Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netWhat is BGA Reballing andWhy it need...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBGA Reballing• Handling of Parts• Da...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netWhy Devices Get ReballedAvailabilit...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHandling of Parts Work areas must b...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Components should be handled by th...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Devices should be handled at prope...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHandling of Parts-MSD Awareness of ...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netData SheetsDrive the design of the f...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection Exce...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-XRAY Inspection
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHigh volume-several thousand piecesR...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netFixtures and/or stainless stencilsRe...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netNon contact deballingPhoto Courtesy ...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netPhoto Courtesy of VJ ElectronixRebal...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netPick and Place solder ball pre-formP...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReflow spheres onto substratePhoto C...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReball ProcessLow Volume 1-several h...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReball Process“Peel Away Preform”
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netAbility toreball downto 0.15mmpitch,...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netMarkingIdentify parts which have bee...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBake Out + Dry PackUsed when shippin...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBake Out + Dry PackUsed when shippin...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Thermal gradient 2-3°C Soak tempe...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netLead-Free BGA ReballingConcerns Die...
Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netFor reballing projects:Call 847-797-...
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Why bga reballing and why it is important

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The BGA reballing process is explained in this slide set. The need for reballing is explained as well as the diifferent methods of reballing as a function of the number of devicss to be reballed and the type of BGA package being reballed.A brief description of the reballing process as well as some of the inspection tools is also discussed.If BGA reballing services are required then contact information for BGA reballing is on the last slide.

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Why bga reballing and why it is important

  1. 1. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netWhat is BGA Reballing andWhy it needs to be donewww.solder.net
  2. 2. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBGA Reballing• Handling of Parts• Data Sheets• Tools• Process• Inspection• “Gotchas”• Marking• Bakeout and Drypack• Profiling
  3. 3. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netWhy Devices Get ReballedAvailabilityAlloy conversionReworkWhy BGA Reballing isimportant
  4. 4. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHandling of Parts Work areas must be kept clean and neat inorder to prevent contamination of the workarea Stacking of devices should be avoided toprevent physical damage Trays for handling
  5. 5. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Components should be handled by the edges orwith proper ESD-safe tooling (JSTD-001) When not being worked on, sensitive componentsmust be enclosed in shielded bags or boxes. Whenever handling an area array device theoperator must be properly groundedHandling of Parts-ESD
  6. 6. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Devices should be handled at properlydesignated work areas only Designated ESD safe work areas mustbe checked periodically to ensure theircontinued safety from ESD Static dissipation of work surfaces Static dissipation of floor surfaces Designated work areas must be keptfree of static generating materials suchas styrofoam, vinyl, plastic, fabrics orany other static generating materialsHandling of Parts-ESD
  7. 7. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHandling of Parts-MSD Awareness of the MSD level Risk of “popcorning” or part delamination Logging system for control Dry box for control of moisture levels ofparts for reballing/rework (Do not open the doors too frequently and/ or for extended periods of time) Familiarity and knowledge ofIPC/JEDEC J-STD-033 (handling) J-STD-020 (parts classification)
  8. 8. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netData SheetsDrive the design of the fixture, stencils and preforms
  9. 9. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection
  10. 10. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection
  11. 11. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-Inspection Excessive graininess Incomplete reflow Poor wetting Balls with pits, voids, indentations,gouges and other depressionsexceeding 20% of ball diameter Burrs exceeding 10% of ball diameter Balls with peeling, flaking or blisteringSee IPC 7095
  12. 12. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netTools for Reballing-XRAY Inspection
  13. 13. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netHigh volume-several thousand piecesReball Process
  14. 14. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netFixtures and/or stainless stencilsReball ProcessModerate volume <2K pieces
  15. 15. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netNon contact deballingPhoto Courtesy of VJ Electronix
  16. 16. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netPhoto Courtesy of VJ ElectronixReball ProcessSemi-automated process
  17. 17. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netPick and Place solder ball pre-formPre-formPhoto Courtesy of VJ ElectronixReball ProcessSemi-automated process
  18. 18. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReflow spheres onto substratePhoto Courtesy of VJ ElectronixReball ProcessSemi-automated process
  19. 19. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReball ProcessLow Volume 1-several hundredCut in-house for fastestdelivery
  20. 20. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netReball Process“Peel Away Preform”
  21. 21. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netAbility toreball downto 0.15mmpitch, 4 milball sizeReball Process“Peel Away Preform”
  22. 22. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netMarkingIdentify parts which have beenreballedColordotsusedbysome
  23. 23. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBake Out + Dry PackUsed when shipping reballeddevices
  24. 24. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netBake Out + Dry PackUsed when shipping reballeddevices
  25. 25. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.net Thermal gradient 2-3°C Soak temperature (board) 150°C Short preheat (as needed) Reflow temp 210-220°C (liquidus 183°) Reflow time 45-90 seconds (for lead free), 30-60 seconds (forSn63Pb37)Proper Thermal Profiling
  26. 26. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netLead-Free BGA ReballingConcerns Die exposure to multiple heat cycles(can be overcome with process) Cross-contamination of materials(controlled by process)
  27. 27. Your BEST choice in PCB Test/ Rework/Repair and Solder Training & Tools www.solder.netFor reballing projects:Call 847-797-9250or send mail toinfo@solder.netwww.solder.net

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