Step by Step Process of BGA Reballing

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Step by Step Process of BGA Reballing
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Introduction

• Reballing means changing all the Soldered Balls
  on Chip Ball Grid Array Circuit, there are a lot
  of different reasons why we need to reball a
  Chip.
• Reballing mainly runs on the computer, laptop,
  and game console motherboards, the reason behind
  this problem is the video graphics chip. It may
  be unbelievable, but your device's Video Chip is
  the most unfortunate chip to get the most broken
  soldered joints, and in most cases needs repair.
  
• In fact, as well as video chips, there are a lot
  of BGA circuit chips on the market, which need to
  be reballing when they break or fail.
• Esanyog have solutions for all your BGA rework
  and repair needs. We have a state-of-the-art BGA
  rework system and staff of engineers and
  operators with deep knowledge and experience in
  the complex process of BGA rework.
• We offer a wide range of services including
  removal, replacement and recovery of BGA parts.
  Modification of circuit pattern design at X-ray
  inspection BGA site. Repair of lifted or missing
  BGA pads. Solder mask repair at BGA site

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Ball Grid Array, BGA rework

• It is not easy to rebuild a board containing BGA
  If you suspect that the BGA is defective, it is
  possible to remove the device.
• This is achieved by locally heating the device to
  the underlying solder.
• In the BGA rework process, heating is often
  achieved.
• This includes a jig with an infrared heater, a
  thermocouple for the monitor and a vacuum device
  to lift the package.
• Care must be taken to heat and remove only the
  BGA. Contact information

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BGA Repair

• The removed BGA can be replaced with a new one.
  Occasionally, it may be possible to repair or
  repair a removed BGA.
• This BGA repair may be an attractive proposition
  if the chip is known to be an expensive device
  that will operate once removed.
• This BGA repair can be done using some small
  off-the-shelf solder balls that are manufactured
  and sold for this purpose.
• Sanyog Electronics has extensive experience in
  both repairing and replacing failed BGA
  connections

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Steps for BGA Reballing

• Step 1 Deball the Device
• Apply a water soluble paste flux using a
  syringe and apply a ball of the device with a
  gloved finger. Remove the solder ball using the
  appropriate blade tip or temperature setting
  based on the solder ball alloy. Use a soft-solder
  to ensure that the pad is flat and remove any
  remaining solder. Move the blade up and down
  without sweeping the bottom of the part to
  scratch the mask or lift the pad of the part.
• Step 2 Clean Deball part
• Remove flux residue from the bottom of the
  Devar section using isopropyl alcohol and a non
  electrostatic induction wipe to clean the Deball
  part
• Step 3 Apply water soluble paste flux
• Examine the device to make sure that the
  mask or lift pad is not scratched on the bottom
  of the device. Apply water soluble paste flux to
  the bottom of the part. Spread with a soft brush
  until the uniform thickness is at the bottom of
  the part.

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Step 4 Place the perform ball on top Place the
perform ball on top of a flat heat-resistant
surface, such as a flat ceramic plate. Make sure
that the performs are aligned with the device
pattern. Make sure you have the correct solder
alloy solder ball attached to the device. Step
5 Carefully place the device on top of the
preform Carefully place the device on top of the
BGA recall preform, making sure that the
orientation of the pattern is correct. Step 6
Square up the device to the perform Use square
brackets or other measures to "square" the
preform to a BGA Step 7 Reflux Place the
"sandwich" structure of the preform and equipment
into a Reflux oven or other heat source. Make
sure that the proper temperature setting is
made. Step 8 Wipe out Preform While still warm,
remove the preform from the device. Make sure
that all balls have moved to the device. Please
wipe with water and a soft brush. Re-inspect the
scratches on the mask or lifted pad. Step 9
Check Reballed equipment Examine the reballed
device by expanding it to the criteria you have
in mind.
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Contact Us

•  Shop No 15,Harshal Heights, Opp.Gavde Petrol
  Pump, Pimpri-Chinchwad Link Rd, Pune, Maharashtra
  411033

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Thank You!