CN112911804A - 能防除胶污染的退膜、除胶、化铜三合一工艺 - Google Patents

能防除胶污染的退膜、除胶、化铜三合一工艺 Download PDF

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CN112911804A
CN112911804A CN202110042252.0A CN202110042252A CN112911804A CN 112911804 A CN112911804 A CN 112911804A CN 202110042252 A CN202110042252 A CN 202110042252A CN 112911804 A CN112911804 A CN 112911804A
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film
glue
pcb
copper
microetching
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CN202110042252.0A
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李齐良
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Plotech Technology Kunshan Co ltd
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Plotech Technology Kunshan Co ltd
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Priority to CN202110042252.0A priority Critical patent/CN112911804A/zh
Priority to TW110109192A priority patent/TWI800804B/zh
Priority to TW110202765U priority patent/TWM619792U/zh
Priority to TW111117227A priority patent/TW202243557A/zh
Publication of CN112911804A publication Critical patent/CN112911804A/zh
Priority to KR1020210077870A priority patent/KR20220128919A/ko
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    • 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
    • H05K3/0011Working of insulating substrates or insulating layers
    • H05K3/0055After-treatment, e.g. cleaning or desmearing of holes
    • 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
    • H05K3/0085Apparatus for treatments of printed circuits with liquids not provided for in groups H05K3/02 - H05K3/46; conveyors and holding means therefor
    • 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
    • H05K3/0011Working of insulating substrates or insulating layers
    • H05K3/0017Etching of the substrate by chemical or physical means
    • H05K3/0026Etching of the substrate by chemical or physical means by laser ablation
    • 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
    • H05K3/02Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
    • H05K3/06Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
    • H05K3/067Etchants
    • 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
    • H05K3/10Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/14Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using spraying techniques to apply the conductive material, e.g. vapour evaporation
    • H05K3/146By vapour deposition
    • 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
    • H05K2203/05Patterning and lithography; Masks; Details of resist

Abstract

本发明属于印刷电路板制造技术领域,涉及一种能防除胶污染的退膜、除胶、化铜三合一工艺,步骤包括:①镭射加工:对表面有铜层的PCB板的表面进行粗糙化处理,然后对PCB板进行镭射钻孔;②微蚀:将已钻孔的PCB板浸入加有膜剥除剂的微蚀液中,微蚀的同时将棕化膜或粗化膜剥除;③镀铜前处理:对PCB板连续完成除胶和化铜制程。本发明通过在微蚀液中添加膜剥除剂,让微蚀过程中棕化膜/粗化膜被同时除去,以免其污染除胶槽药剂,也让钻孔之后的步骤可以在同一条流水线中完成,提高了生产效率,还避免了不同流水线之间搬运而导致的刮伤风险。

Description

能防除胶污染的退膜、除胶、化铜三合一工艺
技术领域
本发明涉及印刷电路板制造技术领域,特别涉及一种能防除胶污染的退膜、除胶、化铜三合一工艺。
背景技术
随着科技进步,社会的不断发展,PCB制造业面临着人力和物料成本不断增加所带来的巨大压力,在保证质量的前提下节约物料,降低生产成本输出,简化整合生产工艺流程已成为当前PCB制造业急需解决的问题,在目前生产过程中,HDI板经过激光钻孔后板面有棕化/粗化膜,如果直接经过除胶微蚀势必会污染槽液,故需要在除胶前做去膜流程后再经过除胶微蚀才不会污染槽液,目前业界所采用的方式均为激光钻孔后经过去棕化膜/粗化膜线后再出至除胶线。此种作业方式增加了人员搬运次数,产生了更多的刮伤风险,且需要耗费人力物力。
因此有必要开发一种低成本的印刷电路板制造方法来解决以上问题。
发明内容
本发明的主要目的在于提供一种能防除胶污染的退膜、除胶、化铜三合一工艺,能够避免除胶槽药剂被污染,也让退膜、除胶、化铜可以合并在同一条生产流线中完成。
本发明通过如下技术方案实现上述目的:一种能防除胶污染的退膜、除胶、化铜三合一工艺,步骤包括:
①镭射加工:对表面有铜层的PCB板的表面进行粗糙化处理,然后对PCB板进行镭射钻孔;
②微蚀:将已钻孔的PCB板浸入加有膜剥除剂的微蚀液中,微蚀的同时将棕化膜或粗化膜剥除;
③镀铜前处理:对PCB板连续完成除胶和化铜制程。
具体的,从微蚀到后续处理都采用同一条垂直输送线对PCB板进行输送。
具体的,所述粗糙化处理采用棕化剂或粗化剂。
具体的,所述微蚀液中包括5±2wt%硫酸、4±1wt%双氧水、4±1wt%膜剥除剂和小于40g/L的铜离子含量。
进一步的,所述微蚀中的咬蚀量控制在10~15mil。
本发明技术方案的有益效果是:
本发明通过在微蚀液中添加膜剥除剂,让微蚀过程中棕化膜/粗化膜被同时除去,以免其污染除胶槽药剂,也让钻孔之后的步骤可以在同一条流水线中完成,提高了生产效率,还避免了不同流水线之间搬运而导致的刮伤风险。
具体实施方式
下面结合具体实施例对本发明作进一步详细说明。
实施例:
本发明的一种能防除胶污染的退膜、除胶、化铜三合一工艺,其步骤包括:
①对PCB板的表面进行粗糙化处理,然后对PCB板进行镭射钻孔。粗糙化可采用棕化剂或粗化剂,其目的在于让PCB板的表面更利于激光能量汇集,提高钻孔效率,节省激光能量,降低PCB板的涨缩变形量。
②将已钻孔的PCB板浸入加有膜剥除剂的微蚀液中,微蚀的同时将棕化膜或粗化膜剥除。本步骤能同时完成铜层的减薄和棕化膜/粗化膜的除去,以免其污染除胶槽药剂。
③对PCB板连续完成除胶和化铜制程。这样使微蚀、除胶、化铜工艺连续化,提高了生产效率,还避免了PCB板在不同流水线之间搬运而导致的刮伤风险。化铜后,就可以再在PCB板的表面电镀新的铜层,并让不同层的线路导通。
从微蚀到后续处理都采用同一条垂直输送线对PCB板进行输送。垂直输送线能够让PCB板始终呈竖直状态,表面基本不会受到阻挡而影响处理效果,也方便冲洗。
微蚀液中包括5±2wt%硫酸、4±1wt%双氧水、4±1wt%膜剥除剂和小于40g/L的铜离子含量。按照经验,微蚀液以这样的配方能让PCB板的处理效果比较理想。
微蚀中的咬蚀量控制在10~15mil。这个咬蚀量可以确保棕化膜或粗化膜被完全剥除,又防止铜厚太薄而导致断路问题。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。

