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All published articles 500

Die Attach Assembly Process Tool Advancement

Frederick Ray Gomez, Rennier Rodriguez & Nerie Gomez · Journal of Engineering Research and Reports · 2020

Die attach film (DAF) voids detection is one of the challenges during the introduction of non-conductive adhesives for integrated circuit products affecting production control robustness and detection. In this paper, a specialized tool capable to distinguish and quantify the amou...

Open access Research Article 10.9734/jerr/2020/v10i117031

Laser DAF Cut Augmentation for Thin Wafers

Bryan Christian Bacquian & Frederick Ray Gomez · Journal of Engineering Research and Reports · 2020

The semiconductor industry is becoming more inclined to thinner integrated circuit (IC) packages. Thinner packages with thin wafer or die prefer the die attach film (DAF) technology as the die adhesive material solution. As the wafer goes thinner, it becomes more of a challenge i...

Open access Research Article 10.9734/jerr/2020/v10i117029

Behavior of Foundations on Reinforced Sabkha Soil: A Numerical Study

Lamia Sadek & Khaled M. M. Bahloul · Journal of Engineering Research and Reports · 2020

The aim of this research is to investigate numerically the behavior of strip footings resting on Sabkha soil reinforced using two methods. Firstly, using a layer of compacted sand reinforced with random distributed fibers beneath footing. Secondly, using a layer of compacted sand...

Open access Research Article 10.9734/jerr/2020/v10i117028

Package and Process Design Augmentation of QFN Leadframe Device

Rennier S. Rodriguez, Maiden Grace R. Maming & Frederick Ray I. Gomez · Journal of Engineering Research and Reports · 2020

Innovations and breakthroughs either through process, equipment or material is known in semiconductor industries as a positive option in overcoming the existing limitations and assembly handicaps. This presentation discusses the assembly methodology and packaging design of a quad...

Open access Research Article 10.9734/jerr/2019/v9i417026

Spruce Woodmeal for Newsprint Applications: A Handsheet Study

Klaus Dölle & Sandro Zier · Journal of Engineering Research and Reports · 2020

This study shows that spruce woodmeal can be an alternative cellulosic-based wood additive               for newsprint applications. This study used unbleached wood flour produced from Spruce  sawdust, ground and sieved to a particle size of 20-40 µm, 40-70 µm, 70-120 µm and 200-...

Open access Research Article 10.9734/jerr/2020/v10i117027

Application of Cationic Tapioca to Unmodified Pearl Corn Starch – A Papermaking Handsheet Study

Klaus Dölle, Emily Parsons & Jacob Konecny · Journal of Engineering Research and Reports · 2020

An handsheet study was performed to compare the application of unmodified pearl corn starch and cationic tapioca starch on 100% recycled paperboard. To analyze the benefits tensile index, Canadian Standard Freeness, and starch retention was measured. The results found that cation...

Open access Research Article 10.9734/jerr/2019/v9i417024

Performance Evaluation of a Refrigeration System for Fresh Maize Storage

O. O. Caleb, N. G. Olaiya & M. A. Akintunde · Journal of Engineering Research and Reports · 2020

Aims: In this research project, a refrigeration system that will preserve the quality of fresh maize was developed. Study Design:  Design of refrigeration system. Place and Duration of Study: Department of Industrial and Production Engineering, Federal University of Technology, A...

Open access Research Article 10.9734/jerr/2019/v9i417025

Robust Control for a 3DOF Articulated Robotic Manipulator Joint Torque under Uncertainties

Chukwudi Emmanuel Agbaraji, Uchenna Henrietta Udeani, Hyacinth Chibueze Inyiama & Christiana Chikodi Okezie · Journal of Engineering Research and Reports · 2020

This research work emphasizes on design of a robust control for a 3DOF robotic manipulator under uncertainties. The plant model was achieved using the independent joint method and the uncertainty problem was addressed by designing a robust controller using H-Infinity synthesis wh...

Open access Research Article 10.9734/jerr/2019/v9i417022

Wirebond Process Improvement with Enhanced Stand-off Bias Wire Clamp and Top Plate

Jonathan C. Pulido, Frederick Ray I. Gomez & Edwin M. Graycochea Jr. · Journal of Engineering Research and Reports · 2020

New design for a certain issue in semiconductor industry is another way to modify the standard configuration into specified limit or to make a possible solution of the problem.  This paper presents a new modified design for wirebond top plate with a bias platform structure that w...

Open access Research Article 10.9734/jerr/2019/v9i317021

Validation of Calculated Pressure Drop Using Experimental Data with Standard Methods of an Existing Software

Chris M. Wambua, Ogbonna F. Joel, Sunday S. Ikiensikimama & Daniel O. Oyoo · Journal of Engineering Research and Reports · 2020

The aim of this research was to determine the pressure drop along a 450 km long multiproduct pipeline. Empirical formulae and quantitative methods were applied in order to establish pressure drop as an operating parameter. Flow rates used were obtained from the daily operation re...

Open access Research Article 10.9734/jerr/2019/v9i317020

Evaluation the Software Tools Quality to Thesaurus in the Implementation of a Controlled Media Art Vocabulary

Miguel Angel Marzal, Beatriz Ríos & Diego Ferreyra · Journal of Engineering Research and Reports · 2020

In this project, he develops the evaluation of seven thesaurus software tools, in the implementation of a controlled vocabulary, for the CAAC (Collections and Archives of Contemporary Art of the Faculty of Fine Arts of Cuenca, UCLM) in collaboration with UC3M; framed in the "Medi...

Open access Research Article 10.9734/jerr/2019/v9i317019

Hybrid-modelling of Mechanical Properties and Thermo-mechanical Behaviour of Chopped Strand Mat Reinforced Thermoset Composites

Cornelius Ogbodo Anayo Agbo · Journal of Engineering Research and Reports · 2020

The concern of this paper is to develop simple workshop application models for predicting the mechanical properties and the evaluation of the thermo-mechanical behaviour of chopped strand fibre-mat reinforced thermoset composites. A hybrid of empirical and strength of materials a...

Open access Research Article 10.9734/jerr/2019/v9i317015