Our Revolutionary Technology to Improve PCB and LSI Yields Oscillated RecallTechnologynology
In recent years, the rapid spread of mobile information devices, such assmart phones and tablet devices, have caused a significant decline in yieldof PCB or LSI-Package etched micro wirings. To solve this issue,
we provide the optimization tool in cooperation with other circuit board
detection device manufacturers, microscope manufacturers, and national
research institutes. Our tool enables mask data generation applicable todesigned data, finished shape check, automatic modification of mask data based on the latest state ofconcentration and surface irregularities of etchant and automatic measurement of results.

1. Our Technology Overview: WELCOM
1) Our company developed innovative bi-directional simulator that can calculate local etching force from
distribution of resist patterns and perform automatic correction and etching analysis.
2) We have developed the world’s fastest simulator that can extract etching properties with a simple test pattern
and automatically generate optimum mask data applicable to the process. (generating mask data for 14mm x14mm circuit board in 10 seconds)
3) Our simulator achieves precise accuracy and outstanding results. We maintain the development of completely
unique software that our competitors cannot follow.
Our Result

Other company’s mask data result

Our Result using WELCOM

Other company’s Mask data result using WELCOM

Comparison of Calculation
Results
Mask Data Result using WELCOM

Comparison of Mask Data Results
Mask Data Result using Competitor’s Software

Comparison of Mask Data ResultsMask Data Result using WELCOMMask Data Result using Competitor’s Software

Comparison of Mask Data Results

2. Solution for Improving Yield with Circuit Board Detecting Devices
1) We discovered the new production flow that combines the utilities of AOI (Automatic Optical Inspectionmachine), DI (Direct Imaging machine), and etching simulator.
2) Our technology is designed to enable automatic generation of mask data applicable to the latest state ofconcentration and surface irregularities of etchant.
3) We succeeded in establishing the mass production technology of L / S = 30 um / 30 um (error ± 5 um) at amajor PCB manufacturer.

3. Automatic Measurement System
1) The use of our software provides quality inspection and error detection system for circuit board using microscope.
2) This system allows to ensure the elimination of unnecessary work of inspectors and human errors in measurement.
3) Using our software, you can have a measurement of line width, line spacing, circular pad, rectangular pad, pad pitch, andspacing variation between pad and wiring.
4) The default result output format is CSV. It contributes to shortening total review time.

5) After automatic positioning stage is integrated into microscope, you can measure the results with CADNavigation.
Measurement of Spacing
Manufactured Circuit Board

Shape extraction （Raster／Vector）

Measurement of Width
Shape measurement

Inputting multiple circuitboard data by the batch

Output, Error Correction

Measurement ofFinished shapeCSV
Measurement ofDistortion

Pattern measurement
Using microscope

Measurement of Pitch

Shapes of circular and rectangular pads areautomatically recognized.

6) Our image processing technology, which could measure
top and bottom of wire simultaneously, would dramaticallystreamline the circuit board measurement process.

Simultaneous
measurement of
top and bottom

OriginalImage株式会社 Oscillated Recall Technology〒305-0047 茨城県つくば市千現2丁目1番6 つくば研究支援センター内（TEL）029-858-6116／6118（FAX）029-858-6116