Hyun-Jin Cho

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A capacitor-less DRAM cell using a thin capacitively-coupled thyristor (TCCT DRAM) is introduced. Experimental results from unit memory cell fabricated in a 130nm SOI logic technology demonstrate Ion/Ioff ratio of 10<sup>7</sup>, non-destructive read; write speed less than 2ns at 125C, and solid retention characteristics. These cell characteristics combined(More)
We report a simple analytical model for surrounding gate MOSFETs including bulk traps. Based on the depletion approximation and the assumption that bulk traps are uniformly distributed inside the bandgap, we solved Poisson's equation in cylindrical coordinates and derived the general solution of potential distribution. Extraction of threshold voltage and(More)
Major advancements in T-RAM cell manufacturability are reported. A fully planar implementation of a T-RAM cell is presented, which is easily integrated into a baseline 130nm SOI CMOS logic technology by adding photo-mask and ion-implantation steps. The cell area of 0.562/spl mu/m/sup 2/ (33F/sup 2/) is four times smaller than conventional 6T-SRAM. A new(More)
BACKGROUND Although septoplasty provides adequate correction of septal deviation, patients are not always satisfied with the procedure. The degree of satisfaction after septal surgery may be affected by individual differences in the perception of one's nasal passage changes and emotional factors. The aim of this study is to identify the predictive factors(More)
A thyristor-based memory cell technology provides SRAM-like performance at 2times to 3times the density of conventional 6T SRAM. The technology is readily embedded into conventional nano-scale CMOS and scales into future SOI and FinFET technologies. A 19mm<sup>2</sup> 0.13mum 9Mb SOI test chip has a 0.562mum<sup>2</sup> cell with a cell-R/W time &lt;2ns
Although the potent environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) has been well known for its immunosuppressive activity, the mechanisms of its action have been difficult to elucidate, partly because of its inability of exerting its effects in vitro. We previously reported that insulin-like growth factor-binding protein-6 (IGFBP-6)(More)
This study aimed to investigate if methamphetamine (MA) abusers exhibit alterations in complexity of the electroencephalogram (EEG) and to determine if these possible alterations are associated with their abuse patterns. EEGs were recorded from 48 former MA-dependent males and 20 age- and sex-matched healthy subjects. Approximate Entropy (ApEn), an(More)
In this retrospective cohort study, we tried to evaluate the compliance of continuous positive airway treatment (CPAP) in the patients with or without previous surgical treatment to OSAS. Retrospective study with prospectively collected data was performed. Eighty-six consecutive OSAS patients who decided to try CPAP were enrolled, and data regarding(More)
BACKGROUND The skin prick test (SPT) is considered a standard test for identification of allergens, but it has some limitations in clinical practice. The multiple allergen simultaneous test (MAST), which measures allergen-specific immunoglobulin E in patients' serum, is a widely used alternative test, but is limited by its relatively low sensitivity and(More)
CONCLUSION Factors that affected prognosis were T stage and extracapsular spread in patients that underwent primary surgery with postoperative radiotherapy for pN2 head and neck carcinoma. OBJECTIVES The purpose of this study was to examine treatment outcomes and define prognostic factors for pN2 head and neck carcinoma. METHODS A total of 209 patients(More)