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March 19, 2010
Board Talk
Staging Time Between Soldering and Cleaning
What is the maximum staging time permissible for PCBA's between wave soldering and cleaning? Is there an industry standard?  (Time 4:29) 		  Proper Storage Condition For PCBs
  Can Ultrasonic Cleaning Cause Damage?
  Squeegee and Stencil Life
  Max Idle Time After Print, Before Reflow
Ask the Experts
Hand Soldering vs. Selective Wave
Do you recommend a selective wave soldering process for an LCD glass display? Would the high heat cause thermal damage to the LCD?  (Time 0:53) 		  Cause of Open BGA Solder Joints?
  Nickel Barrier Thickness Requirement
  Technology to Measure Oxidation Levels
  Proper DI Water Resistivity for PCB Cleaning?
Mysteries of Science
Bright Metallic Paint's Secret
A technician determined how super-bright metallic paint was made without analyzing the material. How could this be done?  (Time 0:57) 		  The Recurring Transmitter Failure
  RCA TV Soldering Mystery
  Ant Farm in the Keyboard
  Lightning Jolts Student
Tech Notes
Design for Flip-Chip and Chip-Size Technology
This paper provides a comparison of flip-chip and wafer level array package methodologies detailed in IPC-7094.   (Time 0:51) 		  3 Steps To Solder Paste Selection
  Step Stencil Design for Handheld
  Pockets of Contamination
  Nitrogen Effect For Wave Soldering
Trends for Tomorrow
Material 200X Stronger Than Steel
Scientists have harnessed a material that is 200 times stronger than steel. The material is also used to make the graphite in pencils.  (Time 0:49) 		  Stem Cells Transform to New Tissue
  Safer MRI Breakthrough
  Insect Water Walking Mystery Solved
  Stop Thinking to Make a Decision
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