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Maria Virginia S. Buera

Publications (4)

Pattern Recognition System Program Advancement to Compensate Strip Expansion on 1-Map Strips

Maria Virginia S. Buera, Mariane A. Mendoza & Frederick Ray I. Gomez · Journal of Engineering Research and Reports · 2021

Package singulation process is where the whole strip was sheared to produce individual units. Existing singulation program for 1-map strip have only six (6) pattern recognition system (PRS) points along the whole strip with 240 mm length. Considering the length of the strip, it i...

Open access Research Article 10.9734/jerr/2021/v20i717349

Proactive Verification of Strip Y-Index to Mitigate Gross Misaligned Cut due to Mismatched Unit Pitching

Maria Virginia S. Buera, Mariane A. Mendoza & Frederick Ray I. Gomez · Journal of Engineering Research and Reports · 2021

Shopfloor practices that when the first cut line was aligned with the hairline, actual blade cut, and saw street of the strip, the succeeding cut lines will automatically follow with the same alignment. Considering various factors that affect the condition of the strip, it was re...

Open access Research Article 10.9734/jerr/2021/v20i717337

Understanding Jig Alignment Error Occurrences for Substrate 1-Map Strips

Mariane A. Mendoza, Maria Virginia S. Buera, Frederick Ray I. Gomez & Allen Jay D. Kumawit · Journal of Engineering Research and Reports · 2021

Singulation is a process in a semiconductor industry where high dense strips were singulated into single units. Jig saw singulation was the updated technology where strips were seated and vacuumed on a rubber nest jig during singulation. Jig saw singulation is also practical for...

Open access Research Article 10.9734/jerr/2021/v20i917380

Different Vacuum Pad Design Effects with Z-Picker Assembly

Allen Jay D. Kumawit, Maria Virginia S. Buera, Mariane A. Mendoza & Frederick Ray I. Gomez · Journal of Engineering Research and Reports · 2021

After singulation process where the strips are being cut into single units, unit tray loading comes next. Unit tray loading is the process where the singulated units will be picked up from the table and then place it in a tray pocket. Z-picker assembly executes the pick and placi...

Open access Research Article 10.9734/jerr/2021/v20i817364