New Equipment | Education/Training
This 3-day, lectured course utilizes the images in the IPC-A-610 inspection document to provide visual accept/reject criteria examples for all three classes of assembly production–in both lead and lead-free. The IPC-A-610, “The Acceptabil
New Equipment | Education/Training
This 4-day, lectured course utilizes the images in the IPC-A-610 document to provide visual accept/reject criteria examples for all three classes of assembly production–for both lead and lead-free. The IPC-A-610, “The Acceptability of Ele
Technical Library | 2020-02-26 23:24:02.0
Shielding electronic systems against electromagnetic interference (EMI) has become a hot topic. Technological advancements toward 5G standards, wireless charging of mobile electronics, in-package antenna integration, and system-inpackage (SiP) adoption are driving the need to apply more effective EMI shielding and isolation to component packages and larger modules. For conformal shielding, EMI shielding materials for exterior package surfaces have mostly been applied with a physical vapor deposition (PVD) process of sputtering, leveraging front-end packaging technologies to back-end packaging applications. However, sputtering technology challenges in scalability and cost along with advancements in dispensable materials are driving considerations for alternative dispensing techniques for EMI shielding.
Technical Library | 2020-03-09 10:50:17.0
A customer called the Helpline seeking advice for cleaning no-clean fluxes prior to applying a conformal coating. The customer's assemblies were manufactured with a no-clean rosin based solder paste (ROL0) and were cleaned with an isopropyl alcohol (IPA) wash. After cleaning, a white residue was sometimes found in areas with high paste concentrations and was interfering with the adhesion of the conformal coating (Figure 1). For conformal coatings to adhere properly, the printed circuit board (PCB) surface must be clean of fluxes and other residues. In addition, ionic contamination left by flux residues can lead to corrosion and dendrite growth, two common causes of electronic opens and shorts. Other residues can lead to unwanted impedance and physical interference with moving parts.
Technical Library | 2020-11-09 16:59:53.0
A customer contacted ACI Technologies regarding a high failure rate of their assemblies. They provided assemblies to be X-rayed and inspected for the purpose of identifying any process related issues such as (but not limited to) solder and assembly workmanship and evidence of damage due to moisture related problems during reflow (a.k.a. "popcorning"). Moisture damage usually appears as physical damage to the component. The first indication of moisture damage would be externally observable changes to the package in the form of bulging or fractures to the outer surface of the component, an example of which is shown in Figure 1. Internally observable indicators of moisture damage typically include fractures to the die inside the package and lifted or fractured wire bonds. These conditions would be apparent during transmissive X-ray inspection. Another symptom of moisture related damage would be inconsistent solder joint sizes that result from package deformation during the liquidus phase of the reflow process. None of these indicators of moisture related damage were present on the customer samples.
Technical Library | 2021-06-15 15:17:33.0
Shielding electronic systems against electromagnetic interference (EMI) has become a hot topic. Technological advancements toward 5G standards, wireless charging of mobile electronics, in-package antenna integration, and system-in-package (SiP) adoption are driving the need to apply more effective EMI shielding and isolation to component packages and larger modules. For conformal shielding, EMI shielding materials for exterior package surfaces have mostly been applied with a physical vapor deposition (PVD) process of sputtering, leveraging front-end packaging technologies to back-end packaging applications. However, sputtering technology challenges in scalability and cost along with advancements in dispensable materials are driving considerations for alternative dispensing techniques for EMI shielding.
Industry News | 2012-07-23 18:32:34.0
The SMTA Capital Chapter is pleased to invite you to the upcoming Capital Expo and Tech Form on August 23, 2012 from 9:00 am until 3:00 pm at Johns Hopkins Applied Physics Lab.
Industry News | 2017-08-06 19:39:48.0
The SMTA Capital Chapter is pleased to announce that Gerry Partida of Summit Interconnect, will present “Density, Advanced Materials and Cost Drivers Associated with Advanced Circuit Design, Fabrication and Assembly” at the upcoming Capital Expo and Tech Forum at Johns Hopkins University / Applied Physics Lab, Kossiakoff Center, on Thursday, August 24th.
Industry News | 2021-02-08 15:08:49.0
IPC announces the release of IPC-2551, International Standard for Digital Twins. Thisfirst international standard is comprised of digital twin product, manufacturing, and lifecycle frameworks. Using this standard, any manufacturer, design organization or solution provider can initiate application interoperability to create smart value chains.
Training Courses | | | IPC Designer Certification CID
The Certified IPC Designer CID (Certified Interconnect Designer) course is the industry's premier professional development program for experienced PCB design professionals.
