Circuit World: Volume 40 Issue 4

The automatic detection system of flexible printed circuit board’s defect in computer equipment based on picture processing and pattern recognition

Ke Ren, Yinghan Hong

– The purpose of this paper is to make the test of flexible printed circuit (FPC) board be more efficient and accurate.

Preparation of electronic-grade CuO for copper electrodeposition of printed circuit boards

Jianhui Lin, Chong Wang, Yuanming Chen, Wei He, Dingjun Xiao, Ze Tan

The purpose of this paper was to present a simple and convenient technology to produce the electronic-grade CuO. The prepared electronic-grade CuO fully meets the demands of…

Direct printing and assembly of FM radio at the user end via liquid metal printer

Jun Yang, Jing Liu

This paper aims to demonstrate the practicability of the liquid metal printer, developed in the authors’ laboratory, in the direct manufacture and assembly of circuit boards at…

Swift perspective shape matching algorithm based on Phong’s model for FPC stiffener bonding systems

Ye Su, Ye Yutang, Xie Yu, Yi Maoli, Zhang Jing, Luo Ying, Du Chunlei

– This paper aims to solve the issue of target positioning in auto stiffener bonder (ASB) systems for flexible printed circuits.

Electroformed conductor patterns in electronics manufacturing

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

The aim of this study was to test and survey a circuitry transfer technique where conductor patterns are electroformed on carrier substrates and thereafter the electroformed…