JPS57155361A - Simple electroless plating monitor - Google Patents
Simple electroless plating monitorInfo
- Publication number
- JPS57155361A JPS57155361A JP3862981A JP3862981A JPS57155361A JP S57155361 A JPS57155361 A JP S57155361A JP 3862981 A JP3862981 A JP 3862981A JP 3862981 A JP3862981 A JP 3862981A JP S57155361 A JPS57155361 A JP S57155361A
- Authority
- JP
- Japan
- Prior art keywords
- electric
- capacitor
- displaying
- electric potential
- plating
- 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
Landscapes
- Chemically Coating (AREA)
Abstract
PURPOSE: To monitor quickly and simply factors such as the plating rate, etc., by giving electric charge to a matter to be plated, generating timing pulses in accordance with its electric potential change, and actuating a measuring-calculation-displaying mechanism.
CONSTITUTION: The material to be plated or a test piece that is dipped into a plating bath is given momentarily electrical charge stored in a capacitor 2. The electric difference potential associated with this is inputted into an electrical potential difference mechanism 4, and the electric potential changed part is inputted into a comparator 5. In accordance with the decay of the electric potential changed part, the gate is opened or closed, and during the opening of the gate, the measuring-calculation displaying mechanism 10 is actuated by signals generated by a timing pulse generator 6. The mechanism 10 comprises a capacitor charging circuit including a capacitor 14, a relay 12 and a resistor 13, a voltage follower comprising an operational amplifier 15, a holding circuit 16, a calculating circuit 17 and a displaying section 18, and calculates the electroless deposition current to display it as a plating speed rate factor.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3862981A JPS57155361A (en) | 1981-03-19 | 1981-03-19 | Simple electroless plating monitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3862981A JPS57155361A (en) | 1981-03-19 | 1981-03-19 | Simple electroless plating monitor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57155361A true JPS57155361A (en) | 1982-09-25 |
Family
ID=12530527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3862981A Pending JPS57155361A (en) | 1981-03-19 | 1981-03-19 | Simple electroless plating monitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57155361A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226171A (en) * | 1983-06-07 | 1984-12-19 | Brother Ind Ltd | Automatic monitoring device for electroless plating speed |
-
1981
- 1981-03-19 JP JP3862981A patent/JPS57155361A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226171A (en) * | 1983-06-07 | 1984-12-19 | Brother Ind Ltd | Automatic monitoring device for electroless plating speed |
JPH0359142B2 (en) * | 1983-06-07 | 1991-09-09 | Brother Ind Ltd |
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