Reliability Evaluation

Various Reliability Evaluation Tests

As a Third party testing organization certified with ISO/IEC17025, we arrange various evaluation tests such as weathering test (including Migration test, Thermal Shock test, High Accelerated Temperature, and Humidity Stress test), Failure analysis (including appearance, microsection and dimensional test), Electrical performance test (including Insulation resistance, withstanding voltage), Mechanical performance test (including Cross-cut test, Propagation Tear Strength, Peel Strength test), Flexibility test, and Foldability test.

Solder reflow test

Due to environmental regulations in the EU, we conduct a reflow mountability evaluation test to support confirming process and improvement of lead-free soldering as well as failure analysis and analysis of solder joint.

Solder reflow tes

 

Solder heat resistance test

This test is to confirm if there is any abnormality on the sample surface by immersing the sample in a solder bath at a specified temperature for printed wiring boards, flexible printed wiring boards, copper-clad laminates for printed wiring boards, copper-clad laminates for flexible printed wiring boards, and evaluation for copper erosion into the solder.

Solder heat resistance test

 

Joint strength test

With the tip jig based on the part's shape, we conduct pull tests for QFP leads and the shear test of soldered joints for chip part. Perfect for reliability evaluation of solder joint after the thermal shock test when you change the condition of soldering (reflow) and material.

Joint strength test

 

Migration test

Ionic migration is a phenomenon where a metallic material contacts with an insulating material and migrates to the surface or inside of the insulating material under an electric field and moisture absorption to cause insulation failure. Evaluates fluctuation of characteristic deterioration by long term energy supply inside the tank kept at a constant temperature and humidity. Applied voltage range is from 3V to 1000V.

Migration test

 

Highly Accelerated temperature and humidity Stress Test—Pressure Cooker Test

HAST (Highly Accelerated temperature and humidity Stress Test) is an environmental test of electronic devices and measures stress under accelerated aging condition in unsaturated pressurized vaporous condition (85%RH) specified in IEC60068-2-66. Further accelerated testing can be conducted by PCT (Pressure Cooker Test) under saturated condition (100%RH).

HAST Highly Accelerated temperature and humidity
                      Stress Test—Pressure Cooker Test

 

Thermal shock test

Evaluates durability against temperature change on parts joint composed of some materials having different coefficient of thermal expansion on printed wiring board by stressing with rapid thermal shock applying low and high temperature alternation.

Thermal shock test

 

Flexibility test・Foldability test

Evaluates flexibility and foldability of flexible printed wiring board and material. It also evaluates bending durability of film products. Testing condition range: −20℃ – 90℃

Flexibility test・Foldability test

Voltage-time test

Evaluates durability of insulated material and parts by applying high-voltage for long term. Measure holding-time applying specified voltage under accelerated aging condition and estimates the life time with approximate straight line.

Voltage-time test

 

SEM-EDX analysis

Using an electron beam, SEM visualizes contrast of the fine unevenness on samples that cannot be observed optically as well as differences in composition. Elemental analysis can be done with EDX. Effective for analyzing the cause of soldering defects on surfaces of pad electrodes, measuring dimension of thin-layer structures such as confirmation of the thickness of the solder leveling.

SEM-EDX analysis

 

Thermal resistance measurement for Heat Dissipation Board

Based on the TMC LED02TG, IEC 61189-3-913, it evaluates thermal resistance and heat dissipation performance of a sample in the two directions: planar and thickness. Effective for heat dissipation evaluation of thin sample which is hard to evaluate with laser flash and of three-dimensional products such as heat sinks.

