Technical Library | 2021-06-07 19:06:32.0
The technological growth of the last decades has brought many improvements in daily life, but also concerns on how to deal with electronic waste. Electrical and electronic equipment waste is the fastest-growing rate in the industrialized world. One of the elements of electronic equipment is the printed circuit board (PCB) and almost every electronic equipment has a PCB inside it. While waste PCB (WPCB) recycling may result in the recovery of potentially precious materials and the reuse of some components, it is a challenging task because its composition diversity requires a cautious pre-processing stage to achieve optimal recycling outcomes. Our research focused on proposing a method to evaluate the economic feasibility of recycling integrated circuits (ICs) from WPCB. The proposed method can help decide whether to dismantle a separate WPCB before the physical or mechanical recycling process and consists of estimating the IC area from a WPCB, calculating the IC's weight using surface density, and estimating how much metal can be recovered by recycling those ICs. To estimate the IC area in a WPCB, we used a state-of-the-art object detection deep learning model (YOLO) and the PCB DSLR image dataset to detect the WPCB's ICs. Regarding IC detection, the best result was obtained with the partitioned analysis of each image through a sliding window, thus creating new images of smaller dimensions, reaching 86.77% mAP. As a final result, we estimate that the Deep PCB Dataset has a total of 1079.18 g of ICs, from which it would be possible to recover at least 909.94 g of metals and silicon elements from all WPCBs' ICs. Since there is a high variability in the compositions of WPCBs, it is possible to calculate the gross income for each WPCB and use it as a decision criterion for the type of pre-processing.
Industry News | 2009-08-04 16:55:04.0
Niedernhall, 2009, August 4 – PCB expert Würth Elektronik’s printed pulse resistors achieved the till now claimed impossible high-voltage range of 200,000 V. That has been realised once more by the Würth Elektronik-owned “smart-conductive polymer thick film systems”, outstanding due to a wide variability of resistances.
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Industry News | 2021-03-29 13:51:33.0
Designed for Harsh Environments, Cornell Dubilier's New ALH AC-Rated Filter Capacitors offer 50% Greater Life than Competitive Film Capacitors
Like all other VisionMaster equipment, the M500 uses advanced white light Moiré interferometry to build height data for every pixel in the view. VisionMaster honed this technology for SPI use and is the only manufacturer in the world deploying this
New Equipment | Selective Soldering
SelPot-400 Inline Selective Soldering Module SelPot-400 is a single rail in-line selective soldering machine with an independent control system. It’s equipped with a X/Y/Z servo table and soldering pot, an inline N2 heating system, and has the advan
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AQUANOX® A4241 is an aqueous cleaning solution designed with revolutionary inhibition technology to be effective on the toughest soils while protecting even the most sensitive parts from etch or darkening. AQUANOX® A4241can be used in multi-p
New Equipment | Board Handling - Conveyors
PROMATION’s accumulation conveyors provide a low friction method to transport and accumulate PCBs or pallets on a steel roller chain design. Accumulator may be programmed for: continuous run mode, progressive indexing, or be configured with multiple
Industry Directory | Manufacturer
SMT JUKI spare parts and repair service.CyberOpitcs Laser,Juki,Samsung,Yamaha,DEK,Tenryu,Nozzles,Feeders,PWB,Motors.etc....
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
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