JPS55158293A - Control method for deposited alloy composition of electrplating of gold tin base alloy - Google Patents

Control method for deposited alloy composition of electrplating of gold tin base alloy

Info

Publication number
JPS55158293A
JPS55158293A JP6660679A JP6660679A JPS55158293A JP S55158293 A JPS55158293 A JP S55158293A JP 6660679 A JP6660679 A JP 6660679A JP 6660679 A JP6660679 A JP 6660679A JP S55158293 A JPS55158293 A JP S55158293A
Authority
JP
Japan
Prior art keywords
potential
electrode
cathode
kept
alloy composition
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
JP6660679A
Other languages
Japanese (ja)
Inventor
Eiji Togawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP6660679A priority Critical patent/JPS55158293A/en
Publication of JPS55158293A publication Critical patent/JPS55158293A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable to control deposited alloy compositon, by using the potentiostat as electrolytic power source at the electroplating of gold.tin base alloy.
CONSTITUTION: Potentiostat used for a constant electric potential electrolytic apparatus, is constructed by the control part composed of the potential set up part 1 and the direct current amplifier 2 and the operation part composed of the electric power amplifier 3. Terminal drawn out from the above apparatus, is connected with the anode 4, cathode 5 of the plating liquid 6 and the reference electrode 9. Calomel electrode is used for the electrode 9 normally and the electrode 9 is dipped in the saturated potassium chloride solution 8. The reference electrode is connected with the liquid 6 by the ion transmission solid body 7. When the cathode potential is set up as Es at the potential set up part, each part of control and operation is acted so as to be the potential E between the cathode 5 and the electrode 9 kept at Es. Accordingly, the cathode 5 is kept at a constant potential for the electrode 9 and also, current density is kept constant because the potential and current density are corresponded to 1:1. Consequently, deposited alloy composition is controlled by previously examining the relation between the potential and deposited alloy composition and determining the set up potential.
COPYRIGHT: (C)1980,JPO&Japio
JP6660679A 1979-05-29 1979-05-29 Control method for deposited alloy composition of electrplating of gold tin base alloy Pending JPS55158293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6660679A JPS55158293A (en) 1979-05-29 1979-05-29 Control method for deposited alloy composition of electrplating of gold tin base alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6660679A JPS55158293A (en) 1979-05-29 1979-05-29 Control method for deposited alloy composition of electrplating of gold tin base alloy

Publications (1)

Publication Number Publication Date
JPS55158293A true JPS55158293A (en) 1980-12-09

Family

ID=13320726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6660679A Pending JPS55158293A (en) 1979-05-29 1979-05-29 Control method for deposited alloy composition of electrplating of gold tin base alloy

Country Status (1)

Country Link
JP (1) JPS55158293A (en)

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