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X-Ray BGA Inspection:

Millison has chosen the Glenbrook RTX-113 X-Ray system to provide our BGA Inspection.

From the Glenbrook web site:

The RTX-113 is designed for heavy production environments where X-ray is used to inspect PCBs and assembled PCBs containing advanced components such as BGAs, uBGAs and Flip Chips.The system is very versatile and features Glenbrook's patented, award-winning X-ray camera technology that generates high-resolution, high-sensitivity images, revealing defects as small as 0.001 inch with a full one inch diameter field of view. The RTX-113 provides affordable real-time X-ray imaging, reliable operation and easy servicing.

Applications:

bulletMulti-layer PCBs
bulletSmall Hole Drilling
bulletBGA Inspection
bulletBackplane Boards

Specifications:

bullet42"H x 42"W x 24"D
bulletOperating Voltage: 120v, 60hz or 220v, 50hz
bulletContrast Resolution: Can resolve .001 gold wire
bulletSpatial Resolution: 20lp/mm (with MicroTechTM option, up to 100lp/mm)
bulletAnode Voltage: 35-52kV
bulletAnode Current: 20-50 microamps (internal adjustment)
bulletFocal Spot Size: 0.2mm
bulletFocal Spot to Image Plane Distance: 4-6 inches
bulletX-ray Activation Mode: foot pedal or timer switch

Options:

bulletImage Processing/Advanced transfer capabilities
bulletVideo Printer
bulletXRTV Zoom Camera (4X-50X magnification)
bulletMicro-TechTM 10-micron X-ray Source (225X)
bulletDual-Vu™ package for simultaneous x-ray and visual inspection.
bulletBGA and Void Measurement software
bulletManual/Motorized X-Y positioner
bulletVariable Angle Viewing allows 45 degree viewing

Automated Optical Inspection:

Millison uses two Marantz 22X-fv Automated Optical Inspection systems as a part our test and inspection strategy.

Some of the functions these units provide us with are:
bulletSolder Paste Inspection
bulletWrong Component (Value).
bulletComponent Polarity.
bulletComponent Location.
bulletSolder Fillet Inspection.

Parts inspection is a function to compare the image of a PCB captured by a CCD camera with the picture of a good PCB memorized in advance and to judge whether it passes the inspection or not with the computer. Such judgment is performed by simple specification of a portion to be inspected and inspection of the existence of parts, positional divergence of parts, wrong parts and the like at high speed. As color factors are also inspected for judgment, objects which cannot be discriminated between defective and good by brightness only can be judged reliably.

Missing Components
Missing Components Offset
Wrong parts
M22Xfv Series is equipped with a red LED for solder fillet inspection. The red LED, which lights during only fillet inspection, emphasizes an inclined fillet and recognized it clearly. A captured picture is processed by high-speed rendering. After the process, only fillet parts are extracted from the captured picture, and judged whether the pattern is defective or good. Reputable simple operations, which bring have been taken over for programming operations and judgment.

LED
extinguished
LED
illuminated
Red
extraction

 

Solder print inspection is a function to inspect the status of solder printed surface by examining its area, place and form. Data processing is carried out naturally because of the use of natural light as the same as the previous parts inspection. Moreover, no special hardware is required.
Data of solder printed surface to be inspected can be made by GERBER data, automatic sampling or manual designation.

Offset Blur
being faint and patchy

 

Digital zoom Camera Special setting
As a picture is taken from *FireWire port on Model 22Xfv.Model 22X does not need troublesome adjustments. For example, by digital zoom in mode, 10 magnifications for IC letters and 20 magnifications for minute chips are available while usual convenient operations can be performed. Moreover, it is no problem if inspection frames of various magnifications exist in one inspection picture.

Zoom photo
bulletFireWire
This is the designation by Apple Computer for high-speed serial bus,which is IEEE1394-1995 formally. It is the characteristic that data can be transferred at 400Mbits/sec, as well as hot plug. 63 equipments can be connected as daisy chain at maximum.
Basically, the camera calibration should be fixed. However, in some places to be inspected, black components on dark surface or bright color components on whitish surface actually exist. On the new models, frequent control of the digital camera enables the camera setting that makes it easy to see each place. Therefore, components can be recognized more clearly, and can be inspected more precisely.

Camera Special setting photo

 

Report
The inspection result shows NG portions with red circles on the picture of the whole image of the inspected PCB itself. Moreover, the descriptions of such portions can be displayed and the CCD camera can move there directly. As the picture of the whole image of the inspected PCB can be displayed even during the inspection of the following PCB, the result can be confirmed while Model 22X is operating and you can use time economically.
Moreover, conveyance of inspection results and Remote mode are available by the network function on concentrated control software, Rc22X. Remote mode enables actual object confirmation mode on the server. In Remote mode, it is possible to confirm check results far away from the inspector using one server for several inspectors.

report photo

 

Automatioc Calobration
The calibration of the digital camera can be adjusted automatically because brightness and white balance can be adjusted by commands from the computer. Therefore, correct adjustment can be performed at the beginning of the inspection and at intervals of specified time.

Calibration photo