Optimization of deformations and hoop stresses in TSV liners to boost interconnect reliability in electronic appliances

Mary Atieno Juma; Xuliang Zhang; Song Bai He; Ahmed I. A. Abusabah

doi:10.1117/12.2228516

8 December 2015 Optimization of deformations and hoop stresses in TSV liners to boost interconnect reliability in electronic appliances

Mary Atieno Juma, Xuliang Zhang, Song Bai He, Ahmed I. A. Abusabah

Author Affiliations +

Proceedings Volume 9875, Eighth International Conference on Machine Vision (ICMV 2015); 987528 (2015) https://doi.org/10.1117/12.2228516
Event: Eighth International Conference on Machine Vision, 2015, Barcelona, Spain

Abstract

Recently, there has been a lot of research with electronic products because more and different functions are integrated into devices and the final product sizes have to be small to meet the market demand. A lot of research has been done on the (TSVs) Through Silicon Vias. In this paper, through silicon via liners are investigated. The liners: silicon dioxide, polystyrene and polypropylene carbonate are exposed to pressure on their inner surfaces and this yielded hoop stresses within their thickness. Deflections too occurred and this is a proof that deformation really took place. In one of our papers, hoop stresses for the same materials were investigated. The values were a little higher but different for each material used. In this paper, we use global cylindrical, partial cylinder model with different theta in Analysis system 14 to model the through silicon via liners. The values are lower meaning the reliability of the liners have been optimized and boosted. However, silicon dioxide liner had the lowest hoop stress around its circumference and lowest deflection value meaning that it’s still one of the most reliable materials in the manufacture of through silicon via liners in the industry; but overdependence can be avoided if the other liners are used too.

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Mary Atieno Juma, Xuliang Zhang, Song Bai He, and Ahmed I. A. Abusabah "Optimization of deformations and hoop stresses in TSV liners to boost interconnect reliability in electronic appliances", Proc. SPIE 9875, Eighth International Conference on Machine Vision (ICMV 2015), 987528 (8 December 2015); https://doi.org/10.1117/12.2228516

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KEYWORDS

Reliability

Silica

Carbonates

Silicon

Systems modeling

Visual process modeling

Copper

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