Industry Directory | Consultant / Service Provider / Manufacturer / Other
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.
The Laser Microjet� grinding system is suitable for grinding, drilling and slotting of wafers. It provides excellent capabilities for the removal of micro-cracks on the wafer edge. For more information please visit our website
New Equipment | Board Handling - Storage
Prevent your components from micro-cracking during reflow with proper Ultra-Low Humidity Storage. DXU models of maintain1%RH Wide range of cabinets including UL/C models Conforms to IPC/JEDEC J-STD 033B.1 Dehumidifies ICs to prevent micro-crack
Electronics Forum | Mon Aug 01 06:59:02 EDT 2005 | Joseph
Dear all, We observed visible micro crack at top side of solder fillet during lead free wave solder process. We did not see any visible micro crack at bottom side, and it always located at joints of transformer. Any input be much appreciated. Best
Electronics Forum | Tue Jul 01 07:08:33 EDT 2003 | iman
suggest you check the preheat conditioning in the wavesolder process is sufficient, as this is the main culprit for micro-crack CAPs ?
Used SMT Equipment | AOI / Automated Optical Inspection
Non-blind spot digital 8 projection moiré 3D inspection technology Inspection for diffuse reflection component, OCR, micro crack precisely by 8 phases coaxial color lighting Smallest componentinspection by ultra-high resolution camer
Industry News | 2017-04-24 19:04:48.0
This year, MIRTEC will launch several new inspection machines equipped new cutting-edge technologies. MIRTEC is proud to be promoting these new machines in booth #1J10 at NEPCON China 2017, one of the biggest technical exhibitions of SMT and EMA, from April 25-27 at the Shanghai World EXPO Exhibition & Convention Center. MIRTEC’s new machines have been developed under a concept, ‘Perfect Inspection Solution’. This is an inspection concept involving the combination of 3D, 2D, and side-camera inspection.
Industry News | 2010-04-30 18:47:15.0
SMTA China announces that it presented awards for the 10 best papers/presentations and two best exhibits at the SMTA China East 2010 Conference Award Presentation Ceremony, held on Wednesday, April 21, 2010 at the Shanghai Everbright International Hotel in conjunction with the SMTA China Annual Breakfast Reception.
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 | 2019-05-01 23:18:27.0
Moisture can accelerate various failure mechanisms in printed circuit board assemblies. Moisture can be initially present in the epoxy glass prepreg, absorbed during the wet processes in printed circuit board manufacturing, or diffuse into the printed circuit board during storage. Moisture can reside in the resin, resin/glass interfaces, and micro-cracks or voids due to defects. Higher reflow temperatures associated with lead-free processing increase the vapor pressure, which can lead to higher amounts of moisture uptake compared to eutectic tin-lead reflow processes. In addition to cohesive or adhesive failures within the printed circuit board that lead to cracking and delamination, moisture can also lead to the creation of low impedance paths due to metal migration, interfacial degradation resulting in conductive filament formation, and changes in dimensional stability. Studies have shown that moisture can also reduce the glass-transition temperature and increase the dielectric constant, leading to a reduction in circuit switching speeds and an increase in propagation delay times. This paper provides an overview of printed circuit board fabrication, followed by a brief discussion of moisture diffusion processes, governing models, and dependent variables. We then present guidelines for printed circuit board handling and storage during various stages of production and fabrication so as to mitigate moisture-induced failures.
Separate precise SMD thin board, aluminum PCB, for special board , needs customization. If any question, just feel free to contact bella@qy-smt.com and browse Website?https://morel-equipment.com/
http://www.pcb-separator.com/html/PRODUCTS/PCB%20separator/2015/0607/138.html ??????????? ???????? ????/?????? ???????? ???? ??????/??????????? ????/PCB Punch depanel machines
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/dage/test-types/brittle-fracture-testing
presence of micro cracks and surface defects such as scratches and chips. In these materials, the high level of stress at the tip of a crack cannot be relieved by plastic flow and so even very small defects can lead to low failure loads
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
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