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Jonathan Pulido

Publications (4)

Wire Shorting Defect Mitigation on Substrate LGA Device Through Wirebond Capillary Adjustment

Jonathan Pulido, Frederick Ray Gomez & Raymond Albert Narvadez · Journal of Engineering Research and Reports · 2021

Semiconductor packaging technologies are getting more challenging with regards to assembly manufacturing due to several factors such as complex package layout, process and machine capability, and materials compatibility. This paper discusses the wirebonding process difficulty and...

Open access Research Article 10.9734/jerr/2021/v20i917367

Eliminating Frequent Machine Assists through Process Plate Enhancement on Wirebonding Process

Jonathan Pulido, Edwin Graycochea Jr. & Frederick Ray Gomez · Journal of Engineering Research and Reports · 2021

New devices and technologies in the semiconductor industry are getting more challenging to process because of inherent issues especially on quad-flat no-leads (QFN) packaging assembly. This paper is focused on the improvement done for QFN leadframe device to address the major mac...

Open access Research Article 10.9734/jerr/2021/v20i517306

Lead Scratch Resolution through Wirebonding Process Optimization on QFN Packages

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

With the continuous trend of new technologies in semiconductor manufacturing assembly, challenges and issues are unavoidable. This paper presents an improvement done in quad-flat no-leads (QFN) leadframe package to resolve the quantity of unit rejection due to leads scratch under...

Open access Research Article 10.9734/jerr/2020/v15i117136

Elimination of Intermetallic Coverage Over-etching on Aluminum Pad

Jonalyn Jaylo-Sia, Jonathan Pulido & Frederick Ray Gomez · Journal of Engineering Research and Reports · 2021

Intermetallic coverage (IMC) is one of the critical wirebond output responses that is usually checked to ensure the ball to pad integrity. The success of wirebonding relies on the formation of an interfacial intermetallic growth of ball bond to ensure it can withstand reliability...

Open access Research Article 10.9734/jerr/2021/v20i717351