New Equipment | Solder Materials
ALPHA® wave solder and soldering bar metals (wave soldering alloys) offer best value soldering performance – quality solder bar metals products at the lowest cost of ownership, and thanks to a global copy exact product policy, consistency of wave sol
We can help you eliminate rust, tarnish, corrosion, poor wetting and add years to your components or PC boards shelf-life. Dasal Technical Products, Inc. markets and distributes a state-of-the-art technology for the preservation and protection of met
Electronics Forum | Tue May 23 09:01:48 EDT 2006 | russ
Seems as though the problem is with PCB and not component? "Solder does not wet to pads, wets to component" What is your board finish? Russ
Electronics Forum | Mon Jul 29 18:59:08 EDT 2002 | davef
Stand-ups are a common problem with 0402. Search the fine SMTnet Archives to get started.
Industry News | 2003-07-02 08:54:26.0
A novel unreinforced, thermally conductive, pressure sensitive adhesive tape delivers very high bond strength to low-energy surfaces.
Industry News | 2009-02-03 13:34:04.0
New PCB Rework, Repair, Fabrication Training & Consulting Services.
Technical Library | 2013-12-27 10:39:21.0
The head-in-pillow defect has become a relatively common failure mode in the industry since the implementation of Pb-free technologies, generating much concern. A head-in-pillow defect is the incomplete wetting of the entire solder joint of a Ball-Grid Array (BGA), Chip-Scale Package (CSP), or even a Package-On-Package (PoP) and is characterized as a process anomaly, where the solder paste and BGA ball both reflow but do not coalesce. When looking at a cross-section, it actually looks like a head has pressed into a soft pillow. There are two main sources of head-in-pillow defects: poor wetting and PWB or package warpage. Poor wetting can result from a variety of sources, such as solder ball oxidation, an inappropriate thermal reflow profile or poor fluxing action. This paper addresses the three sources or contributing issues (supply, process & material) of the head-in-pillow defects. It will thoroughly review these three issues and how they relate to result in head-in pillow defects. In addition, a head-in-pillow elimination plan will be presented with real life examples will be to illustrate these head-in-pillow solutions.
Technical Library | 2021-07-06 21:13:36.0
The surface finishes commonly used on printed circuit boards (PCBs) have an effect on solder paste performance in the surface mount process. Some surface finishes are non-planar like hot air solder level (HASL) which can lead to inconsistencies in solder paste printing. Other surface finishes are difficult to wet during reflow like organic solderability preservative (OSP). What is the overall effect of surface finish on solder paste performance? Which solder paste is best for each surface finish? It is the goal of this paper to answer these questions.
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
Career Center | Oldsmar, Florida USA | Maintenance,Production
Job Description: • Uses microscope to verify correct part placement and orientation, manually align parts before soldering and perform post re-flow inspection and touch-up. • Able to identify and touch up poor wetted solder joints, solder voids / i
Career Center | Oldsmar, Florida USA | Engineering,Maintenance,Production
Job Title: Assembler 2 – IPC 610 – 1st Shift Address: 3655 Tampa Rd, Oldsmar FL 34677 Duration: 1 year Pay Rate: $15-$18 Hours: 9/80 schedule Monday – Thursday 6:00AM – 3:30PM, Friday 6:00AM to 2:30PM Job Description: Use microscope to verify
SMT Express, Issue No. 5 - from SMTnet.com Volume 1, Issue No. 5 Wednesday, October 13, 1999 Featured Article Return to Front Page HASL WHAT A HASSLE, or HASL'd AGAINby Earl Moon INTRODUCTION This article updates one I wrote for Printed
ATTENDANT WET CHEMICAL PROCESSES) Hole wall preparatio
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/leadfree.pdf
: T, S, C, A Atmosphere: Nitrogen Temperature:240°C Large Unacceptable Void – Likely Due to Bad Wetting (Lead Free HASL Candidate
