On The Realization of Active MURC Filter wth a Single Pole Amplifier
This paper presents the realization method of active MURC (multilayer uniformly distributed RC line) low pass filter with a single pole amplifier. The proposed circuit configuration consists of 2 MURC and one pole approximation of amplifier. The proposed circuit has a steeper rate of magnitude response at cut off and low sensitivities in the pass band. Experimental results of MATLAB simulations are carried
Active LPF using uniformly distributed RC line
The synthesis method of active low pass filters using uniformly distributed RC line has been published. This paper describes the Low Pass Filter (LPF) using double capacitive layers uniformly distributed RC line (DURC). This LPF circuit configuration with notch characteristics consists of DURC and a positive gain amplifier. The LPF using DURC can be used for anti-aliasing/smoothing filters for signal processors.
New approach to vision-based BGA package inspection
Ball grid array (BGA) techniques have developed very fast due to the advantages of more I/O ports, small size, and so on. In this paper, a vision-based algorithm for BGA package inspection is proposed to accurately estimate center and diameters of solder-balls of BGA packages, so that defects of BGA packages, such as missing or extra balls, oversize or undersize balls, over-height or under-height balls, and pitch can be detected for ensuring the quality of BGA packages.