BGA Layer by Layer Construction Analysis
Construction Analysis documents the critical parameters of the materials within a device in order to verify specifications. Cross-sections of devices are performed at specific locations to document layer stack-up, via construction, and material composition. Some devices are delayered to reveal the structure of internal layers. All lines and spaces are measured.
Typical Applications
Quality documentation
Supplier evaluation
Non-conformance verification
Failure analysis
Reliability qualification
Technology cloning
Destructive Physical Analysis (DPA)
Intellectual property violation
Counterfeit detection
Techniques
X-Ray imaging
Acoustic microscopy
Electron microscopy with EDX
X-Ray Fluorescence (XRF) spectroscopy
Raman spectroscopy
FTIR spectroscopy
Confocal Laser Scanning Microscopy (CLSM)
![Cross-Sectioning for FA](https://10.194.16.109/wp-content/uploads/2019/01/301PTV_005K.jpg)
Cross-section showing core and blind via
![Cross-Sectioning for FA](https://10.194.16.109/wp-content/uploads/2019/01/301-M2_via_to_trace_and_via_radius_20x.jpg)
Measurements of critical dimensions on internal layer
![Cross-Sectioning for FA](https://10.194.16.109/wp-content/uploads/2019/01/301-IMC-at-package-side-20KV.jpg)
EDX spectrum of intermetallic formation
![Cross-Sectioning for FA](https://10.194.16.109/wp-content/uploads/2019/01/301-DSCN0001217.jpg)
Internal layer of BGA package