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 alloyInfo
- 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
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
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) |
-
1979
- 1979-05-29 JP JP6660679A patent/JPS55158293A/en active Pending
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