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Decapsulating IC Packages with a Laser
Status: Planned ( Tech Tree)
Commercial Decapsulation Systems
Commercially available laser-based decapsulation systems all seem to use fibre lasers with a wavelength of 1064 nm and power of around 20 W to 30 W. They all provide the ability to control both the pulse width as well as the pulse repetition frequency. The systems listed below all list the following potential applications:
- Semiconductor failure analysis
- IC decapsulation and removing large filler mold compounds, such as resin and plastics
- Expose Wire Bonds
Cheap Laser Engravers
| ComMarker B6 MOPA | omtech JPT MOPA | |
|---|---|---|
| Price | $2,459 (14.11.2026) | €4,199.99 |
| Z-Axis | Motorized | Motorized |
| Working Surface | - | 150 x 150 mm |
| Controller Board | BJJCZ LMCV4 | ? |
| Laser | JPT MOPA | JPT MOPA |
| Type | Fibre | Fibre |
| Nominal Average Output Power | 60 W | 60 W |
| Central Emission Wavelength | 1064 nm | 1064 nm |
| Pulse Width | 2 ns - 500 ns | 2 ns - 500 ns |
| Pulse Repetition Frequency | 1 kHz - 4000 kHz | 1 kHz - 4000 kHz |
| Maximum Pulse Energy | 2 mJ |
Prior Art
On the Siliconpr0n wiki, there is a page that losely documents previous experiments with fibre, CO2, and blue light (~ 450 nm). The TLDR:
- Fibre: bulk material for standard packages (PDIP, COB, etc.). Laser apparently damages the die surface, if all packaging material is removed.
- CO2: Mixed results, with fused glass spheres becoming a problem. Seems to work for COB.
- Blue Light: can work for all package types but apparently slow.
Further Resources
- Effective Laser Decapsulation Employing the Digital ICO Laser and HAZ-Methodology (look into /documents in the NAS for a PDF copy)
- Laser Engraving Power, Speed & Frequency Explained A very basic guide into laser engraving featuring MOPA fibre lasers.