Reliability testing

The quality and reliability of a product are substantially affected by product design. When designing a product, Seiko NPC uses the quality and reliability data, which we have accumulated over the years, taking your operating conditions into consideration. Then we check the product using the reliability test that is in compliance with “JEITA EIAJ ED-4701” or “MIL-STD-883”. We periodically collect the test results and feed athem back to the design department and the product process department in an effort to improve reliability. The following table shows the requirements of the standard reliability test of Seiko NPC.

* Regarding optical devices, reliability test condition is differ from these list.
Please inquire to our sales.

Reliability test requirements (standard)

No. TEST ITEM TEST METHOD CRITERION
REFERENCE STANDARD CONDITION TEST
TIME
1 High Temperature Storage JEITA
EIAJ ED-4701/201
MIL-STD-883 1008.2
Ta=125°C 1000h It is due to the electric characteristic standard.
2 High Temperature Operating Life JEITA
EIAJ ED-4701/101
MIL-STD-883 1005.8
Ta=125°C
VDD=MAX
1000h It is due to the electric characteristic standard.
3 Temperature Humidity Bias JEITA
EIAJ ED-4701/102
MIL-STD-883 1005.2
Ta=85°C
RH=85%
VDD=MAX*1
1000h It is due to the electric characteristic standard.
4 Pressure Cooker JEITA
EIAJ ED-4701/102
Ta=125°C
RH=85%
2 atm*1
100h It is due to the electric characteristic standard.
5 Temperature Cycle JEITA
EIAJ ED-4701/105
MIL-STD-883 1010.7
-55°C/RT/125°C
(30min/5min/
30min)
100
cycle
It is due to the electric characteristic standard.
6 Resistance to Soldering Heat JEITA
EIAJ ED-4701/301
JEITA
EIAJ ED-4701-302
JIS-C0050,C0054
IR Reflow
Ta=255±5°C
2 Times*2
10sec The malfunction on the outward appearance isn’t admitted and meets a specification electrically.
7 Solderability JEITA
EIAJ ED-4701/303
MIL-STD-883 2003.7
Ta=240°C 3sec Equal to or more than 95% of the outerlead is matted.
8 Electrostatic Discharges JEITA
EIAJ ED-4701/304
(MM)
Capacitor charge method
C=200pF
R=0Ω
5 pulses applied
Ta=RT
Positive and negative strengths
of all pins
All terminal: 200V
It is due to the electric characteristic standard.
MIL-STD-883 3015.7(HBM) Capacitor charge method
C=100pF
R=1.5kΩ
3 pulses applied
Ta=RT
Positive and negative strengths of all pins
All terminal: 2000V
9 Latch-up JEITA
EIAJ ED-4701/306
Current input method
VDD=MAX
Ta=RT
To VDD pin:+pulse
To VSS pin:-pulse
Impressed condition: Pulse width: 10msec
All I/O terminal: 100mA
It is due to the electric characteristic standard.

*1 Pre-condition:85°C/85% 168hrs→Infrared reflow Ta=255±5°C 10sec 2Times(only SMD)
*2 Pre-condition:85°C/85% 168hrs(only SMD)