JPH01294871A - Method for controlling copper foil blackening solution - Google Patents

Method for controlling copper foil blackening solution

Info

Publication number
JPH01294871A
JPH01294871A JP12645588A JP12645588A JPH01294871A JP H01294871 A JPH01294871 A JP H01294871A JP 12645588 A JP12645588 A JP 12645588A JP 12645588 A JP12645588 A JP 12645588A JP H01294871 A JPH01294871 A JP H01294871A
Authority
JP
Japan
Prior art keywords
copper foil
potassium persulfate
soln
blackening
sodium hydroxide
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.)
Pending
Application number
JP12645588A
Other languages
Japanese (ja)
Inventor
Yoshinori Urakuchi
浦口 良範
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP12645588A priority Critical patent/JPH01294871A/en
Publication of JPH01294871A publication Critical patent/JPH01294871A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/63Treatment of copper or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)

Abstract

PURPOSE:To stabilize a copper foil blackening soln., to prolong the service life of the soln. and to enable continuous use by replenishing the blackening soln. contg. potassium persulfate as an oxidizing agent with potassium persulfate and sodium hydroxide in accordance with the area of copper foil blackened. CONSTITUTION:A copper foil blackening soln. contg. potassium persulfate as an oxidizing agent is replenished with potassium persulfate and sodium hydroxide in accordance with the area of copper foil blackened. The blackening soln. is preferably replenished with 750-1,250g potassium persulfate and 400-600g sodium hydroxide per 50m<2> area of copper foil blackened. The blackening soln. is stabilized, the service life of the soln. is prolonged and continuous use is enabled.

Description

【発明の詳細な説明】 (産業上の利用分計) 本発明は′醒気機器、計算機器、通信機器等に川すられ
るプリント配線板の夷造工程中のm箔黒化処理液の9r
理方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Utilization) The present invention is directed to the use of 9R of m-foil blackening treatment liquid during the fabrication process of printed wiring boards used in ventilation equipment, computing equipment, communication equipment, etc.
It is related to the process method.

〔従来の技術〕[Conventional technology]

従来、プリイト配線板のシ造工程における、内I−鋼箔
の黒化処理液におりで、酸化剤として過硫酸カリウムを
用いる場合は、液中の酸化剤の自己分解により液組成を
安定管理することが困難で、液をパ噌チ処理毎に廃棄し
たり、一定処理時間毎に液蓋の1/3〜1/2を廃棄し
、廃棄分を新規追加したり、手分析により酸化剤減少値
を解明し遂次新規追加して安定管理を狙ってbた。
Conventionally, when potassium persulfate is used as an oxidizing agent in the blackening treatment solution for steel foil in the manufacturing process of printed circuit boards, the composition of the solution can be stably controlled by self-decomposition of the oxidizing agent in the solution. It is difficult to remove the oxidizing agent by discarding the liquid after each patch treatment, or by discarding 1/3 to 1/2 of the liquid cap at a certain processing time and adding the discarded portion, or by manual analysis. We clarified the decreased value and added new ones one after another, aiming for stable management.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の技術で述べたように、バ咋チ処理或は液の一部を
廃棄、新規追加、遂次新規追加する方法は液の安定性、
長寿命性に欠けるとAう問題があまた0本発明は従来の
技術における上述の問題点に鑑みてなされたもので、そ
の目的とするところは、銅箔黒化処理液の安定性、長寿
命化により液の連続使用を可能にする銅箔黒化処理液の
管理方法を提供することにある。
As mentioned in the conventional technology, the method of removing liquid, discarding a part of the liquid, adding new one, and adding new one in succession depends on the stability of the liquid,
The present invention has been made in view of the above-mentioned problems in the conventional technology, and its purpose is to improve the stability and long life of the copper foil blackening treatment solution. An object of the present invention is to provide a method for managing a copper foil blackening treatment solution that enables continuous use of the solution by oxidation.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は酸化剤として過硫酸力11ウムを用いる銅箔黒
化処理液において、鋼箔処理面積に対応して過硫酸カリ
ウムと水酸化ナトリウムとを補給することを特徴とする
鋼箔黒化処理液の管理方法のため、上記目的を達成する
ことができたもので、以下本発明の詳細な説明する。
The present invention is a steel foil blackening treatment characterized in that potassium persulfate and sodium hydroxide are replenished in accordance with the steel foil treatment area in a copper foil blackening treatment solution using 11 um persulfate as an oxidizing agent. Due to the liquid management method, the above object can be achieved, and the present invention will be described in detail below.