Claims (5)

1.一种能防除胶污染的退膜、除胶、化铜三合一工艺,其特征在于步骤包括:
①镭射加工:对表面有铜层的PCB板的表面进行粗糙化处理,然后对PCB板进行镭射钻孔;
②微蚀:将已钻孔的PCB板浸入加有膜剥除剂的微蚀液中,微蚀的同时将棕化膜或粗化膜剥除;
③镀铜前处理:对PCB板连续完成除胶和化铜制程。
2.根据权利要求1所述的能防除胶污染的退膜、除胶、化铜三合一工艺,其特征在于:从微蚀到后续处理都采用同一条垂直输送线对PCB板进行输送。
3.根据权利要求1所述的能防除胶污染的退膜、除胶、化铜三合一工艺,其特征在于:所述粗糙化处理采用棕化剂或粗化剂。
4.根据权利要求1所述的能防除胶污染的退膜、除胶、化铜三合一工艺,其特征在于:所述微蚀液中包括5±2wt%硫酸、4±1wt%双氧水、4±1wt%膜剥除剂和小于40g/L的铜离子含量。
5.根据权利要求4所述的能防除胶污染的退膜、除胶、化铜三合一工艺,其特征在于:所述微蚀中的咬蚀量控制在10~15mil。
CN202110042252.0A 2021-01-13 2021-01-13 能防除胶污染的退膜、除胶、化铜三合一工艺 Withdrawn CN112911804A (zh)

Priority Applications (5)

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CN202110042252.0A CN112911804A (zh) 2021-01-13 2021-01-13 能防除胶污染的退膜、除胶、化铜三合一工艺
TW110109192A TWI800804B (zh) 2021-01-13 2021-03-15 退膜、除膠、化銅三合一方法及其系統
TW110202765U TWM619792U (zh) 2021-01-13 2021-03-15 退膜、除膠、化銅三合一或除膠、化銅二合一系統
TW111117227A TW202243557A (zh) 2021-01-13 2021-03-15 除膠、化銅二合一系統
KR1020210077870A KR20220128919A (ko) 2021-01-13 2021-06-16 필름 박리, 탈검 및 코퍼링을 위한 쓰리 인 원 방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116634675A (zh) * 2023-05-25 2023-08-22 江苏博敏电子有限公司 一种消除任意层互连印刷线路板芯板层激光孔残胶的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112911804A (zh) * 2021-01-13 2021-06-04 柏承科技(昆山)股份有限公司 能防除胶污染的退膜、除胶、化铜三合一工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104349588A (zh) * 2013-08-02 2015-02-11 宏启胜精密电子(秦皇岛)有限公司 电路板及其制作方法
CN107371338B (zh) * 2016-05-13 2019-08-20 苏州卫鹏机电科技有限公司 一种超薄金属层的印刷线路板的制备方法
JP7449921B2 (ja) * 2019-03-27 2024-03-14 三井金属鉱業株式会社 プリント配線板用金属箔、キャリア付金属箔及び金属張積層板、並びにそれらを用いたプリント配線板の製造方法
CN111263527A (zh) * 2020-01-21 2020-06-09 柏承科技(昆山)股份有限公司 高密度印刷电路板制造方法
CN112911804A (zh) * 2021-01-13 2021-06-04 柏承科技(昆山)股份有限公司 能防除胶污染的退膜、除胶、化铜三合一工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116634675A (zh) * 2023-05-25 2023-08-22 江苏博敏电子有限公司 一种消除任意层互连印刷线路板芯板层激光孔残胶的方法
CN116634675B (zh) * 2023-05-25 2023-11-21 江苏博敏电子有限公司 一种消除任意层互连印刷线路板芯板层激光孔残胶的方法

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KR20220128919A (ko) 2022-09-22
TW202243557A (zh) 2022-11-01
TW202228483A (zh) 2022-07-16
TWI800804B (zh) 2023-05-01

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Application publication date: 20210604