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R. Rodriguez

Publications (13)

Die Crack Resolution through Pick-up Process Optimization for BGA Package

R. Rodriguez, E. Graycochea Jr., F. R. Gomez & E. Manalo · Journal of Engineering Research and Reports · 2021

With the new devices and new technologies in the semiconductor industry are getting more challenging to process because issues are unavoidable especially on thin dies. The paper is focused on the improvement done on a ball grid array (BGA) substrate package assembly to address th...

Open access Research Article 10.9734/jerr/2021/v20i317277

Implementing Single-Row Process Plate Design for Pre-Encapsulated Lead Frame

R. Rodriguez, F. R. Gomez & J. Pulido · Journal of Engineering Research and Reports · 2020

This paper presents the application of an innovative design of wirebond process plate during wirebonding process of thin semiconductor carrier such as the pre-encapsulated leadframe. The implementation of the specialized process plate aims to improve the conventional method of wi...

Open access Research Article 10.9734/jerr/2020/v16i217162

A Study of Dispense Needle for Die Attach Voids Mitigation

R. Rodriguez, B. C. Bacquian, F. R. Gomez & E. Graycochea Jr. · Journal of Engineering Research and Reports · 2020

The need of data storage devices and new technologies continues to grow with more robust and stable functioning capability. With that, improvement and utilization never stop for a seamless output. One device that is currently on new product introduction is a quad-flat no-leads (Q...

Open access Research Article 10.9734/jerr/2020/v14i117114

Implementation of Pads Re-layout for QFN Multi-row Breakthrough

R. Rodriguez, F. R. Gomez & M. G. Maming · Journal of Engineering Research and Reports · 2020

An alternative design of Quad-Flat No-lead (QFN) leadframe capable with three or more arrays of lead is discussed and presented on this paper. The leadframe design is integrated with connecting bars that can be routed and bonded with wires to decrease the wire span and create a m...

Open access Research Article 10.9734/jerr/2020/v11i217056

Epoxy Fillet Height Study of Tapeless QFN Leadframe Package on Different Diebonders

E. Graycochea Jr., R. Rodriguez & F. R. Gomez · Journal of Engineering Research and Reports · 2021

The paper focused on the evaluation of quad-flat no-leads (QFN) device in tapeless leadframe technology on different diebonder platforms to achieve an acceptable fillet height performance. The study was narrowed down into two main machines with the objective of attaining a fillet...

Open access Research Article 10.9734/jerr/2021/v20i817353

Mitigating Wire Short Defect on LGA Device through Substrate Design Optimization

J. Pulido, R. Rodriguez, F. R. Gomez & E. Graycochea Jr. · Journal of Engineering Research and Reports · 2021

During new product development of a substrate land grid array (LGA) device, issues were encountered at wirebonding process due to design constraints. This paper is focused on addressing the wire-to-wire short defect during wirebonding process of the first bond. Wirebond process o...

Open access Research Article 10.9734/jerr/2021/v20i417297

Multi-Hole Process Plate Modification for Chip on Lead Device at Die Attach Process

E. Graycochea Jr., R. Rodriguez, F. R. Gomez & B. C. Bacquian · Journal of Engineering Research and Reports · 2020

The paper focused on the improvement done in chip on lead (COL) leadframe package assembly manufacturing to address the leadframe bouncing effect during die attach process. A new and enhanced process plate is designed with multi-hole configuration to provide a strong vacuum under...

Open access Research Article 10.9734/jerr/2020/v18i317208

A Study of Die Shear Test Performance on Different Diebond Machine Platforms

B. C. Bacquian, R. Rodriguez, N. Gomez, E. Graycochea Jr. & F. R. Gomez · Journal of Engineering Research and Reports · 2020

The paper focused on the evaluation of quad-flat no-leads single-row (QFN-sr) leadframe package for die shear test performance on different diebond machine platforms. Die shear test determines the adhesion strength on the interface between the silicon die and the die attach glue...

Open access Research Article 10.9734/jerr/2020/v16i317169

Interconnect Technique for Tight Clearance in Stacked-die Package

F. R. Gomez, R. Rodriguez & N. Gomez · Journal of Engineering Research and Reports · 2020

The paper focused in addressing wire-related assembly issues due to tight clearances in the semiconductor package design. Package design characterization was done considering the assembly design rules and the advanced rules, resulting to the integration of an interposer in the pa...

Open access Research Article 10.9734/jerr/2020/v11i217054

Process Optimization to Eliminate Automatic Alignment Failures on the Scalable Device

A. Sumagpang Jr., F. R. Gomez & R. Rodriguez · Journal of Engineering Research and Reports · 2020

The paper focused in addressing the auto align defect at in-strip testing of a semiconductor scalable device in a leadframe technology. Pareto diagram and potential risk analysis were completed to identify the top reject contributors and eventually come-up with the robust solutio...

Open access Research Article 10.9734/jerr/2020/v18i117197

Tool Setup Improvement for Package Scratch Mitigation at End-of-Line Process

A. Sumagpang Jr., F. R. Gomez & R. Rodriguez · Journal of Engineering Research and Reports · 2020

With new and continuous semiconductor technology trends, challenges in assembly manufacturing are inevitable. This paper focused on the elimination of assembly defects particularly package chip-out and scratch at the singulation end-of-line (EOL) process of a semiconductor device...

Open access Research Article 10.9734/jerr/2020/v12i317079

Die Attach Process Analysis of Enhanced Stand-off Stopper on Tapeless Leadframe

E. Graycochea Jr., F. Gomez, R. Rodriguez & B. Bacquian · Journal of Engineering Research and Reports · 2020

Improvement on the process and design is often a reliable way to resolve a problem especially in semiconductor industry. This paper presents a leadframe or semiconductor carrier merged with a stand-off design structure that will maintain a consistent bond line thickness (BLT) cri...

Open access Research Article 10.9734/jerr/2020/v11i117051