Soft Error Evaluation
These days, soft errors do not only represent a problem for equipment demanding high reliability such as large capacity routers and servers,
aircrafts and medical instruments, but also for automotive and household appliances, in that need for wide-spread response becomes increasingly inevitable.
We at OKI Engineering provide soft error evaluations for semiconductor memories.
Soft Error Test Service
- We can easily carry out soft error tests with tractable Americium.
- Specimens' operating conditions can be changed easily using an LSI tester.
- We carry out everything from opening to measurement of the specimen.
Soft Error Test Outline
- Open and expose the IC chip.
- Irradiate α-rays onto the exposed surface and observe the behavior.
![Soft Error Test Outline](img/lsi.gif)
Soft Error Test Outline
Soft Error Test Flow - Test Result (ex. SRAM)
![Reliability Test](img/lsi2.gif)
Soft Error Test Result (ex. SRAM)
- Obtain specimen
- X-ray examination of opened surface
- Manufacture of test board including test program
- Pre-operation check *1
- Opening
- Post-opening check *2
- Soft error test
- Report result
- *1: Confirm soundness of unopened samples.
- *2: Confirm absence of defects after opening.