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BGA Rework Process Implementation

Training Courses | | | PCB Rework and Hand Soldering Courses

The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.

Precision PCB Services, Inc

BGA Rework Process Implementation

Training Courses | | | PCB Rework and Hand Soldering Courses

The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.

Precision PCB Services, Inc

New development of SMT Assembly Intelligent Inspection Technologies

Industry News | 2022-11-28 07:00:51.0

With the development of the precision and stability of SMT equipment, the manufacturing process and testing links have gradually become the key to the development of the industry. At the same time, the fierce competition in the consumer electronics market has put forward higher requirements for the quality of electronic components. In the production process, it is necessary to use various testing technologies to inspect defects and faults in time and repair them, among these testing technologies, X-ray inspection is one of the most critical process to improve the SMT BGA QFN soldering quality.

Unicomp Technology Co., Ltd

How much voiding to allow on QFN's

Electronics Forum | Tue Jan 12 15:29:40 EST 2010 | davef

What is your concern regarding voiding in QFN solder connections?

Voiding in LGA (LT) soldering

Electronics Forum | Thu Sep 02 06:22:34 EDT 2010 | sachu_70

Good. This is the right way to profile. Let me ask you, have you anytime soldered QFN componets on your boards? The concept of LGA soldering is similar to that used for a QFN package. QFN soldering also exhibits void formations, and is an inherent pr

QFN soldering

Electronics Forum | Fri Apr 06 11:10:43 EDT 2012 | cadco

We are a PCB design house/CM and we have found that if you elongate the QFN pads to the outside of the part by .025 to .030 you then have the opportunity of doing touch-up manually with a soldering iron should there be a voiding issue. This would hav

QFN Side fillet

Electronics Forum | Fri Jul 19 13:02:01 EDT 2019 | davef

Double-check me on this, but I don't believe that A-610 [IPC-A-610] requires side fillets on QFN solder connections, because the sides of most terminations are not plated. Plating on the bottom of the termination is sufficient for a proper solder con

NXP QFN Solderability Wetting Problems, Kester

Electronics Forum | Thu Aug 10 11:24:18 EDT 2017 | dleeper

The exposed metallization on the sides of the QFN probably aren't tinned and therefore not expected to have solder wetted to them. If previous parts formed nice toe filets, it might just be that those parts were fresher and the exposed metal did not

QFN soldering

Electronics Forum | Mon Nov 19 13:13:51 EST 2007 | hegemon

We have found differing results based on the pattern used when reducing to total % of solder paste on the center pad. We arrived at 68% coverage on the center pad, and 1:1 for the perimeter pads. To get the 68% coverage we used a number of differen

NXP QFN Solderability Wetting Problems, Kester

Electronics Forum | Thu Aug 10 10:52:11 EDT 2017 | ttheis

We are just using a stereo microscope at this time. When we first started out with these parts a year ago they filleted very well but with no apparent change they began having problems. While the boards do work, we are concerned about the long term r


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