Circuit World: Volume 42 Issue 4

Preparation and performances of coated and aluminous entry boards with water-soluble resins for PCB drilling

Hu Zhou, Bin Yu, Ning Li, Jie Zhou, Xiaoyang Luo, Jialin Tang, Xianzhi Qin

This paper aims to provide a new drilling entry board for printed circuit board (PCB) process, superior in heat dissipation, lubrication, water solubility and hole location…

The tool-wear characteristics of flexible printed circuit board micro-drilling and its influence on micro-hole quality

Lijuan Zheng, Chengyong Wang, Xin Zhang, Xin Huang, Yuexian Song, Kefeng Wang, Lunqiang Zhang

Micro-holes are drilled and plated in flexible printed circuit boards (FPCs) for connecting circuits from different layers. More holes, with diameters smaller than 0.3 mm, are…

Pad printing of polymeric silver ink conductors on thermoplastic foils

Teija Laine-Ma, Pekka Ruuskanen, Satu Pasanen, Mikko Karttunen

The aim of this study was to evaluate the feasibility of pad printing for producing electrical conductors and to define the factors affecting the print quality of polymeric silver…

An improved circuit for modulator based on nanostructured memristor

Shao-Fu Wang, D.Z. Xu

This paper aims to propose the modeling of nanostructured memristor, and the circuit of amplitude modulator was designed and analyzed with memristor. The simulation results show…

An investigation of tin whisker growth over a 32-year period

Mark Andrew Ashworth, Barrie Dunn

This paper aims to present the results of a 32-year-old laboratory study of whisker growth from tin electrodeposits that was originally undertaken to gain an increased…

The gyrator for transforming nano memristor into meminductor

Shao-Fu Wang

To solve the problem of meminductor in circuit design, this paper aims to describe a synthesis method and the mechanism in terms of constitutive relation of the gyrator for…

Analysis of electrical discontinuity problem in MLB using Ishikawa model

G. Jayaprasad, P.P. Dhanlakshmi, S. Hemachandran

The purpose of this study/paper is regarding analysis of electrical discontinuity in penultimate layer of a few batches of Multilayer Boards (MLB) fabricated and supplied by a…