CN106255347A - Fpc孔金属化工艺 - Google Patents

Fpc孔金属化工艺 Download PDF

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Publication number
CN106255347A
CN106255347A CN201610708626.7A CN201610708626A CN106255347A CN 106255347 A CN106255347 A CN 106255347A CN 201610708626 A CN201610708626 A CN 201610708626A CN 106255347 A CN106255347 A CN 106255347A
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CN
China
Prior art keywords
technique
fpc
hole metallization
metallization technique
dmse
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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CN201610708626.7A
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English (en)
Inventor
覃海浪
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TAISHAN JINGCHENGDA CIRCUIT Co Ltd
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TAISHAN JINGCHENGDA CIRCUIT Co Ltd
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Application filed by TAISHAN JINGCHENGDA CIRCUIT Co Ltd filed Critical TAISHAN JINGCHENGDA CIRCUIT Co Ltd
Priority to CN201610708626.7A priority Critical patent/CN106255347A/zh
Publication of CN106255347A publication Critical patent/CN106255347A/zh
Pending legal-status Critical Current

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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
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/40Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/42Plated through-holes or plated via connections
    • 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
    • H05K2203/07Treatments involving liquids, e.g. plating, rinsing
    • H05K2203/0779Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved
    • H05K2203/0786Using an aqueous solution, e.g. for cleaning or during drilling of holes
    • H05K2203/0793Aqueous alkaline solution, e.g. for cleaning or etching

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

本发明公开了一种FPC孔金属化工艺,其包括如下步骤,PI调整、水洗、DMSE工艺。本发明提供的FPC孔金属化工艺的PI调整步骤可以使FPC常用的各类基材中的介质层的孔壁表面得以粗化,有效吸附高分子导电物质,降低导体铜层之间电阻,为后续DMSE工艺提供有效保障。

Description

FPC孔金属化工艺
技术领域
本发明涉及电路板技术领域,尤其涉及一种FPC孔金属化工艺。
背景技术
现有的FPC,其结构包括基材介质层及设置在基材介质层两面的导体铜层,传统FPC孔金属化工艺,主要是使介质层孔处均匀涂布一层导电物质,再通过镀铜工艺的电化学反应,使介质层沉积一层金属铜,将上下两层导体铜层连接导通,形成良好的电气导体。
目前业内的高分子导电膜孔金属工艺(DMSE工艺),其流程如下:调整——水洗——氧化——水洗——催化——水洗烘干,其目的在介质层孔处吸附涂布一层高分子导电物质,为纳米级涂层,但是,其涂层极薄,电阻相对较大,尤其一些挠性电路板基材的介质层处经钻孔后微观下极为光滑,吸附导电物质困难,造成两层导体铜层之间电阻过大,甚至开路不导通。因电阻过大或开路情况下,介质层处无电流导通或电流过小,在镀铜工艺时无法产生电化学反应或电化学反应不良,而引起孔铜导通不良问题,为此无法广泛应用所有FPC基材。
发明内容
本发明所要解决的技术问题是,提供一种FPC孔金属化工艺,可以广泛应用于各类FPC基材。
为了解决上述技术问题,本发明采用的技术方案为:提供一种FPC金属化工艺,其包括如下步骤,
S1、PI调整,使温度在45-55℃之间,处理时间为2-6min,PI调整剂浓度为400-600ml/L,KOH浓度为40-60g/L;
S2、水洗;
S3、DMSE工艺。
本发明的有益效果在于:本发明的FPC孔金属化工艺的PI调整步骤可以使FPC常用的各类基材中的介质层的孔壁表面得以粗化,有效吸附高分子导电物质,降低导体铜层之间电阻,为后续DMSE工艺提供有效保障。
附图说明
图1为本发明实施例的FPC孔金属化工艺的流程框图。
具体实施方式
为详细说明本发明的技术内容、构造特征、所实现目的及效果,以下结合实施方式并配合附图详予说明。
本发明最关键的构思在于:本发明的工艺,可以使FPC常用的各类基材中的介质层的孔壁表面得以粗化,有效吸附高分子导电物质。
请参阅图1,本发明FPC孔金属化工艺,其包括如下步骤,
S1、PI调整,使温度在50-60℃之间,处理时间为2-6min,PI调整剂浓度为400-600ml/L,KOH浓度为40-60g/L;
S2、水洗;
S3、DMSE工艺。
从上述描述可知,本发明的有益效果在于:本发明的FPC孔金属化工艺的PI调整步骤可以使FPC常用的各类基材中的介质层的孔壁表面得以粗化,有效吸附高分子导电物质,降低导体铜层之间电阻,为后续DMSE工艺提供有效保障。
进一步的,所述PI调整剂是KOH12.5%-15%、联氨7.0%-10%的混合溶液。
进一步的,所述步骤S2为二级溢流水洗。
实施例一
请参照图1,本发明的实施例一为:本实施例的FPC孔金属化工艺,包括如下步骤,
S1、PI调整,使温度在50-60℃之间,处理时间为2-6min,PI调整剂浓度为400-600ml/L,KOH浓度为40-60g/L;
S2、水洗;
S3、DMSE工艺。
所述PI调整剂是KOH12.5%-15%、联氨7.0%-10%的混合溶液。
进一步的,所述步骤S2为二级溢流水洗。
综上所述,本发明提供的FPC孔金属化工艺的PI调整步骤可以使FPC常用的各类基材中的介质层的孔壁表面得以粗化,有效吸附高分子导电物质,降低导体铜层之间电阻,为后续DMSE工艺提供有效保障,能够适用于各种FPC基材。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等同变换,或直接或间接运用在相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (3)

