Reflow Soldering, Profiling
These programs cover reflow soldering, vapor phase, profiling, thermocouples, data collection and more.
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Effect of Thermal Cycling Dwell Time on High-Performance Solder Alloys
Effect of Thermal Cycling Dwell Time on High-Performance Solder Alloys
This paper describes the planning and progress of the experimental program designed to assess the effect of a 60-minute temperature cycling dwell time.
Analysis Lab

Void-Free Soldering With Vapor-Phase Vacuum Tech
Void-Free Soldering With Vapor-Phase Vacuum Tech
This paper explores equipment that has been developed to achieve void-free joints using modern condensation reflow technology.
Production Floor

Reflow For Rigid Flex
Reflow For Rigid Flex
We have a new PCB assembly that includes a section of flex cable and FR4 circuit board. What are the reflow rules I need to consider? The Assembly Brothers, Phil Zarrow and Jim Hall, discuss the most important reflow guidelines in this scenario.
Board Talk

Proper Exhaust Pressure for Reflow Ovens?
Proper Exhaust Pressure for Reflow Ovens?
What is the proper exhaust pressure for a reflow over? Where should we measure the pressure? How should we measure pressure?
Board Talk

Max Interval Between Reflow for OSP Boards
Max Interval Between Reflow for OSP Boards
With OSP coated circuit boards, what is the maximum allowable time interval between reflow of the first and second sides to insure proper wetting.
Board Talk

Understanding PCB Design Variables That Contribute to Warpage
Understanding PCB Design Variables That Contribute to Warpage
To improve attachment yield rates, an evaluation several PCB design variables that are believed to contribute to warpage during reflow is proposed.
Analysis Lab

Reflow Oven Zone Separation Challenges
Reflow Oven Zone Separation Challenges
Some of the zones or our oven profiler are competing to get to the correct temperature. How do I prevent the oven from having competing zones? Jim Hall and Phil Zarrow, The Assembly Brothers, answer this question.
Board Talk

How Frequently Should  We Recheck Profiles?
How Frequently Should We Recheck Profiles?
Is it necessary to replicate thermal profiling during long-term mass production? Is it necessary to recheck accuracy of reflow oven profiles periodically?
Board Talk

Solder Ball Joint Reliability with Electroless NI-PD-AU Planting
Solder Ball Joint Reliability with Electroless NI-PD-AU Planting
The influence of Pd film thickness in electroless Ni/Pd/Au plating on the solder ball joint reliability after reflow cycles and thermal aging was investigated.
Analysis Lab

Probe Contact Issues with No-Clean Pin-in-Paste
Probe Contact Issues with No-Clean Pin-in-Paste
We are having issues with our no-clean pin in paste process caused by flux residue on the surface of the solder joint. Should all flux vaporize off during reflow?
Board Talk