Country for PR: Japan
Contributor: Kyodo News JBN
Wednesday, November 10 2021 - 17:00
AsiaNet
OMRON Launches World's Fastest CT X-ray Inspection with New VT-X750-V3 AXI System
KYOTO, Japan, Nov. 10, 2021 /Kyodo JBN-AsiaNet/ --

- 100% Inspection Achieved of Rapidly Expanding Electronic Assemblies for EVs 
and 5G Products -

OMRON Corporation based in Kyoto, Japan, has announced the development of a new 
VT-X750-V3 system, the world's fastest (*1) CT-type X-ray inspection device 
(*2) to date, and said it will be released globally on November 20. The 
VT-X750-V3 delivers advanced, true 3D inspection of electronic substrates to 
meet the growing needs of fifth-generation mobile communication systems (5G), 
electric vehicles (EVs), and autonomous driving application products. OMRON 
contributes to the security and safety of society through high-speed, PCB 
design constraint-free, 100% X-ray inspection of electronic substrate 
assemblies to maintain and improve productivity while simultaneously ensuring 
the quality of customer products.

Realizing even faster, high-quality, CT-type X-ray automated inspection with 
VT-X750-V3: https://kyodonewsprwire.jp/img/202111052966-O6-OLtVm6x2

In recent years, demand for electronic substrates to support 5G, EVs, and 
autonomous driving applications has grown rapidly, which in turn continues to 
raise the quality requirements of these substrates. These advanced applications 
may involve risks to human life and the highest-quality inspection is necessary 
to ensure the reliability, performance and safety of the final products. 
Design, manufacturing and inspection challenges are growing such as progressing 
PCBA densification through IC chipping, which relates to parts mounting on both 
sides of the board and further consolidation of parts to increase the number of 
components mounted on the board. To inspect these components with true accuracy 
and stability, traditional 2D X-ray imaging techniques are insufficient or 
incapable and 3D inspection has become essential. However, 3D X-ray imaging, 
image processing and inspection take time. It is very difficult to achieve both 
operating effectiveness and high-quality inspection. Historically, in order to 
keep pace with antiquated 2D X-ray cycle-times or meet production demands, 3D 
CT inspection may have only been used on a portion of the assembly, for the 
most critical components or in an offline inspection cell away from the 
production line to meet 100% inspection requirements.

Comparing X-ray technology imaging of solder defects: traditional 2D-2.5D 
(left) and true 3D CT (right): 
https://kyodonewsprwire.jp/prwfile/release/M102197/202111052966/_prw_PI1fl_RV565X3o.png


The VT-X750-V3 delivers an inspection speed 1.5 times faster than the current 
model, making 100% CT X-ray inspection of even complex substrates more 
achievable than ever. High-speed acquisition of clear 3D images has been 
actualized with unique, continuous imaging technology (*3) and seamless, smooth 
motion through OMRON's own machine control equipment and a camera with two 
times (*4) the sensitivity of conventional technology. This allows for 
high-performance inspection within a shorter cycle time. In addition, the CT 
imaging condition settings used for inspection are more automated through 
ongoing OMRON AI development in order to further reduce program-tuning time. 
OMRON's expertise, experience and continuous innovation have been helping to 
improve customer productivity for more than 30 years.

Today's more complex substrates/components require 3D CT AXI: 
https://kyodonewsprwire.jp/img/202111052966-O2-1k04Q1rT

OMRON's strategic concept of "innovative-Automation" consists of the three i's: 
"integrated (the evolution of control)," "intelligent (intelligence developed 
through IoT and AI)," and "interactive (new harmonization between humans and 
machines)." OMRON is driving innovations on the production floor. By combining 
the integration of the widest range of control devices and the use of AI fully 
versed in solder inspection, the VT-X750-V3 is the latest offering from OMRON 
that embodies the "innovative-Automation" concept. OMRON offers total solutions 
designed to achieve zero-defect production lines.

Key features

1. Achieving inspection speeds 1.5 times faster than the current OMRON system 
through unique, continuous imaging technology:
OMRON continues to maintain high-quality imaging of 3D CT data (3D images) 
alongside optimized hardware control to realize inspection times 1.5 faster 
than the current model. This enables high-precision, 100% inspection without 
any compromise to productivity.
To develop the advanced optimization of hardware control, OMRON concentrated 
in-house knowledge and expertise alongside OMRON motion control devices to 
actualize high-speed, seamless, continuous imaging and more accurate 
positioning with real-time feedback control. Through these unique and 
innovative technologies OMRON can deliver clear 3D CT images. Additionally, the 
high-speed, high-sensitivity camera combined with OMRON's latest 3D algorithms 
reduce X-ray noise to even further improve overall automated inspection 
capability and stability.

Comparison of Omron VT-X series 3D CT AXI inspection speeds over time:
https://kyodonewsprwire.jp/prwfile/release/M102197/202111052966/_prw_PI5fl_fxqN8669.png


2. Power device inspection
OMRON has introduced new inspection logic to optimize inspection for components 
such as IGBT and MOSFET (*5) power devices. OMRON VT-X series 3D CT X-ray 
continues to be heavily utilized for solder filling inspection of through-hole 
connectors, inspection of press-fit connectors and inspection of SiP/PoP 
packages (*6), which have seen a continual increase in utilization over recent 
years. Inspection of power devices in particular is becoming more critical as 
power semiconductors are changing from Si to SIC or GaN (*7) and heat release 
issues are becoming more important. When facing growing EV challenges and 
demands for increasing mileage per charge, higher power and reductions in size 
and weight, heat release issues are unavoidable. OMRON has developed advanced 
and proprietary inspection algorithms to target the critical void inspection of 
solder joints to help address heat release issues.

