Parts & Supplies | SPI / Solder Paste Inspection
Quick programming, friendly programming interface Multiple measurement methods True one-button measurement Eight-way motion button, one-click focus Adjustable scanning pitch Solder paste 3D simulation function Powerful SPC function MARK
Events Calendar | Mon Mar 16 00:00:00 EDT 2020 - Mon Mar 16 00:00:00 EDT 2020 | ,
BGA & Area Array Failures, Causes & Corrective Actions Online Webinar
Training Courses | | | PCB Inspection Courses
The PCB inspection courses focus on improving PCB yield and reliability through validation and detection of defects on electronics assemblies.
Technical Library | 2019-06-21 10:39:15.0
Recently, an ACI Technologies (ACI) customer called to discuss failures that they had observed with some through-hole capacitor parts. The components were experiencing failures following vibration and accelerated stress testing. Upon receipt of the samples, ACI performed three levels of inspection and Energy Dispersive Spectroscopy (EDS) testing to investigate the root cause of the failures. These analyses enabled ACI to verify the elements comprising the solder joints and make the following recommendations in order to prevent future occurrences. The first inspection was to investigate the capacitor leads using optical microscopy, and no anomalies were found that could indicate bad parts from the vendor or improper handling prior to assembly. However, vertical fill in the barrel of the plated through-holes was too close to the IPC-A-610 minimum specification of 75% to determine a pass/fail condition, and therefore required further investigation.
Technical Library | 2020-12-07 15:26:06.0
Temperature cycling testing is a method of accelerated life testing done to PCCs that are exposed to normal operation temperature variations over its lifetime. During the testing, intermittent "open" failures can first occur at the hot and cold extremes of the test, exposing weaknesses in the design and assembly. A poor/weak solder joint fatigues, a via trace or barrel cracks, loose connections or a component fails all causing an intermittent open. When not at extreme temperatures, the PCC assembly relaxes, the "open" closes creating electrical connectivity. If you are monitoring the PCC under test in-situ you will know that an intermittent failure has occurred, and the test could be stopped for inspection. If in-situ monitoring was not implemented, you would not know if there were intermittent failures or not. The PCC gets powered up and works fine at room temperature.
Events Calendar | Tue Apr 06 00:00:00 EDT 2021 - Tue Apr 06 00:00:00 EDT 2021 | ,
Capital Chapter Webinar: Next Gen Lead Free Solders for High Reliability & SMT Yield improvement
Technical Library | 2019-06-07 14:49:54.0
ACI Technologies was contacted in regards to poor solder joint reliability. The customer submitted an assembly that was exhibiting intermittent opens at multiple locations on a ball grid array (BGA) component. The assembly’s functionality did not survive international shipping, essentially shock and vibration failures, immediately making the quality of the solder joints suspect. The customer was asked about the contract manufacturer and the reflow oven profile as well as the solder paste and surface finish used. The ACI engineering staff evaluated the contract manufacturer’s technique and determined that they were competent in the methods they used for placing thermocouples in the proper locations and developing the reflow oven profile. The surface finish was unusual, but not unheard of, in that it was hard gold over hard nickel, rather than electroless nickel immersion gold (ENIG). The customer was able to supply boundary scan testing data which showed a diagonal row of troublesome BGA pins.
I.C.T Provide SMT Production Line solutions with Automated Optical Inspection (AOI) AOI is short for Automated Optical Inspection, which is widely used in the electronics industry to check the appearance of PCBA assembly at the back end of the cir
New Equipment | Wave Soldering
High-End Nitrogen Wave Soldering Equipment - Lead-Free Precision Soldering Machine Experience the pinnacle of soldering technology with our high-end nitrogen wave soldering equipment. This lead-free soldering machine offers precision soldering for
Industry News | 2023-03-16 14:31:59.0
The SMTA is pleased to announce the Best Papers from SMTA International 2022. The winners were selected by members of the conference technical committee. For these exceptional achievements, a plaque is given to primary authors of all winning papers.
