Why Use Lasers?

Why Use Lasers?

(1)  Material Selective

- Wavelength can be absorbed selectively

- Localized thermal effects controlled (low) thermal budget

- Non-contact processes less expensive consumables

- Light can be focused within or through transparent materials at interfaces between materials to mark, ablate, lift-off or weaken (used in thin film solar, stealth dicing, glass cutting, flap cutting, laser lift off)

(2)  High Precision

- UV laser light can be tightly focused to create very small feature sizes with resolution down to micrometers or less

- Ultra short pulses with high peak intensities can be used to ablate material/features that cannot be cut with any blade/drill

- Feature depth control on nanometer scale

- Light scattering can be used to detect nm features or defects

(3)  Scalability / Productivity / Lower Costs

- High throughput laser processes reduce costs

- Large substrates (e.g. G8~G10 glass)

- Fewer process steps

- Eco-Friendly = No Wet Chemistry