Inspection of GaN power device (left) and SiP (right) using OMRON 3D CT X-ray 
imaging: 
https://kyodonewsprwire.jp/prwfile/release/M102197/202111052966/_prw_PI3fl_D509F0GE.png


3. Improving automation and reducing skill level requirements with OMRON AI:
X-ray inspection frequently requires a need for the optimization of imaging 
conditions due to various test objects, component types or component locations 
on both sides of the PCB. Multiple parameters can be adjusted when setting 
these conditions. The conventional method was frequent, manual setting through 
trial and error until the optimal imaging condition is identified. However, it 
is now possible to automatically make these determinations with AI to 
significantly shorten the tuning process. 3D CT data, captured with the 
VT-X750-V3, need advanced and powerful technology to process 3D images. By 
registering the 3D image processing settings beforehand, the VT-X750-V3 is able 
to achieve true, automated inspection at the production site. However, the 
tuning of these settings may require specialized skills. New AI tools are 
helping to automate some of these processes; and thus reducing both the setting 
time and necessary skill level.

4. Reducing the risk of X-ray exposure:
In addition to preventing X-ray exposure to operators, reducing risk of failure 
due to over-exposure of semiconductor components on the products being 
inspected is a real concern. OMRON has developed a feature that can accurately 
simulate the exposure level per component, in any location and on both sides of 
the board. This new function reduces the risk of component failure due to 
excessive X-ray exposure by verifying dosage amounts.

X-ray exposure simulation per component: 
https://kyodonewsprwire.jp/prwfile/release/M102197/202111052966/_prw_PI4lg_OXSXT7PE.png


Notes:
(*1) The world's fastest: As a full 3D CT-type X-ray automated inspection 
system, it is the world's fastest in the substrate inspection industry, 
according to OMRON's research as of October 2021.

(*2) CT (computed tomography)-type X-ray automatic inspection device: 
Inspection device equipped with technology to capture computed processing data 
of 3 dimensional images when capturing the image of continuous cross-sections 
inside of structures that are invisible to the human eye using X-rays. The same 
technology as CT scanning systems utilized by medical institutions.

(*3) Continuous imaging technology: Technology for imaging stereoscopic images 
without stopping.

(*4) Twice as much as before when comparing the detection range of the 
conventional model and, in the same imaging condition, the degree to which an 
image sensor (imaging element) detects X-ray as light.

(*5) IGBT and MOSFET: Power devices are components that are necessary to drive 
motors and convert DC electricity from a battery or other sources into the AC 
needed by the drive motors. In recent years, it has become one of the more 
important components for electrification of automobiles and railways. In 
household electrical appliances, electricity from outlets can be used as-is to 
drive motors; but in automobile or PHEV applications, batteries are used as the 
driving source, and it is necessary to convert from DC to AC. IGBT or MOSFET is 
a typical power device utilized and adopted differently depending on the 
application.

(*6) SiP/PoP package: SiP = System in Package, PoP = Package on Package. Both 
are the names of components used on sophisticated PCB designs. The Existing 
IC/LSI component's inner structure is a single layer; but the SiP or PoP 
component inner structure is multi-layered and consists of more complicated 
structures. The more complex the structure, the more critical 3D X-ray 
inspection capabilities and high-quality imaging becomes. SiP devices are 
frequently used for 5G communication components such as connected cars and 
smartphone devices while PoP devices are frequently used for processor 
applications like primary CPUs.

(*7) SiC or GaN: Conventional semiconductor devices are mainly made of Si 
(silicone) including power devices; but many such power devices may experience 
heat issues as electrical voltage and current increases. SiC (Silicone carbide) 
or GaN (Gallium Nitride) devices have stronger heat resistance and are expected 
to dominate next-generation power semiconductor device designs. 

Upcoming exhibition
OMRON will introduce the new VT-X750-V3 3D CT AXI system at exhibitions in 
Germany, North America and Japan. Visit the OMRON booth to receive a 
demonstration of the advanced and automated, 3D CT X-ray inspection of 
electronic assemblies and components.

- Germany
Exhibition: Productronica 2021
Dates: November 16 (Tue.) - 19 (Fri.), 2021
Venue: Messe Munchen, Germany
Booth number: A2 Hall 433

- North America
Exhibition: IPC APEX EXPO 2022
Dates: January 25 (Tue.) - 27 (Thu.), 2022
Venue: San Diego, CA
Booth number: 2732

- Japan
Exhibition: INTERNEPCON JAPAN 2022
Dates: January 19 (Wed.) - 21 (Fri.), 2022
Venue: Tokyo Big Sight, Japan
Booth number: East 3 Hall 

About innovative-Automation: 
https://kyodonewsprwire.jp/attach/202111052966-O2-3CS9i7qe.pdf

About OMRON Corporation: 
https://kyodonewsprwire.jp/attach/202111052966-O3-fE8gl0m9.pdf


Source: OMRON Corporation