Sample and analysis objective
When most of the package or adjacent regions must be preserved, first define the analysis window and exclusion zones, then evaluate protective materials and the removal path.
| Item | Case information |
|---|---|
| Processing strategy | Local window and surrounding masking |
| Protection method | Suitable peelable protective material |
| Key inspections | Window boundaries, neighboring structures and cleanliness after removal of protection |
Processing record
The source shows two samples labeled good unit and failed unit, together with protective material placed around a board-mounted device. Good / failed refers to sample condition, not decapsulation success rate.
Actual sample images
Result review priorities
- Record window and masking boundaries; do not interpret sample labels as process acceptance results.
- Confirm compatibility between the protective material, sample materials, temperature and downstream analysis.
- After removing protection, inspect residue, surfaces and neighboring structures.