Industry Directory | Manufacturer
China Aotomay Plastics is the Supplier & Manufacturer who specialized in high-quality Engineering Plastics sheets, Rod, ESD/Antistatic materials, phenolic laminated Sheet, Epoxy Glass Sheet, solder pallet material,insulation mater
Industry Directory | Manufacturer
Permabond is a leading manufacturer of engineering adhesives, supplying high-quality industrial adhesives to customers worldw
New Equipment | Fabrication Services
Aluminum PCB & Metal Core PCB & LED PCB Circuit board Aluminium PCB are metal-based, copper-clad laminates with a good heat dissipation function. Usually, Aluminium PCB is refer to LED PCB board, which is the most important part of LED display and l
PCBA V-cut machine F886 automatic v-groove pcb cutting machine Features ▶HMI touch screen control, simple operation, training can be mastered and used. ▶PLC+ servo motor control, stable and reliable performance, higher repeatability. ▶The width of t
Used SMT Equipment | Adhesive Dispensers
Fuji GL541E *Basic Specifications Cycle time 0.09 seconds/dot Travel distance - X-axis within 8mm Y-axis within 6mm Needle up/down distance of 8mm Application time: 0.05 seconds Dispensing accuracy: +/- 0.15mm in th X and Y directions (3 sigma)
Used SMT Equipment | AOI / Automated Optical Inspection
Dimensions 800 W x 1280 D x 600 H mm (31.5 W x 50.39 D x 23.62 H in.) (* ) Weight Approx. 175 Kg (385.8 lb) PCB Size 50 W x 50 L - 460 W x 500 L mm (1.97 W x 1.97 L – 18.11 W x 19.69 L in.) PCB Thickness 0.6 - 2
Industry News | 2018-12-08 03:27:35.0
Printed Circuit Board (PCB) for Surface Mount Technology (SMT)
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Technical Library | 2022-01-26 15:26:56.0
In this work an attempt is made to improve the fracture toughness and electrical conductivity of epoxy/glass fiber based laminates by the inclusion of carbon nanotube (CNT) fillers. The fiber orientation of the epoxy/ glass fiber (GF) fabric laminates was optimized based on estimation of mechanical properties. The carboxylic acid functionalized CNTs were incorporated into epoxy matrix by ultra-sonication method. The nano filled epoxy resin was used to prepare laminates with 30/45 GF fabric orientation. The CNT content was varied and its effect on the tensile properties was determined. The fracture toughness of multiphase composites was estimated using single edge notch bend (SENB) test. The presence of CNTs improved the fracture toughness by a crack bridging mechanism. The volume resistivity of multiphase composites was found to be superior to the conventional epoxy/CNT composite. The presence of glass fabric reduces the number of inter-tube contacts contributing to the reduction in volume resistivity.
Technical Library | 2013-08-22 14:28:58.0
Tin-rich solders are widely applied in the electronic industry in the majority of modern printed circuit boards (PCBs). Because the use of lead-tin solders has been banned in the European Union since 2006, the problem of the bridging of adjacent conductors due to tin whisker growth (limited before by the addition of Pb) has been reborn. In this study tin alloys soldered on glass-epoxy laminate (typically used for PCBs) are considered. Scanning ion microscopy with Focused Ion Beam (FIB) system and energy-dispersive X-ray spectroscopy (EDXS) were used to determine correlations between spatial non-uniformities of the glass-epoxy laminate, the distribution of intermetallic compounds and whisker growth.
Aluminum PCB & Metal Core PCB & LED PCB Circuit board Aluminium PCB are metal-based, copper-clad laminates with a good heat dissipation function. Usually, Aluminium PCB is refer to LED PCB board, which is the most important part of LED display and l
PCBA V-cut machine F886 automatic v-groove pcb cutting machine Features ▶HMI touch screen control, simple operation, training can be mastered and used. ▶PLC+ servo motor control, stable and reliable performance, higher repeatability. ▶The width of t
SMTnet Express August 22, 2013, Subscribers: 26219, Members: Companies: 13462, Users: 35081 Whisker Growth In Tin Alloys On Glass-Epoxy Laminate Studied By Scanning ION Microscopy and Energy-Dispersive X-Ray Spectroscopy by A. Czerwinski, A
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/ipc7351-mounting-hole-naming-convention-info_topic619_post3051.html
), just a clean hole through the FR4 material. But why? The plated hole drill bit hits copper on every hole. JZsori wrote: My understanding is that it is preferable to have a donut pad for the screw head so that the screw does not crush the epoxy glass material as much as it has a copper pad in between
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. They are up to 10 times as thermally conductive as PCBs made with epoxy glass and incredibly thinner. They don’t require a lot of copper, so you can save money on costs while boosting their effectiveness
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