How Does a Digital Microscope Make Inspection Workflow Efficient?
The Leica DVM6 makes the workflow of inspection, QC/QA, FA, and R&D efficient thanks to multiple important functions:
- Fast and easy microscope head tilting and sample rotation;
- Mosaic overviews of sample, e.g. XY & XYZ stitching;
- Integrated LED (light-emitting diode) ring light and coaxial illumination and backlight accessory providing versatile contrast to enhance sample features;
- High dynamic range (HDR) capability for imaging [1, 2];
- Intuitive software for microscope operation and data analysis ;
- Efficient, simple way to change magnification over the entire range (12:1 to 2350:1) ;
- Encoding (automated tracking and storing) of important parameters, e.g., stage, optics, illumination, and camera settings, for rapid recall at any time ; and
- High performance digital camera with fast live image and 10 megapixel (MP) resolution [1, 4].
In this report it is explained how the first 4 points above contribute to a fast, reliable workflow for microelectronics. The other features of the Leica DVM6 have already been discussed in a previous report .
Setup and Start Inspection
The Leica DVM6 digital microscope is simple to set up and operate. Plug in its power cable, connect a USB cable to a computer running the Leica Application Suite X (LAS X) software, put in an objective lens, and the Leica DVM6 is ready for inspection.
Below is a photo of the Leica DVM6 digital microscope with a PCB (printed circuit board) placed onto its stage.
Viewing PCB Components from Different Perspectives: Microscope Head Tilting and Stage Rotation
A fast and reliable inspection workflow for PCBs often requires that their complex, 3D components, such as amplifiers, voltage regulators, transistors, diodes, capacitors, assemblies, etc., can be viewed from various perspectives. The Leica DVM6 digital microscope has both a tilting head (–60° to +60°) and rotating sample stage (–180° and +180°) .
Examples of PCB images recorded at different viewing perspectives are shown below. The different viewing perspectives can be important when inspecting components; for example, the soldered leads of the voltage regulator circled in red. Changing the viewing angle allows different parts of the leads and components to be seen which can be “hidden” with a fixed, overhead view (tilting of 0°).
Mosaic Overview of Sample
Often when inspecting PCBs, it is quite convenient to have a low-scale overview and then zoom in on a point of interest at higher magnification.