Vision Examples in the Electronic Device Industry

Key inspection points

Because it can accurately extract minor color variations, using Multi-Spectrum Mode allows for stable and reliable inspections, even for products with a variety of color patterns.

Recognition result in multi-spectrum mode

Key inspection points

Detects the presence and orientation of IC chips allowing the carrier tape to be advanced to skip any pocket that is missing a part or has product oriented incorrectly.

Recognition result with machine vision

Key inspection points

Ensures coating quality by detecting subtle color changes or pealing, even on high-speed production lines.

Recognition result with machine vision

Key inspection points

Conduct various inspections of IC chips on a tray with a single machine vision. Line scan cameras allow simultaneous inspection of targets over large areas.

Recognition result with a line scan camera

Key inspection points

If the adhesive and the background colors are similar, differentiating the colors under conventional lighting conditions is difficult, and there are cases in which the inspection loses stability and reliability. By utilizing Multi-Spectrum Mode, slight color variations can be extracted, allowing the accurate inspection of coating conditions.

Recognition result in multi-spectrum mode

Key inspection points

When performing an external inspection for dirt, if the color of minor defects are similar to the product's own color, it can cause the inspection to become unreliable. By utilizing Multi-Spectrum Mode, slight color variations can be extracted, allowing for accurate inspection of only the defects.

Recognition result in multi-spectrum mode

Key inspection points

When using conventional lighting conditions, there are cases in which the extraction of unsoldered portions becomes unreliable. By using Multi-Spectrum Mode, it is possible to accurately extract only the color of the land portion, resulting in stable and reliable inspections.

Recognition result in multi-spectrum mode

Key inspection points

For appearance inspection of windings, use of conventional lighting conditions can result in unreliable inspections due to the reflection of the lighting and the color variations caused by the gloss of the windings. By using Multi-Spectrum Mode, it is possible to extract only the faulty locations the are targeted for inspection, resulting in stable and reliable inspections.

Recognition result in multi-spectrum mode

Key inspection points

Under conventional lighting conditions, differentiating the color and gloss of the terminal from fouling or dirt can be difficult. If Multi-Spectrum mode is used, even minor defects or dirt can be reliably extracted for stable and reliable inspections.

Recognition result in multi-spectrum mode

Key inspection points

If there is insufficient difference between the inspection target location and the background, inspection of flaws in the profile may become difficult. With LumiTrax™ mode, partial lighting from 4 directions enables extraction of the profile, regardless of color differences, resulting in stable and reliable inspections.

Recognition result in LumiTrax™ mode

Key inspection points

Due to the gloss and color variation of windings, extraction of colors under conventional lighting conditions may not be reliable. By using Multi-Spectrum mode, color extraction capability is improved through the use of 8 wavelength's worth of information, resulting in accurate inspection of the condition of the windings.

Recognition result in multi-spectrum mode

Key inspection points

The printed text and material on the surface of very small electronic components made it difficult to detect linear scratches. The system cancels out the noise of the material and the printed 2D information. Linear scratches can be reliably detected even on very small components.

Recognition result with a line scan camera

Key inspection points

Makes it possible to perform a detailed quality inspection of crystal oscillators by ignoring the influence of texture and individual differences between target.

Recognition result with machine vision

Key inspection points

Detects foreign particles, linear stains, blisters, flaws, etc. on the surface of LED’s. The high-speed processing can maximize the machine yield rate.

Recognition result with machine vision

Key inspection points

Appearance inspection of battery surfaces to find flaws or dents was difficult because it was hard to differentiate between printing and defects. The LumiTrax function allows detection of just flaws and dents by canceling 2D information such as printing.

Recognition result with machine vision and LumiTrax

Key inspection points

Accurate differentiation of flaws or bulging on IC molds was difficult due to the influence of the texture or glare on the surface. Using the LumiTrax function makes this detection possible. It can detect flaws or bulging only by canceling marked characters.

Recognition result with machine vision and LumiTrax

Key inspection points

A line scan camera enables detection of minute pinholes and wrinkles in a moving sheet of capacitor foil.

Recognition result with a line scan camera

Key inspection points

Detect the light reflected from the tip of connector pins to find minute bends in the pins. A special package of tools for connector inspection eliminates the need for teaching and simplifies inspection settings.

Recognition result with machine vision

Key inspection points

Using machine vision, inspect the dimensions and angles of multiple sections of a lithium ion battery. The use of a 21 megapixel machine vision allows high-resolution inspection.

Recognition result with a 21 megapixel machine vision

Key inspection points

Using a high-pixel, 16x speed machine vision achieves high-accuracy positioning.

Alignment with machine vision

Key inspection points

KEYENCE's image processing systems support robots from many manufacturers and allow direct connection easily. This can save significant man-hours for startup.

Misalignment correction using machine vision

Detection image

Key inspection points

Read the characters/2D codes laser-marked on the surface of IC chips. A single machine vision can recognize both characters, such as part numbers, and 2D codes simultaneously.

Recognition result with machine vision

Key inspection points

Using a high-pixel machine vision allows an entire PCB to be captured within the field of view. This enables simultaneous inspections to measure connector pitches and other items, as well as to recognize/judge character information and 2D codes.

Recognition result with machine vision

Key inspection points

KEYENCE’s Pattern Projection Vision System uses 3D data to create contrast based solely on shape, rather than surface finish or color. Confirm presence/absence, measure width and volume, and detect breaks on sealant and formed-in-place gaskets. Large format lighting available for inspection over a wide field of view.

Recognition result with pattern projection lighting

Key inspection points

Along with conventional 2D inspections, such as pin pitch, 3D images can be used to inspect for pin insertion defects by using height data. Fallen objects are also easily detected using the 3D image through simple comparison of a known good part, even with low contrast or background patterns.
* The Inline 3D Appearance and Dimension Inspection Customizable Vision System (XT) is recommended for measuring pin height.

Recognition result with pattern projection lighting

Key inspection points

Without height data to identify features, it is difficult to inspect an entire tray where there is little contrast on the parts features and between the parts and the background. If height information from a 3D image is also used, seemingly uniform colors are no longer a barrier to fully inspect the tray. In addition to count, it is also possible to detect different varieties, difference between front and back, and parts that are oriented incorrectly. LumiTrax™ images*1 can be obtained at the same time, which eliminates the effects of ambient light and aids in emphasizing the raised features across the tray.
*1 LumiTrax™ lighting creates two images: one to reduce glare, and one to emphasize height features while ignoring color.

Recognition result with pattern projection lighting

Key inspection points

Recognition of deformation such as warpage was difficult with machine vision. The combination of a laser displacement sensor and image processing system achieves inspection of warpage of PCBs and presence of mounted components based on height information.

Recognition through the use of a laser displacement sensor and 3D measurement

Key inspection points

This allows not only measurement of bending or the pitch of connector pins, but also measurement in the height direction through the use of 3D vision inspection. By using the housing as a reference plane, the system achieves stable inspection regardless of the position or wobbling of targets.

Recognition result with a 3D camera