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WHAT IS
ELECTRONICS &
SEMICONDUCTORS INSPECTION?

 

Wafer Alignment, Dicing, and Assembly

 

Pick-and-Place (P&P) and Chip Shooting

 

Automated Optical Inspection (AOI)

 

Flat Panel Inspection

Accurate and reliable machine vision components are an absolute requirement for all steps in the inspection and assembly of electronics and semiconductors, including wafer probing and dicing, wire bonding and chip flipping, and device assembly.

Microlithography is used to manufacture semiconductor wafers. Once aligned, the wafers are diced into chips and assembled, along with additional components, into electronics devices like integrated circuits. Chips are deposited onto circuit boards using pick-and-place (P&P) robots or chip shooters. Chip placement on the board is monitored by automated optical inspection (AOI) systems. Individual chips and components are then soldered together with a ball grid array or other advanced techniques in a factory automation environment.

Why Electronics & Semiconductors Inspection?

As Moore’s Law has shown over the last few decades, the number of transistors on integrated circuits has been doubling every two years. Additional transistors require additional computing and processing power. Computer, smartphone, and other electronics manufacturers then make use of this additional processing power by offering faster speeds, better graphics, and overall improvements in the next generations of products. While it is assumed that some electronics markets will eventually reach saturation, thousands of millions of electronic consumer goods like smartphones are sold each year and will likely continue to sell for the foreseeable future.

Smartphone Graph

Optics for Electronics & Semiconductors Inspection

Machine vision lenses, including telecentric lenses, low distortion fixed focal length lenses, line scan lenses, and microscope objectives, are often used in semiconductor production with inline illumination to observe and align semiconductor wafers during microlithography.

These machine vision lenses, along with illumination sources like ring or spot lights, are used in automated optical inspection (AOI) systems that perform visual inspection of electronic chips, flat panel displays, and many more electronic components. AOI systems monitor attributes like chip placement and orientation with respect to the entire board and the depth or height of layered devices, such as CMOS sensors. AOI systems also ensure that connecting leads are slotted into the correct ports.

Edmund Optics (EO) is a world class optics and photonics manufacturer with over 78 years of experience in optics, design, testing, and manufacturing. Additionally, EO offers a broad selection of versatile and off-the-shelf products, which are continuously updated to support current, relevant challenges for electronics & semiconductors inspection. Learn more about Edmund Optics and our World-Class Imaging Optics and Manufacturing Capabilities.

Edmund Optics’ Solutions for Electronics & Semiconductors Inspection

Edmund Optics’ Solutions for Electronics & Semiconductors Inspection

Technical Information and Tools

Videos

Informative corporate or instructional videos ranging from simple tips to application-based demonstrations of product advantages.

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Imaging Performance of Telecentric Lenses

 

Application Notes

Technical information and application examples including theoretical explanations, equations, graphical illustrations, and much more.

11 Best Practices for
Better Imaging
Read  

6 Fundamental Parameters of an Imaging System
Read  

From Lens to Sensor: Limitations on Collecting Information
Read  

Distortion and the Telecentricity Specification
Read  

Distortion


Read  

Diffraction Limit


Read  

Ruggedization of
Imaging Lenses

Read  

Imaging Electronics 101: Understanding Camera Sensors for Machine Vision Applications
Read  

Imaging Electronics 101: Basics of Digital Camera Settings for Improved Imaging Results
Read  

Technical Articles

Links to technical articles appearing in industry publications authored by Edmund Optics or featuring contributions from EO's engineering team and key management.

"Vision & Sensors Lens Selection Guide, Part 1" by Nick Sischka - Quality Vision & Sensors

Go  

"Lens Selection Guide, Part 2" by Nick Sischka - Quality Vision & Sensors

Go  

"Vision Systems for 3D Measurement Require Care to Ensure Alignment" by Jessica Gehlhar - Industrial Photonics
Go  

"The Importance Of Ruggedization For Imaging Lenses" by Daniel Adams - Assemblaggio & Meccatronica
Go  

"How To Maximise The Performance Of An Imaging System" by Daniel Adams - Assemblaggio & Meccatronica
Go  

Working on Optics for an
Electronics or Semiconductors Inspection System?

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References

1 O'Dea, S. “Cell Phone Sales Worldwide 2007-2020.” Statista, 28 Feb. 2020, www.statista.com/statistics/263437/global-smartphone-sales-to-end-users-since-2007/.

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