Many materials and components cannot endure the stress of
elevated temperatures. For conventional reflow processing, materials
and components may experience temperatures above 220 °C.
In 2003, Analog began working on solutions to attach components
in applications that could not withstand these temperatures.
As a result, Analog developed it’s own proprietary laser
soldering machine. Once the laser soldering machine was realized,
other applications were addressed including laser balling and
re-balling.
Laser Balling and Re-balling
Re-ball BGAs or CSPs without sacrificing
heat cycles
Maintain component reliability
Improved solder joint quality
Lead-free to lead/lead
and lead/lead to lead-free conversions
Convection Reflow: Solder
Balls attached in a convection oven with nitrogen. Irregular
shape is caused by some oxygen presence(~75 ppm).
Laser Reflow: Typical untouched pristine
appearance of laser-reflowed solder balls re-balled using
proprieatary process on the same BGA.
BGA and CSP ball repair
Selective Soldering Applications
Low Tg materials
Temperature sensitive components
Fully Characterized and Qualified Process
Fast Turn Service Available
NEWS
Analog’s
Laser Balling and Re-balling process
is featured in Circuits
Assembly’s Oct-2008 issue!