Device Probing Microscope Camera
The primary use of the probing camera is to display small areas on electronic devices when making electrical connections using probes. The camera can also be used to capture images of the unit under test for use with the Picture Overlay software tool. See the Thermalyze HTML Help for detailed information about Picture Overlay.
Sentris probing cameras are USB3 Vision compliant color digital camera with 1280 x 960 pixel resolution, image capture rate of 30 frames-per-second and is USB powered.
The Semiconductor Probing Lens is used to probe contact sites down to 10 x 10 µm on semiconductor devices (see Figure 1). This lens comes with 0.5X, 1X, and 2X objectives. The lens has manual zoom and focus is performed by adjusting the height of the probing camera.
The 0.5X objective provides magnification from 0.3X (12 x 16 mm FOV) to 2.0X (1.6 x 2.4 mm FOV) with 175 mm working distance.
The 1X objective provides magnification from 0.6X (6 x 8 mm FOV) to 4.0X (0.8 x 1.2 mm FOV) with 82 mm working distance.
The 2X objective provides magnification from 1.2 X (3 x 4 mm FOV) to 8.0X (0.4 x 0.6 mm FOV) with 35 working distance.
Figure 1: Semiconductor probing lens
LED Ring Lights
To illuminate targets when capturing probing camera images, an LED Ring Light (see Figure 2) is mounted on the end of the Probing Camera lens. The LED Ring Lights provide cool lighting and does not require positional adjustment as it is always aimed directly at the target. An adjustable dimmer knob controls the amount of light illuminating the target.
Figure 1: LED ring light
Video camera (color, 1294 x 964 pix, 30 fps, USB 3.0 Vision)
Zoom lens (40-80 mm working distance, min FOV 0.4 x 0.6mm)
Camera cable (USB 3.0, Micro B screw lock/A, 3 m)
Ring light with lens mounting screws
LED control box (85-265VAC/50-60 Hz)
Loosen thumbscrews on the ring light and slip over the end of the Probing Zoom Lens (see Figure 1).
Make sure the thumbscrews align with the notch on the end of the lens and then tighten the thumbscrews.
Plug the LED control box into a power outlet.
Figure 1: Mount PN0293 LED ring light
LED Ring Light
Turn the dimmer knob to adjust the brightness.
Figure 1: LED Ring Light