...Hongyan Shi; Hui Li Purpose The purpose of this paper is to present a clear picture of the challenges of micro drill bit and the developments of novel micro‐drill bits for flexible circuit boards, environmental‐friendly printed circuit boards (PCBs), high aspect ratio drill bit and ultra‐small...

...Xiaohu Zheng; Zhiqiang Liu; Qinglong An; Xibin Wang; Zongwei Xu; Ming Chen Purpose The purpose of this paper is to investigate the cutting mechanism of drilling printed circuit board (PCB) and to optimize the drilling parameters for decreasing burr size and thrust force. Design/methodology...

...Sylvia Ehrler Purpose Today a large variety of printed circuit board (PCB) base materials exists on the market and new ones are added frequently. The base material suppliers, having good original equipment manufacturer (OEM) marketing, usually present the materials in an early development stage...

...Peter Filipp Fuchs; Klaus Fellner; Gerald Pinter Purpose The purpose of this paper is to analyse, in a finite element simulation, the failure of a multilayer printed circuit board (PCB), exposed to an impact load, to better evaluate the reliability and lifetime. Thereby the focus was set...

... flexible to stretchable circuit parts should be as smooth as possible. Examples of how this can be realized are shown in the section on reliability. © Emerald Group Publishing Limited 2012 Stretchable circuits Elastic circuits PCB Printed‐circuit boards Stretchable electronics Circuits...

...Ancău Mircea Purpose The purpose of this paper is to outline the main features concerning the optimization of printed circuit board (PCB) fabrication by improving the manufacturing process productivity. Design/methodology/approach The author explored two different approaches to increase...

... formation Printed‐circuit boards Signal processing Optical information processing Excimer In‐plane mirror Laser ablation Optical interconnects Polymer waveguide Multimode OPCB Optical circuit board The miniaturisation of consumer electronics, dictated by the rise in demand for more...

..., with that of nickel being over four times greater at 7×10⁻⁸ ohm m or even higher for some electroless nickels. © Emerald Group Publishing Limited 2012 Printed‐circuit boards Signal processing Digital technology Copper Nickel Gold Solderable finish Insertion loss PCB signal integrity...

... temperature on‐line by an infrared camera and characterizes PCB drilling processes by measuring the drill bit temperature. © Emerald Group Publishing Limited 2012 Temperature measurement Printed‐circuit boards Micro drill bits Infrared camera Drilling Drill bit temperature is closely...

...Owen Thomas; Martin Wickham; Chris Hunt Purpose The purpose of this paper is to present work on the incorporation of capacitors into printed circuit boards (PCB) as a method to measure moisture content and follow moisture diffusion under ground planes. Design/methodology/approach PCBs were...

... Group Publishing Limited 2012 Electrochemistry Printed‐circuit boards Manufacturing systems Copper Trade effluent Sustainability Chitin Chitosan Effluent Electrochemical recovery The printed circuit board (PCB) manufacturing process uses many hazardous and potentially harmful...

...Michael J. Mullins; David K. Luttrull; Hans Schumacher Purpose Boric acid has been used for many years as a catalyst inhibitor and crosslinking agent to increase the glass transition temperature of epoxy resins for printed circuit boards (PCB), as well as in the glass fibre reinforcement. Recent...

... of complex printed circuit boards (Plate 1).   Plate 1 Boundary-scan market-leader JTAG Technologies launches the JT 2127 series of DIOS DIMM modules When connected to a circuit board, a JT 2127 DIOS test module enhances regular device interconnect tests by exercising the board's connections...

... © Emerald Group Publishing Limited 2006 --> Printed-circuit boards Electronics industry Orbotech releases additional details of $18 million purchase agreement for PCB-AOI equipment Keywords: Printed-circuit boards, Electronics industry Orbotech Ltd have released...

... © Emerald Group Publishing Limited 2006 --> Manufacturing industries Printed-circuit boards Outstanding paper “New materials and build-up constructions for advanced rigid-flex PCB applications” Tarja Rapala-Virtanen and Timo Jokela Aspocomp, Salo, Finland...

... discusses possible root causes for their occurrence. Findings The open trace defects that occurred during printed circuit board (PCB) fabrication should have been observed by the board manufacturer. It appears that the PCB manufacturer did not perform automatic optical inspection (AOI) and electrical...

... system employing epoxy substrate, oxide loss was found to be far less than substrate effects, imaging quality, and foil treatment. Originality/value Electrical engineers and printed circuit board (PCB) designers strive to focus their efforts on improving the PCB processes leading to maximum conductor...

...Li‐Cheng Shen; Wei‐Chung Lo; Hsiang‐Hung Chang; Huan‐Chun Fu; Yuan‐Chang Lee; Yu‐Chih Chen; Shu‐Ming Chang; Wun‐Yan Chen; Ming‐Chieh Chou Purpose To characterise the optical performance of organic multi‐mode optical waveguides integrated with printed circuit board (PCB) and to demonstrate...

... is applicable to soldering for both leaded solder and lead‐free solders. The surface is also wire bondable. Originality/value The paper offers details of a new alternative surface finish for use in printed circuit board fabrication as well as in packaging applications. The paper shows the electroless...

... degradation that are intrinsic factors in PCB construction (Figure 2). © Emerald Group Publishing Limited 2005 Printed‐circuit boards Electronics industry Since the inception and introduction of the PCB more than 60 years ago, the design and manufacture of circuit assemblies have gone...