circuitnet
Sponsor
Master Bond
High Temp & Chemical Resistant Epoxy
Master Bond EP62-1AO is an electrically insulating adhesive that withstands harsh chemical environments while delivering thermal conductivity. View full specs.
Master Bond
The Most Effective Through Hole Rework
Sponsor
DL Technology
Micro Dispensing Technology White Paper
The trend toward micro-dispensing technology increases as electronic assembly's shrink & component packages decrease in size.
DL Technology
Ask the Experts
QUESTIONS
  
SUBMIT
  
MEMBERS
  
JOIN
July 5, 2011 - Updated
July 5, 2011 - Originally Posted

BGA Pad Lifting

After reworking BGA components that use thermal grease we sometimes notice pad lifting. Can the BGA pads be repaired? Any suggestions?
B. W.
Expert Panel Responses
Pad damage at BGA sites can be repaired reliably following the IPC 7711/7721 Repair guide, procedure 4.7.3 Surface Mount, BGA Pad Repair, Film Adhesive Method. This is a very common occurrence and with a skilled Operator the repair process can be performed to very high level.

Andy Price
Andy Price
Sales Engineer, Circuit Technology Center
Mr. Price has been a key member of the team at Circuit Technology Center since 1985. He has vast expertise, experience and understanding of complex circuit board rework, repair and modification operations. He is one of the most knowledgeable experts in this area across the globe.
My Opinion: I suggest on preventing the Pad lift not the repair

Keshava Murthy
Keshava Murthy
Process Engineer, Bosch Automotive Electronics India Ltd.
Keshava Murthy is a Process Engineer in the PCB assembly industry working in Bangalore, India.
When you say pad, are you talking about the pad on the board? If so, the board would need to go to a board repair facility. If you are talking about the ball on the BGA itself, there are several kits available that would allow you to re-ball the component.

Stephanie Nash
Stephanie Nash
Director, Integrated Ideas & Technologies, Inc.
Stephanie Nash is the Director of Technical Services & Marketing for Integrated Ideas & Technologies, Inc., a premier manufacturer of SMT stencils. She has been instrumental in the stencil design and technical support.
Submit A Comment
Comments are reviewed prior to posting. You must include your full name to have your comments posted. We will not post your email address.

Your Name


Your Company
Your E-mail


Your Country
Your Comments



Free Newsletter Subscription
Circuitnet is built for professionals who bear the responsibility of looking ahead, imagining the future, and preparing for it.

Insert Your Email Address

Sponsor
Ormet TLPS
AIT ORMET® TLPS for Thermal Conductivity
AIT ORMET® TLPS is proven with stress relief for stable long-term metallic thermal conductivity & low thermal interface resistance for high temp >175°C
Ormet TLPS
Complete Solutions