Browsing by Author "Lin, Kuang-Lun"

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Improving breakdown voltage for 120 V level up shifter by using vertical and lateral assisted depletion layers in 0.35 mu m CMOS technology
(2020-04-01)
Ningaraju, Vivek
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Lin, Horng-Chih
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Chen, Po-An
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Lin, Kuang-Lun
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交大名義發表
A novel isolation structure featuring a vertical assisted depletion layer (VADL) by p-buried layer (PBL) and lateral assisted depletion layer (LADL) by micro-n-well (mu NW) for 120 V level up shifter is proposed. VADL and LADL efficiently prevents the premature breakdown of level shifter by fully depleting nLDMOS drain region and p-isolation (P-ISO) region respectively. By the effect of the electric field modulation, more uniform lateral and vertical electric fields are obtained due to the insertion of the VADL and LADL, which improves the breakdown voltage (BV) and device reliability. The breakdown and reliability mechanisms are investigated in detail by theoretical analysis, TCAD simulations and experimental measurements. The measured results shows, BV of 160 V and almost no HTRB degradation is seen after 168 h of stress. In addition, the new structure is fully compatible with standard 0.35 mu m CMOS technology. Hence, it is not only a performance booster but also a low-cost solution. (C) 2020 The Japan Society of Applied Physics
OGtree: a tool for creating genome trees of prokaryotes based on overlapping genes
(2008-07-01)
Jiang, Li-Wei
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Lin, Kuang-Lun
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Lu, Chin Lung
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生物科技學系
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生物資訊及系統生物研究所
OGtree is a web-based tool for constructing genome trees of prokaryotic species based on a measure of combining overlapping-gene content and overlapping-gene order in their whole genomes. The overlapping genes (OGs) are defined as adjacent genes whose coding sequences overlap partially or entirely. In fact, OGs are ubiquitous in microbial genomes and more conserved between species than non-OGs. Based on these properties, it has been suggested that OGs can serve as better phylogenetic characters than non-OGs for reconstructing the evolutionary relationships among microbial genomes. OGtree takes the accession numbers of prokaryotic genomes as its input. It then downloads their complete genomes from the National Centre for Biotechnology Information and identifies OGs in each genome and their orthologous OGs in other genomes. Next, OGtree computes an overlapping-gene distance between each pair of input genomes based on a combination of their OG content and orthologous OG order. Finally, it utilizes distance-based methods of building tree to reconstruct the genome trees of input prokaryotic genomes according to their pairwise OG distance. OGtree is available online at http://bioalgorithm.life.nctu.edu.tw/OGtree/.