1.一种FPC孔金属化工艺,其特征在于,其包括如下步骤,
S1、PI调整,使温度在45-55℃之间,处理时间为2-6min,PI调整剂浓度为400-600ml/L,KOH浓度为40-60g/L;
S2、水洗;
S3、DMSE工艺。
2.根据权利要求1所述的FPC孔金属化工艺,其特征在于,所述PI调整剂是KOH12.5%-15%、联氨7.0%-10%的混合溶液。
3.根据权利要求1或2所述的FPC孔金属化工艺,其特征在于,所述步骤S2为二级溢流水洗。
CN201610708626.7A 2016-08-23 2016-08-23 Fpc孔金属化工艺 Pending CN106255347A (zh)

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CN106255347A true CN106255347A (zh) 2016-12-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107447207A (zh) * 2017-08-01 2017-12-08 苏州天承化工有限公司 一种软板调整液及粗化方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266586A (ja) * 1989-04-07 1990-10-31 Fujikura Ltd フレキシブルプリント配線板及びその製造方法
CN101838802A (zh) * 2009-03-20 2010-09-22 比亚迪股份有限公司 一种用于化学镀的活化液及非金属表面活化方法
CN103079365A (zh) * 2012-12-28 2013-05-01 深圳市中兴新宇软电路有限公司 多层柔性电路板内层线路一次成型方法
CN105463416A (zh) * 2014-07-31 2016-04-06 比亚迪股份有限公司 一种用于聚酰亚胺化学粗化的调整液和一种聚酰亚胺表面化学粗化的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266586A (ja) * 1989-04-07 1990-10-31 Fujikura Ltd フレキシブルプリント配線板及びその製造方法
CN101838802A (zh) * 2009-03-20 2010-09-22 比亚迪股份有限公司 一种用于化学镀的活化液及非金属表面活化方法
CN103079365A (zh) * 2012-12-28 2013-05-01 深圳市中兴新宇软电路有限公司 多层柔性电路板内层线路一次成型方法
CN105463416A (zh) * 2014-07-31 2016-04-06 比亚迪股份有限公司 一种用于聚酰亚胺化学粗化的调整液和一种聚酰亚胺表面化学粗化的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107447207A (zh) * 2017-08-01 2017-12-08 苏州天承化工有限公司 一种软板调整液及粗化方法

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Application publication date: 20161221