本発明は酸化剤として過硫酸カリウムを用する銅箔黒化
処理銭金てに適用することができるもので、銅箔処理面
積に対応して過硫酸カリウムと水酸化ナト11ウムとを
補給するもので、銅箔処理面積は液量の大きさ等に応じ
て選択することができ、それに対応して補給しも変化す
るが、好ましくは銅箔処理面積50ゴ毎に、過硫酸カリ
ウム750〜1250 g、水酸化ナトリウム400〜
600 fを補給することが望ましA、過硫酸力11ウ
ム、水酸化ナトリウムの童がこの範囲を外れると処理時
間の延長化や銅箔の表面状態が粗大になる傾向にあり好
ましくなり0なお本発明の黒化処理液には電解餉f6、
圧il#、1M箔の如何を問わす銅箔全般を用すること
ができる。
The present invention can be applied to copper foil blackening treatment coins using potassium persulfate as an oxidizing agent, and potassium persulfate and 11 um of sodium hydroxide are replenished in accordance with the area of copper foil treatment. The area to be treated with copper foil can be selected depending on the amount of liquid, etc., and the amount of replenishment will also change accordingly, but preferably 750~750~ 1250 g, sodium hydroxide 400~
It is desirable to replenish 600 f of A, persulfate power of 11 um, and sodium hydroxide. The blackening treatment solution of the present invention includes electrolyte f6,
Any copper foil can be used, whether it is il# or 1M foil.

以下本発明を実施例にもとづbて説明する。The present invention will be explained below based on examples.

実施例 厚さ35ミクロンの銅回路層を有する両面回路内層材を
、過硫酸力11ウム、水酸化ナトIIウムを含有する黒
化処理液で黒化処理したが、ψ苗処理面積50ゴ毎に過
硫酸カリウム100H’ 、水酸化ナトIIウムsoo
 fを黒化処理液に補給した。
Example A double-sided circuit inner layer material having a copper circuit layer with a thickness of 35 microns was blackened with a blackening treatment solution containing 11 um persulfate and sodium II hydroxide. potassium persulfate 100H', sodium hydroxide soo
f was replenished into the blackening treatment solution.

比較例 過硫酸カリウム、水酸化ナトリウムを含有する黒化処理
液で厚さ35ミクロンの銅回路I−を有する両面回路内
J−材を処理し、銅回路I―の黒色が鮮明でなくなった
時期で処理を中止し、液を廃莱し新規液と入れ替えた。
Comparative Example: A double-sided circuit J- material with a 35-micron-thick copper circuit I- was treated with a blackening treatment solution containing potassium persulfate and sodium hydroxide, and the time when the black color of the copper circuit I- was no longer clear. The process was stopped, the liquid was discarded, and it was replaced with new liquid.

実施例及び比較例の液の安定性、処理廿は第1表のよう
である。
The stability and processing times of the liquids of Examples and Comparative Examples are shown in Table 1.

〔発明の効果〕〔Effect of the invention〕

本発明は上述した如く構成されてAる。特許請求の範り
m第1項、第2項に記載した構成を有−する銅箔黒化処
理液の管理方法においては、黒化処理液の安定性、長寿
命化、連続使用を達成できる効果を有してAる。
The present invention is constructed as described above. In the method for managing a copper foil blackening treatment liquid having the structure described in claims 1 and 2, it is possible to achieve stability, long life, and continuous use of the blackening treatment liquid. It has an effect.

Claims (2)

【特許請求の範囲】[Claims] (1)酸化剤として過硫酸カリウムを用いる銅箔黒化処
理液において、銅箔処理面積に対応して過硫酸カリウム
と水酸化ナトリウムとを補給することを特徴とする銅箔
黒化処理液の管理方法。
(1) A copper foil blackening treatment solution that uses potassium persulfate as an oxidizing agent, and is characterized in that potassium persulfate and sodium hydroxide are replenished in accordance with the copper foil treatment area. Management method.
(2)銅箔処理面積50m^2毎に、過硫酸カリウム7
50〜1250g、水酸化ナトリウム400〜600g
を補給することを特徴とする特許請求の範囲第1項記載
の銅箔黒化処理液の管理方法。
(2) For every 50m^2 of copper foil treatment area, add 7 parts of potassium persulfate.
50-1250g, sodium hydroxide 400-600g
A method for managing a copper foil blackening treatment liquid according to claim 1, characterized in that the copper foil blackening treatment liquid is replenished with the following:
JP12645588A 1988-05-23 1988-05-23 Method for controlling copper foil blackening solution Pending JPH01294871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12645588A JPH01294871A (en) 1988-05-23 1988-05-23 Method for controlling copper foil blackening solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12645588A JPH01294871A (en) 1988-05-23 1988-05-23 Method for controlling copper foil blackening solution

Publications (1)

Publication Number Publication Date
JPH01294871A true JPH01294871A (en) 1989-11-28

Family

ID=14935647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12645588A Pending JPH01294871A (en) 1988-05-23 1988-05-23 Method for controlling copper foil blackening solution

Country Status (1)

Country Link
JP (1) JPH01294871A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009084652A (en) * 2007-10-01 2009-04-23 Hitachi Chem Co Ltd Oxidation treatment method and oxidation treatment liquid for metal
CN104060262A (en) * 2014-05-26 2014-09-24 安徽红桥金属制造有限公司 Novel process for treating cast piece surface blackening
KR101699790B1 (en) * 2016-08-01 2017-01-25 와이엠티 주식회사 Composition for blackening metal thin film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009084652A (en) * 2007-10-01 2009-04-23 Hitachi Chem Co Ltd Oxidation treatment method and oxidation treatment liquid for metal
CN104060262A (en) * 2014-05-26 2014-09-24 安徽红桥金属制造有限公司 Novel process for treating cast piece surface blackening
KR101699790B1 (en) * 2016-08-01 2017-01-25 와이엠티 주식회사 Composition for blackening metal thin film

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