Industry Directory | Consultant / Service Provider / Manufacturer
Designer & Manufacturer of Acoustic Microscopes for Nondestructive Component Inspection.
New Equipment | Rework & Repair Equipment
BEST HeatShield Gel™ is a thermal shield water-based gel designed to be used in the PCB rework/repair or board assembly areas in order to provide thermal protection of electronic components. It is truly a revolutionary means to protect components. It
If you have boards requiring high tolerance mechanical dimension or odd shapes that traditional depaneling methods cannot handle. BEST Inc. provides laser depaneling services for printed circuit board manufacturers as well as EMS and OEMs. BEST’s nu
Industry News | 2010-08-17 11:50:19.0
Count On Tools Inc., a leading provider of precision components and SMT spare parts, introduces its newly redesigned series of Siemens ceramic replacement nozzles.
Industry News | 2018-12-08 03:27:35.0
Printed Circuit Board (PCB) for Surface Mount Technology (SMT)
Technical Library | 2022-09-25 20:18:33.0
Printed circuit board (PCB) bending and/or flexing is an unavoidable phenomenon that is known to exist and is easily encountered during electronic board assembly processes. PCB bending and/or flexing is the fundamental source of tensile stress induced on the electronic components on the board assembly. For more brittle components, like ceramic-based electronic components, micro-cracks can be induced, which can eventually lead to a fatal failure of the components. For this reason, many standards organizations throughout the world specify the methods under which electronic board assemblies must be tested to ensure their robustness, sometimes as a pre-condition to more rigorous environmental tests such as thermal cycling or thermal shock.
Technical Library | 2022-09-25 20:03:37.0
Cracking remains the major reason of failures in multilayer ceramic capacitors (MLCCs) used in space electronics. Due to a tight quality control of space-grade components, the probability that as manufactured capacitors have cracks is relatively low, and cracking is often occurs during assembly, handling and the following testing of the systems. Majority of capacitors with cracks are revealed during the integration and testing period, but although extremely rarely, defective parts remain undetected and result in failures during the mission. Manual soldering and rework that are often used during low volume production of circuit boards for space aggravate this situation. Although failures of MLCCs are often attributed to the post-manufacturing stresses, in many cases they are due to a combination of certain deviations in the manufacturing processes that result in hidden defects in the parts and excessive stresses during assembly and use. This report gives an overview of design, manufacturing and testing processes of MLCCs focusing on elements related to cracking problems. The existing and new screening and qualification procedures and techniques are briefly described and assessed by their effectiveness in revealing cracks. The capability of different test methods to simulate stresses resulting in cracking, mechanisms of failures in capacitors with cracks, and possible methods of selecting capacitors the most robust to manual soldering stresses are discussed.
Events Calendar | Sun Mar 15 18:30:00 UTC 2020 - Sun Mar 15 18:30:00 UTC 2020 | ,
BGA & Area Array Failures, Causes & Corrective Actions Online Webinar
SMTnet Express, January 25, 2024, Subscribers: 25,319, Companies: 12,002, Users: 28,668 █ Electronics Manufacturing Technical Articles Cracks: The Hidden Defect Cracks in ceramic chip capacitors can be introduced at any process step
SMTnet Express, February 29, 2024, Subscribers: 25,362, Companies: 12,025, Users: 28,728 █ Electronics Manufacturing Technical Articles Cracks: The Hidden Defect Cracks in ceramic chip capacitors can be introduced at any process step
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/sonoscan/support/application-notes
Plastic ICs/PEMs Flex Circuit Smart Card Bonded Wafers Chip Scale Package Flip Chip Hybrid Ceramic Solar Cells Packaging, Seals Materials Other Plastic ICs/PEMs
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/last-will-of-bga-void.pdf
. An opposing school of thought was that voids act as crack arrestors, which improve solder joint life. The root cause of voids in BGA solder joints is well understood by the electronics industry with a number of papers published on the topic [1, 2, 3]. R
