scholarly journals Process Optimization to Eliminate Automatic Alignment Failures on the Scalable Device

Author(s):  
A. Sumagpang Jr. ◽  
F. R. Gomez ◽  
R. Rodriguez

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 solution. Reverse flow was employed to eliminate the alignment issues. The reverse flow, which is testing prior singulation process, eventually resolved the auto align and other singulation related defects as testing is done on a strip form. Ultimately, the error-proofing or Poka-Yoke approach by reverse flow lead to the elimination of auto align failures at final test. For future   works, the parameters and learnings could be used on devices with similar assembly defect occurrence.

Author(s):  
A. Sumagpang Jr. ◽  
F. R. Gomez

The paper focused in addressing the package voids defect of a semiconductor device utilizing an extremely small leadframe technology. Potential risk analysis and pareto diagram were completed to identify the top reject contributors and eventually come-up with the robust solution. A comprehensive design of experiments (DOE) was completed and solution validation was performed to formulate the effective corrective actions. Results revealed that package voids were addressed by optimizing the molding process focusing on the molding temperature and curing time. A significant improvement of 95 % for package voids reduction was achieved. For future works, the parameters and learnings could be used on devices with similar configuration.


Author(s):  
A. Sumagpang Jr. ◽  
F. R. Gomez ◽  
B. C. Bacquian

The paper focused in addressing the silicon die chippings defect at the wafer sawing process of an extremely small semiconductor package. In-depth potential risk analysis and Pareto diagram were done to identify the top reject contributors and eventually resolve the issue. A comprehensive design of experiment (DOE) was done and validation of the solution was employed to formulate the effective corrective actions. Results revealed that die chippings were addressed by optimizing the wafer sawing process through enabling the dressing, pre-cut and step-cutting modes. Ultimately, an improvement of 95% for die chippings reduction was achieved.


2000 ◽  
Vol 24 (2-7) ◽  
pp. 721-727 ◽  
Author(s):  
Akio Shindo ◽  
Hiroshi Yamazaki ◽  
Akifumi Toki ◽  
Reiko Maeshima ◽  
Ichiro Koshijima ◽  
...  

Author(s):  
Lidia Hrncevic

The petroleum industry holds long- and short-term environmental risks. Besides production fluids, all petroleum industry activities involve either use of fluids, which contain abundant substances, or waste generation, both associated with potential risk to the environment. The principal environmental risk associated with the petroleum industry is the risk of fluid spill/emission to the environment. Although in recent decades the risk analysis methodologies have matured, to date there is still no universally accepted methodology for environmental risk assessment in petroleum industry. In this chapter, the petroleum industry’s environmental incident history and statistics are presented. The environmental impact of the petroleum industry’s activities, its extent, and trends are analyzed. The overview of pollution sources with associated environmental risk is given along with the analysis of the causes and consequences of incidents in the petroleum industry.


2021 ◽  
Vol 680 (1) ◽  
pp. 012070
Author(s):  
Yang Wang ◽  
Wenqian Wu ◽  
Zichao Guo ◽  
Qiuhan Lin ◽  
Liping Chen ◽  
...  

Author(s):  
Lidia Hrncevic

The petroleum industry holds long- and short-term environmental risks. Besides production fluids, all petroleum industry activities involve either use of fluids, which contain abundant substances, or waste generation, both associated with potential risk to the environment. The principal environmental risk associated with the petroleum industry is the risk of fluid spill/emission to the environment. Although in recent decades the risk analysis methodologies have matured, to date there is still no universally accepted methodology for environmental risk assessment in petroleum industry. In this chapter, the petroleum industry's environmental incident history and statistics are presented. The environmental impact of the petroleum industry's activities, its extent, and trends are analyzed. The overview of pollution sources with associated environmental risk is given along with the analysis of the causes and consequences of incidents in the petroleum industry.


Food Control ◽  
2016 ◽  
Vol 66 ◽  
pp. 300-305 ◽  
Author(s):  
Elena Madrid ◽  
Florimar Gil ◽  
María García ◽  
Ángela L. Debenedetti ◽  
María Trelis ◽  
...  

2020 ◽  
Vol 713 ◽  
pp. 136583 ◽  
Author(s):  
Hao Wang ◽  
Ze-hua Liu ◽  
Zhao Tang ◽  
Jun Zhang ◽  
Hua Yin ◽  
...  

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