Optilia Flexia bga User manual

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Instructions Manual

Flexia BGA Inspection Systems

This manual describes how to use Flexia BGA Inspection System

Optilia Instruments AB

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Contents

1. Safety and maintenance Instructions 3

2. About Flexia BGA 4

3. Mounting Flexia BGA 5

4. How to attach Background Illumination 6

5. How to calibrate magnifications of BGA lens in OptiPix 7

6. How to Inspect BGA solders 8

7. Zoom, Focus and Image tilt adjustments 9

8. Changing Optical Head 9

9. Notes 10

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1. Safety and maintenance Instructions

•Do not scratch or hit front edge of the side viewing prisms onto hard

objects! This precaution is important especially when you operate

Flexia BGA mobile ion free hand.

•Only use DC Power Sources provided or approved by Optilia.

•Only use accessories provided or approved by Optilia.

•Keep the equipment clean. Use Lens Cleaning Tissue and Pure

Ethanol or Isopropyl alcohol for cleaning optical surfaces of the device.

•Never use Acetone or other similar solvents for cleaning.

•Never knock or drop the video microscope.

•Keep video microscope away from direct sun-light, heat and extreme

humidity.

•Store the equipment inside case when not used.

•Protect the BGA lens, Objective lens and Zoom lens by the supplied

protection Rubber Caps or store them inside their boxes when the

equipment is not used.

This equipment is a precision optical device and

shall be handled with great care!

Be careful not to scratch or hit front edge of the side

viewing micro prisms onto hard objects!

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(PAL/NTSC

(PC USB2.0 port

directly if Flexia Digital)

2. About “Flexia BGA”

Flexia BGA is a mobile Video Microscope designed for visual inspection,

digital image recording and software measurements of solder joints of

BGA, mBGA, CSP, Flip-Chip packages. Flexia BGA can also be used for

visual control of pads, solders, components etc on PCBs in the production

plants as well as in the laboratories and for R&D.

Flexia BGA analogue is directly plugged to a video monitor or TV. Flexia

BGA digital is plugged to PC or laptop via USB2.0. In addition, Flexia

analogue can also be connected to a Laptop or PC via Optilia’s High

speed USB2.0 or FireWire Frame Grabbers.

For installation of Flexia digital or Frame Grabber drivers to your computer

please refer to instructions manual of the specific devise.

PC/Lap-top (direct USB2.0 port) TV/External Display (PAL/NTSC) PC/Lap-top( via FG)

(USB2.0 or FireWire

Frame Grabber if

Flexia analogue)

(USB2

Image capture Switch

Optical Head

Zoom & Focusing ring

Threaded hole for

Stand (UNC ¼ -20)

12/5 VDC output

(for BrushLight)

On/Off switch and

indication LED

Illumination Control

Zoom lock

Image tilt

adjustment

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3. Mounting Flexia BGA

Remove the lens-protecting caps and attach the BGA lens onto the Flexia

as illustrated.

Assemble Brush Light-and Focusing Stands as illustrated. Mount Flexia

BGA to the stand as illustrated below. BGA lens must be aligned to the

stand base at right angles precisely. Connect the dissipative mat to GND

for ESD-protection. Connect Flexia to Power and monitor (if analogue

sensor) or to USB2.0 port of your PC (if digital sensor). Install Flexia

Digital drivers first,before connecting the device to PC.

2.

Gently push the BGA lens

inwards to click. (Snap position).

1.

Remove the protecting caps

from Flexia and BGA lens first.

3.

Connect to Earth for

secure ESD-protection

2.

Lock Brush Light

into its holder

1. Assemble stands

4.

Mount

Flexia

and connect

to PC

or Power Supply

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Loosen this screw and

pull down optical head

to contact with PCB

4. How to attach Background Illumination

(Optional, only if you have purchased the Background illumination)

Insert BGA lens carefully into the ring of the Illumination device. Align

front side of the illumination to the white mark on front side of the BGA

lens and fix it by tightening the screw.

Plug the DC connector into AUX output of Flexia Cable for power.

Loosen the illumination position screw to move illuminator

forward/backward. Pull down optical head gently until contact with the

PCB surface. Light intensity is controlled by dimmer knob.

