleaning machine described in item 1 of the scope of patent application further includes a step motor, which is used to drive and control the movement of the base. 4 // The cleaning machine as described in item 1 of the scope of patent application, wherein the heater is a hot air blast, which will blow hot air to soften the anisotropic conductive film on the surface of the circuit board. 5) The cleaning machine as described in item 4 of the scope of patent application, wherein the temperature of the hot air is between 150 and 20 (TC. ’
TW92101063A 2003-01-20 2003-01-20 A cleaning machine of a circuit board TW558924B (en)

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CN101995673B (en) * 2009-08-21 2012-07-04 思尔特电子(苏州)有限公司 Anisotropic conductive film (ACF) removing system and control method thereof
CN104624532B (en) * 2015-01-23 2016-07-13 昆山龙腾光电有限公司 Sweller coating heater and operational approach thereof
CN114472368A (en) * 2021-06-09 2022-05-13 华显光电技术(惠州)有限公司 Residual glue cleaning method and device
CN113578870A (en) * 2021-07-20 2021-11-02 深圳市中深光电股份有限公司 Novel method for cleaning ACF

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