JPS55155230A - Evaluation apparatus for fatigue and rupture of soldered joint - Google Patents
Evaluation apparatus for fatigue and rupture of soldered jointInfo
- Publication number
- JPS55155230A JPS55155230A JP6288579A JP6288579A JPS55155230A JP S55155230 A JPS55155230 A JP S55155230A JP 6288579 A JP6288579 A JP 6288579A JP 6288579 A JP6288579 A JP 6288579A JP S55155230 A JPS55155230 A JP S55155230A
- Authority
- JP
- Japan
- Prior art keywords
- rupture
- fatigue
- waves
- circuit
- detected
- 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 easy, quick and accurate evaluation of the fatigue and the rupture by properly processing the detected accoustic emission (AE) waves to be generated by the fatigue and rupture when the thermal cycle is applied on the soldered joints.
CONSTITUTION: The thermal cycle is applied on the sample 3 on which the substrate 3 is soldered with the lead wire 4 fixed on the chamber 2 of the thermal tester 1 through a heater 7 to be controlled with the temperature controller 9. The joint of the wire generates the AE waves corresponding to the fatigue and the rupture. The waves are detected with an AE sensor 12 via the wave guide 11 and converted into the signal corresponding to the AE waves to the indicated on the graphic display 19 with the memory circuit 16 and the Fourier analyzer 17 by way of the BFP14, recorded on the XY recorder through the waveheight distribution analyzing circuit 18, the peak hole circuit 22, the effective voltmeter 23, the counting circuit 24 and the like, or displayed in the waveform with the oscilloscope. Thus, the evalution of the fatigue and rupture can be done easily, quickly and accurately without microscopic observation of the broken surface.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6288579A JPS55155230A (en) | 1979-05-22 | 1979-05-22 | Evaluation apparatus for fatigue and rupture of soldered joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6288579A JPS55155230A (en) | 1979-05-22 | 1979-05-22 | Evaluation apparatus for fatigue and rupture of soldered joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55155230A true JPS55155230A (en) | 1980-12-03 |
Family
ID=13213152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6288579A Pending JPS55155230A (en) | 1979-05-22 | 1979-05-22 | Evaluation apparatus for fatigue and rupture of soldered joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55155230A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6271829A (en) * | 1985-09-25 | 1987-04-02 | Mitsubishi Nuclear Fuel Co Ltd | Fatigue testing instrument for material |
-
1979
- 1979-05-22 JP JP6288579A patent/JPS55155230A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6271829A (en) * | 1985-09-25 | 1987-04-02 | Mitsubishi Nuclear Fuel Co Ltd | Fatigue testing instrument for material |
JPH0457214B2 (en) * | 1985-09-25 | 1992-09-10 | Mitsubishi Genshi Nenryo Kk |
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