Insert BGA lens into the ring

Position set screw

Loosen screw to move

illuminator forward

Dimmer knob

Connect to DC output of Flexia

Cable for power. Align Illumination ring to the white mark

on the BGA lens

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5.How to calibrate magnifications of BGA lens in OptiPix

(Optional, only if you have purchased “OptiPix Full” software)

Zoom ring of BGA lens is marked by Greek numbers I, II, III and IV. These

positions indicate different optical magnification of the lens and can be

calibrated in OptiPix software to perform dimensional measurements.

a. Define 4 magnifications in OptiPix. (refer to instructions manual of

OptiPix for how to define magnifications).

b. Put the provided Calibration Micrometer Scale on top of the BGA

component (top of the die). Fix position of the Zoom ring to the first

magnification and move the calibration scale forward/backward and/or

sideways until you achieve a sharp picture of the printed scales on the

glass substrate. If available, use of XY-table is preferred.

c. Calibrate this magnification and do same procedure for other

magnifications.

Note: Accuracy of the calibration (and dimensional measurements) is

higher at high optical magnifications. Performing dimensional

measurements is not recommended at low optical magnifications due to

large depth of focus and image distortion of BGA lenses at low

magnification.

Magnification

position fix screw

Calibration Scale

Front side of the

Calibration scale

Magnification

position marks

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6. How to inspect BGA solders

Turn on Flexia. Put the PCB on the stand base. Adjust height of the Rack

& Pinion roughly. Use the Rack & Pinion unit to slide down Flexia to a few

millimeters above the BGA package. “Fine adjust” position of BGA

package against optical head of Flexia BGA and move down Flexia BGA

slightly and carefully to contact with the PCB surface. Do not press BGA

lens to the PCB.

Tilt the Brush-Light approximately 45º and position tip of the optical fibers

to edge of the BGA component by adjusting the Brush Light Stand. Turn

on the Brush Light to insert background illumination underneath BGA

component. Adjust intensity of the background Illumination by turning the

Brush-Light knob.

Note: Brush-Light is powered by battery or by Flexia. Switch battery tube with

DC-adapter (optional) and connect it to AUX output of Flexia cable to power the

illumination via Flexia Cable.Power supply must be connected to Flexia Cable!

1.

Move down

Flexia BGA gently

to get in touch with

the PCB surface

next to the BGA

package.

2.

Tilt the Brush

Light appr. 45 deg.

and position tip of

the optical fibers to

edge of the BGA

component.

4.

Turn on the light and

adjust illumination intensity.

3.

Loosen

locking

screw

s

and move the

brush light toward the BGA package.

Solder ball without

background light

Solder ball with

background light

DC-adapter

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7.Zoom, Focus and image tilt adjustment

Image magnification as well as object distance of the BGA lens can be

adjusted by turning “focus ring” of the lens. Horizontal plane of the image

(Image tilt) can also be adjusted by rotating optical head of the BGA lens

about its axis a few degrees.

Turn the “zoom ring” in order to focus deeper underneath the BGA

component.

8.Changing Optical Head of the BGA lens

Optical Head of BGA lens can be replaced in case of damage or aging.

Note: Micro prisms on the tip of the Optical head are protected by

mechanical housing. These can still be damaged if pressed against hard

edges.

1.

Move down

Flexia to contact

with PCB surface. BGA lens must

be at 90oto the PCB.

2.

Rotate “Zoom Ring” to alter

object distance and focus!

3.

Rotate optical head to adjust

horizontal plane of picture if

necessary.

1.

Unscrew the ring and pull out the

Optical Head

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9.Notes

…………………………………………………………………………………………………

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AB,s video microscope Flexia BGA. Optilia Instruments AB is not responsible for any use of this

information for other purposes. Optilia Instruments AB shall not be liable to the purchaser of this product

or third parties for damages, losses, costs or expenses incurred by the purchaser or third parties as

result of: accident, misuses, or abuse of this product or unauthorized modifications, repairs or

alternations to this product, or failure to strictly comply with Optilia Instruments AB´s operating and

maintenance instructions. Optilia Instruments AB shall not be liable for any damages or problems

arising from the use of any options or any consumable products other than those designated as original

Optilia products or Optilia approved products by Optilia Instruments AB. Optilia Instruments AB shall

not be held liable for any damages resulting from electromagnetic interference that occurs from the use

of any interface cables or devises other than those provided by or designated as Optilia-approved

Products by Optilia Instruments AB.

Djupdalsvägen 22

S-192 51, Sollentuna

Sweden

Phone: +46 (0)8 35 33 60

Fax: +46 (0)8 35 33 63

E-mail: [email protected]

Web: www.optilia.eu

RevG, April 11

Optilia Flexia BGA User manual

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