Lighting Systems

The substrate and component to coincide are lit and can be dimmed separately to help find the best picture of the dual image overlay.

FINEPLACER^® standard lighting (not for A6 and A7) consists of two halogen lamps (10W) for illuminating the substrate, and another two for illuminating the underside of the component (head).

Head and target lamps are arranged twofold symmetrically to avoid asymmetrical reflections from rows of shiny balls or pads.

The bright field LED lighting 2x2 is recommended when working on large field or high magnification applications. The 2x2 LEDs ensure a consistent and nearly shadowless full area illumination of substrate and component.

Compared to standard halogen lighting, LED technology provides several benefits:

• reproducible lighting settings:
• lighting conditions similar to daylight
• low power consumption compared to standard halogen lighting
• stable colour temperature even with dimmed lighting
• high energy efficiency results in significantly reduced heat dissipation (no heating of sample)
• ten times longer lifespan than standard halogen
• significantly reduced costs of operation compared to standard halogen lighting
• no bulb replacement necessary
• no downtimes
• no extra light controller needed
• reduced cabling expense
• while using a digital camera, no flickering and no adjustment of white balance necessary for any lighting adjustments
• best lighting option for process documentation with digital photo and video equipment

Because of its positive characteristics a LED lighting is particularly suitable for use with a process camera. Therefore FINETECH offers an optional LED lighting equipment for the Inspection Video Module VARIO/ VARIO^Plus and the side camera video module.

Learn more about the LED Upgrade Kit to retrofit existing FINEPLACER^® systems with modern LED lighting solutions.

• optionally, FINETECH offfers LED lighting with co-axial assembly (light is directly fed into the optical axis)
• recommended for challenging samples with planar, highly reflecting surface
• best-possible, very detailed illumination, significantly increase in contrast

Using camera systems with very high magnification or handling complicated chips or substrates may demand very bright light that the standard lighting cannot provide. Using fibre optics, the light of more than a 100 W halogen lamp is given without heating up the chips in an uncontrolled way.

If fibre optic lighting is required, the FINEPLACER^® will be equipped with fibre optic conductors instead of standard halogen lamps; 2 arms directed to the substrate and 2 arms to the component.

Achieving visible representation of normally hardly perceptible Indium Tin Oxide (ITO) structures on glass (e.g. LCD Displays), or of very small components, this special illumi-nating device feeds the light directly into the optical axis of the system.

Achieving visible representation of normally hardly perceptible indium Tin Oxide (ITO) structures on glass (i.e. LCD displays) or of very small components, this special illuminating device feeds the light directly into the optical axis of the system. It uses one fibre optic lamp with a separate illumination control.