Electronics Forum: dfree (1)

Solder flags

Electronics Forum | Mon Dec 08 02:04:37 EST 2008 | lococost

IPC S-900T AERO states that these flags are usually caused by the the removal of l�d from solder(l�dfree). Acceptability depends on form/casing. e.g: you wouln't want a tin flag hanging out of your cellphone. Thanks for making my mondaymorning mor

Technical Library: dfree (2)

Investigation and Development of Tin-Lead and Lead-Free Solder Pastes to Reduce the Head-In-Pillow Component Soldering Defect.

Technical Library | 2014-03-06 19:04:07.0

Over the last few years, there has been an increase in the rate of Head-in-Pillow component soldering defects which interrupts the merger of the BGA/CSP component solder spheres with the molten solder paste during reflow. The issue has occurred across a broad segment of industries including consumer, telecom and military. There are many reasons for this issue such as warpage issues of the component or board, ball co-planarity issues for BGA/CSP components and non-wetting of the component based on contamination or excessive oxidation of the component coating. The issue has been found to occur not only on lead-free soldered assemblies where the increased soldering temperatures may give rise to increase component/board warpage but also on tin-lead soldered assemblies.

Christopher Associates Inc.

Corrosion Resistance of Different PCB Surface Finishes in Harsh Environments

Technical Library | 2012-08-09 20:33:45.0

First published in the 2012 IPC APEX EXPO technical conference proceedings. Corrosion resistance is becoming one of the most important topics in the electronics industry. Corrosion results in field failures and huge losses, which annually total several bi

Atotech


dfree searches for Companies, Equipment, Machines, Suppliers & Information

Sm t net
  1  
Flux-Free Reflow Soldering

Want to know where to find the best AOI system? - Read testimonials.
Digital Inspection Equipment

Best Reflow Oven
IPC Training & Certification - Blackfox

Easily dispense fine pitch components with ±25µm positioning accuracy.
Selective Conformal Coating System

Have you found a solution to REDUCE DISPENSE REWORK? Your answer is here.
Golden Tech Electronics

Thermal Transfer Materials.