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Taiwan Dry Tech Corp. manufacturer of Eureka Dry Tech Fast Super Dryers for moisture/humidity proof protective storage of PCB, MSD, IC packages, meets IPC/JEDEC J-STD-033 & IPC-1601.
Industry Directory | Consultant / Service Provider / Manufacturer
Eureka Dry Tech's IPC/JEDEC J-Std-033c Ultra Low Humidity Dry Cabinets provides moisture/humidity controlled storage of MSD，PCB, IC packages. Drying technology trusted by millions in replacing baking, nitrogen & desiccant packs.
Inline 3D PCB Automated X-ray Inspection System - Advanced Quality Assurance Solution ❙ Introduce of SMT PCBA X-ray Machine Explore our Inline 3D PCB Automated X-ray Inspection System, a cutting-edge solution for advanced quality assurance in PCB
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Electronics Forum | Wed Sep 30 11:32:45 EDT 2009 | pbarton
What type of conformal coating are you using and are you allowing the coating to migrate under the device in question? If you are allowing the coating unbder the BGA the problem could be CTE of coating is much greater than that of the BGA balls/sold
Electronics Forum | Thu Oct 01 03:03:29 EDT 2009 | cunningham
what we are getting is open circuits not every BGA is failing we use Humiseal 1A33 and currently there is no masking instruction for around the BGA
Industry News | 2009-02-03 13:34:04.0
New PCB Rework, Repair, Fabrication Training & Consulting Services.
Industry News | 2013-01-30 17:54:43.0
Design, assembly, inspection and repair personnel have a new tool to help improve reliability of ball grid arrays (BGAs) and fine-pitch ball grid arrays (FBGAs) in high density applications, thanks to the newly released C revision of IPC-7095, Design and Assembly Process Implementation for BGAs.
Technical Library | 2019-10-21 09:58:50.0
An ACI Technologies customer inquired regarding printed circuit board(PCB) failures that were becoming increasingly prevalent after the SMT (surface mount technology) manufacturing process. The failures were detected by electrical testing, but were undetermined as to the location and specific devices causing the failures. The failures were suspected to be caused predominately in the BGA (ball grid array) devices located on specific sites on this 16 layer construction. Information that was provided on the nature of the failures (i.e., opens or shorts) included high resistance shorts that were occurring in those specified areas. The surface finish was a eutectic HASL (hot air solder leveling) and the solder paste used was a water soluble Sn/Pb(tin/lead).
Technical Library | 2009-11-05 11:17:32.0
Head-in-pillow (HiP), also known as ball-and-socket, is a solder joint defect where the solder paste deposit wets the pad, but does not fully wet the ball. This results in a solder joint with enough of a connection to have electrical integrity, but lacking sufficient mechanical strength. Due to the lack of solder joint strength, these components may fail with very little mechanical or thermal stress. This potentially costly defect is not usually detected in functional testing, and only shows up as a failure in the field after the assembly has been exposed to some physical or thermal stress.
Bob Willis "How to Do It" video clip explains how to test BGA or Area Array Packages for solderability. The reason this is difficult to do by other means is the solder terminations would be displaced during solder contact. A simple test like this als
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SMTnet Express, October 24, 2019, Subscribers: 32,268, Companies: 10,908, Users: 25,250 Investigation of PCB Failure after SMT Manufacturing Process Credits: ACI Technologies, Inc. An ACI Technologies customer inquired regarding PCB failures
Heller 公司 | http://hellerindustries.com.cn/Vacuum-Void-Reduction-Reflow.pdf
Weibull slopes. Failure Analysis The -55/125 °C thermal cycling test started substantially after the 0/100 °C test, and only samples from the 0/100 °C cycle were available for failure analysis at the time of this writing. Examples of void-assisted solder
