IPC OUTLOOK Logo
The Knowledge and Know-how Connection
Loading
IPC OUTLOOK Logo
February 22, 2012
Lifted Leads on QFP Components
Program: Ask the Experts
Max Interval Between Reflow for OSP Boards
Program: Board Talk
How Many Zones Needed for Lead-free Profile?
Program: Ask the Experts
Solder Bridging on BGAs
Program: Ask the Experts
Solderability Problems at Low Humidity
Program: Board Talk
Component Damage From IR Reflow
Program: Ask the Experts
Lead-free Reflow and Influence of Moisture
Program: Analysis Lab
Going Lead Free with Vapor Phase Soldering
Program: Production Floor
LGA/QFN Packages Floating During Reflow
Program: Analysis Lab
What Causes Chip Blow Off During Reflow?
Program: Board Talk
How To Eliminate Pesky Solder Balls?
Program: Board Talk
Weight Limit for Double Sided Reflow of QFNs
Program: Production Floor
IR or Vapor Phase for Prototypes
Program: Board Talk
SMT Component Shift
Program: Ask the Experts
BGA Shifting During Reflow
Program: Ask the Experts
Adding Weights to Components During Reflow
Program: Board Talk
Vapour Phase - Profiling for Lead-Free Alloys
Program: Production Floor
What Is the Life Span for a Profile Board?
Program: Ask the Experts
Understanding the Process Window Index
Program: Analysis Lab
Tin-lead Reflowed at Lead-free Temps
Program: Board Talk
Tip For Non-Destructive BGA Profiling
Program: Analysis Lab
Reflow Optimization for MLP Components
Program: Production Floor
Cause of Defective Solder Joints
Program: Board Talk
Reflow Oven Testing and Calibrating
Program: Ask the Experts
Problems With Skewed D-Pak Components
Program: Ask the Experts
 1 of 7 
These programs cover reflow soldering, profiling, data collection and more.
Lifted Leads on QFP Components
After placement and reflow, we are having a random lifted lead problem on some QFP's. Is a 1% fall out rate normal? What might be the cause?
Program: Ask the Experts
Max Interval Between Reflow for OSP Boards
With OSP coated circuit boards, what is the maximum allowable and recommend time interval between reflow of the first and second sides to insure proper wetting.
Program: Board Talk
How Many Zones Needed for Lead-free Profile?
How many zones are required to run a lead-free profile? Does the number of zones dictate capability or do they only matter for throughput?
Program: Ask the Experts
Solder Bridging on BGAs
What causes solder bridging on BGAs? Could it be moisture sensitivity, excessive solder paste, mismatched reflow profile or something else?
Program: Ask the Experts
Solderability Problems at Low Humidity
Can very low humidity effect solderability of PCB assemblies. Are there other concerns when working in very low humidity?
Program: Board Talk
Component Damage From IR Reflow
We have an SMT package with J formed leads that crack at the shoulder after IR reflow. What could be causing these defects?
Program: Ask the Experts
Lead-free Reflow and Influence of Moisture
This paper examines concerns relating to lead-free reflow, PCB degradation, and the influence of moisture absorption.
Program: Analysis Lab
Going Lead Free with Vapor Phase Soldering
Many companies have not found the right solutions to change over to lead free yet. Vapor phase reflow soldering can be an answer.
Program: Production Floor
LGA/QFN Packages Floating During Reflow
Industry expert Bob Willis explains why LGA/QFN packages may float during reflow and how this defect may be associated with excess voids and open solder joints.
Program: Analysis Lab
What Causes Chip Blow Off During Reflow?
What can cause a 0603 passive component to blow off the circuit board during reflow as if a firecracker was put underneath?
Program: Board Talk
 1 of 7 
IPC OUTLOOK Logo IPC — Association Connecting Electronics Industries
3000 Lakeside Drive, 309 S, Bannockburn, IL 60015
Phone: 978-478-5112 | Fax: 843-682-4255
Sandy Gentry, Editor | Kim Sterling, Publisher
About IPC Outlook  |  Contact Us  |  Privacy Policy  |  Terms of Use  |  Sponsorships