Thermal resistance measurement for Heat
                      Dissipation Board

Standards

Test Standard number Standard Target object
Anti-voltage test / Dielectric breakdown test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring board
JIS C 6471 Test methods of copper-clad laminates for flexible printed wiring boards copper-clad laminates for flexible printed wiring boards
JIS C 6481 Test methods of copper-clad laminates for printed wiring boards copper-clad laminates for printed wiring boards
IPC-TM-650 2.5.6.3 Dielectric Breakdown Voltage and Dielectric Strength Insulating material
Surface volume resistance test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
JIS C 6471 Test methods of copper-clad laminates for flexible printed wiring boards copper-clad laminates for flexible printed wiring boards
JIS C 6481 >Test methods of copper-clad laminates for printed wiring boards copper-clad laminates for printed wiring boards
IPC-TM-650 2.5.17 Volume Resistivity and Surface Resistance of Printed Wiring Materials Printed wiring board material
Connection solder strength test of lead JIS Z 3198 Lead-free solder test method Lead-free solder mounting parts
JIS Z 3198-7

Flexibility test JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
Foldability test JIS C 6471 Test methods of copper-clad laminates for flexible printed wiring boards copper-clad laminates for flexible printed wiring boards
Cross section observation
SEM-EDX
Gas phase thermal shock test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
IPC-TM-650 2.6.7 Thermal Shock & Continuity, Printed Board Substrate, insulating material, solder paste
Hot oil test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
IPC-TM-650 2.6.7 Thermal Shock & Continuity, Printed Board Substrate, insulating material, solder paste
Migration test JPCA-ET01 – 07-2007 Environmental test method for printed wiring board Substrate, insulation material
JIS Z 3197 Soldering flux test method Soldering flux
JIS Z 3284 Solder paste test method Solder paste
JIS C 60068 Environmental test method -Electricity and electronics- Electrical and electronic parts
IPC-TM-650 2.6.14.1 Electrochemical Migration Resistance Test Substrate, insulating material, solder paste
HAST test IEC60068-2-66 Test methods – Test Cx: Damp heat, steady state Small electronic parts
JIS C 0096 Environmental test method -Electricity and electronics- Damp heat, steady state (unsaturated pressurized vapour) Small electronic parts
JPCA-ET08 Environmental test method for printed wiring boards - Damp heat, steady state (unsaturated pressurized vapour) Small electronic parts
PCT test JPCA-ET08 Environmental test method for printed wiring boards - Damp heat, steady state (unsaturated pressurized vapour) Substrate, insulation material
Solder reflow test JIS C 5012 Test methods for printed wiring boards printed wiring boards
Solder heat resistance test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
JIS C 6481 Test methods of copper-clad laminates for printed wiring boards copper-clad laminates for printed wiring boards
JIS C 6471 Test methods of copper-clad laminates for flexible printed wiring boards flexible printed wiring boards
IPC-TM-650 2.4.49 Solder Pool Test Substrate material
Copper foil peel strength test JIS C 5012 Test methods for printed wiring boards printed wiring boards
JIS C 5016 Test methods for flexible printed wiring boards flexible printed wiring boards
JIS C 6481 Test methods of copper-clad laminates for printed wiring boards copper-clad laminates for printed wiring boards
JIS C 6471 Test methods of copper-clad laminates for flexible printed wiring boards flexible printed wiring boards
Relative permittivity / permittivity test ASTM D150 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation Insulating material
JIS C 6481 Test methods of copper-clad laminates for flexible printed wiring boards copper-clad laminates for flexible printed wiring boards
Printed Electronics Reliability Assessment IPC/JPCA-4921 Requirements for Printed Electronics Base Materials (Substrates) Printed electronics base material
IPC/JPCA-4591 Requirements for Printed Electronics Functional Conductive Materials Printed electronics base material
V-t test
Thermal resistance measurement of heat dissipation substrate IEC 61189-3-913 Test methods for electrical materials, printed boards and other interconnection structures and assemblies – Part 3-913: Test method for thermal conductivity of electronic circuit boards for high-brightness LEDs LED heat dissipation board
JPCA-TMC-LED02TG-2015 Guidelines for testing the heat dissipation characteristics of electronic circuit boards for high brightness LEDs LED heat dissipation board
JPCA-TMC-HR01S-2017 High heat dissipation electronic circuit board for automotive electrical components and power devices High heat dissipation electronic circuit board for automotive electrical components and power devices
JPCA-TMC-HR02T-2017 Test method for high heat dissipation electronic circuit board for automotive electrical components and power devices High heat dissipation electronic circuit board for automotive electrical components and power devices

Contact information
PIC: Tomoki Sumida (Mr.)
TEL:+81-3-3727-7111
Contact
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