Statistical Study on Effect of Reactive Ion Etch Towards the Surface Morphology of Aluminum Pad

Abstract. Reactive Ion Etching (RIE) is a major process in the fabrication of semiconductor devices for transferring patterns from masks to semiconductor substrates. Design Of Experiment(DOE) has been used to study the effect of Reactive Ion Etch(RIE) towards surface morphology of aluminum bond pad. Important RIE factors involved in this experimental study are ratio of Tetrafluoromethane (CF4) and Argon gas flow, BIAS, and ICP power. Different combinations of these factors produces different results of surface morphologies which was obtained using Atomic Force Microscopic(AFM). Produced results shows that RMS is an important factor in surface characterization study and DOE offers a better way to optimize the desired outcome

Tilt Detection Of Connectors Using Phase Shifting.

AVI’s are playing important roles in quality inspection in the electronic industry. Most existing AVIs are single overhead camera and are incapable detecting 3D defects. This work presents solving the shortcoming stated using an angle fringe projection

Low-Resolution Image Enhancement Assessment

This study aims to address the problem with unrecognisable subject of low-quality images taken from standard resolution web cameras. These images may contain pixelated details, too much noise, and imbalance brightness and contrast. The authors used three algorithms such as Fuzzy Filter Based on Fuzzy Logic for noise reduction, Image Illumination based on Tone Mapping for uneven illumination and Super Resolution Algorithm to reconstruct the facial features of the low-resolution images. After undergoing experiment, results showed that the most acceptable filtering technique among three algorithms is Filtering Fuzzy Filter Based on Fuzzy Logic, Image Illumination Correction based on Tone Mapping for image illumination and with .60-.15-.15 Face Hallucination Super Resolution Parameter significantly improved the quality of face images taken from a low-resolution web camera. Also, results showed that high-resolution versions of low-resolution inputs significantly helped the reconstruction of facial features of low-resolution inputs. 86.67% improvement was recorded from the test images after the processing of images. Thus, the authors concluded that using the combination significantly improved the unprocessed images

Implementation of a 4-bit Ripple Carry Full Adder of Mirror Design Style Using Synopsys Generic 90nm Technology on a Full-Custom and Semi-Custom Design

The most frequently used component in the datapath block and the speed-limiting element is the adder. Because of this, it is essential to optimize the adder knowing it has a big impact on the overall system performance. In addition to that, adders are a very important subsystem in digital designs, thus, taking care about its performance must be spotted. By manipulating the transistor sizes and circuit topology, the speed can be optimized. A circuit of a CMOS (Complementary metal oxide semiconductor) 4-bit RCA (Ripple Carry Adder) is presented. The proposed adder cell refers to the CMOS adder class executed on CMOS mirror design style that has a smaller area and delay compared with the static adder implementation of the full adder. By simply cascading full-adder blocks, one obtains a Ripple-Carry Adder which perhaps the simplest to implement than that of the other carry adders. Creating the full adder in schematic diagram is a part of Pre-simulation. It incorporates the construction of CMOS transistors and connected through the use of wires. Widths and lengths of the transistors are the crucial parts in designing to place and route connections easily. Layout diagram is the equivalent of the schematic diagram but more on a detailed part and it should be the same as the transistor based circuit. With the aid of the verification processes such as DRC (Design Rule Check) and LVS (Layout versus Schematic), it can give an assurance that both the schematic and layout diagrams are similar and functioning properly

Design and Fabrication of a Prototype Automated Instant Noodle Vending Machine

The project aims to help people especially those who are working in call centres to enjoy eating noodles easily and quickly during their short breaks. The unique feature of this instant noodle vending machine is that it eliminates the use of plastic or paper cups during dispensing. Instead, cooked noodle mix is directly dispensed into the mug provided by the user. The working prototype is flexible to dispense crushed noodles, four different flavours to choose from, and hot water. The dispensing process is sequential which starts from the detection of the cup, crushed noodles dispensing, seasoning dispensing based on the desired flavour, and lastly, the water injection. The researchers were able to design and fabricate the machine based on set standards with an acceptable percent error which are within the tolerance limits. The working prototype was fabricated, and statistical results showed an acceptable range of values

Determination of Sugar Level and the Existence of Magic Sugar in Various Beverages using a Glucose Meter with Four-Point Probe and Electrochemical Impedance

Nowadays, people are being inconsiderate about the healthy lifestyle that might lead us to be unhealthy and be prone to developing tumors in the kidney due to some kind of sugar being used. In order to minimize these problems, the team will raise people awareness. Raising people awareness is not the same as telling them what to do. It is about giving them the knowledge to let them decide for themselves. This is why the team developed a device that can measure the sugar level and determine the existence of magic sugar in various beverages. The device is composed of two major parts: first is the circuit that will measure the impedance of a liquid sample and second, is a four-point probe, which includes a microcontroller that will display and interpret the results. The Four-point probe applies the concept of Wenner method and Electrochemical Impedance. After constructing the device, the team performed its calibration that requires different liquid samples. Based on its gathered data, different graphical representations were formulated and translated into mathematical equations in order to integrate it onto the microcontroller. Whenever the microcontroller encounters an unknown solution, it can determine the sugar level and classify the type of sugar being used