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Manufacturing of GaAs MMICs for Wireless Communications Applications
Wu-Jing Ho,Joe Liu,Hengchang Chou,Chan Shin Wu,Tsung Chi Tsai,Wei Der Chang,Frank Chou,Yu-Chi Wang 대한전자공학회 2006 Journal of semiconductor technology and science Vol.6 No.3
Two major processing technologies of GaAs HBT and pHEMT have been released in production at Win Semiconductors corp. to address the strong demands of power amplifiers and switches for both handset and WLAN communications markets. Excellent performance with low processing cost and die shrinkage features is reported from the manufactured MMICs. With the stringent tighter manufacturing quality control WIN has successfully become one of the major pure open foundry house to serve the communication industries. The advancing of both technologies to include E/D-pHEMTs and BiHEMTs likes for multifunctional integration of PA, LNA, switch and logics is also highlighted.
Manufacturing of GaAs MMICs for Wireless Communications Applications
Ho, Wu-Jing,Liu, Joe,Chou, Hengchang,Wu, Chan Shin,Tsai, Tsung Chi,Chang, Wei Der,Chou, Frank,Wang, Yu-Chi The Institute of Electronics and Information Engin 2006 Journal of semiconductor technology and science Vol.6 No.3
Two major processing technologies of GaAs HBT and pHEMT have been released in production at Win Semiconductors corp. to address the strong demands of power amplifiers and switches for both handset and WLAN communications markets. Excellent performance with low processing cost and die shrinkage features is reported from the manufactured MMICs. With the stringent tighter manufacturing quality control WIN has successfully become one of the major pure open foundry house to serve the communication industries. The advancing of both technologies to include E/D-pHEMTs and BiHEMTs likes for multifunctional integration of PA, LNA, switch and logics is also highlighted.
Dian-Jeng Li,Joh-Jong Huang,Su-Ting Hsu,Kuan-Ying Hsieh,Guei-Ging Lin,Pei-Jhen Wu,Chin-Lien Liu,Hui-Ching Wu,Frank Huang-Chih Chou 대한신경정신의학회 2024 PSYCHIATRY INVESTIGATION Vol.21 No.8
Objective Healthcare workers (HCWs) suffered from a heavy mental health burden during the coronavirus disease-2019 (COVID-19) pandemic. We aimed to explore the differences in sleep disturbance in three waves of the COVID-19 pandemic in Taiwan among HCWs. Moreover, factors associated with sleep disturbances in the third wave were investigated. Methods This study, with three waves of cross-sectional surveys, recruited first-line and second-line HCWs. The level of sleep distur-bance and related demographic variables were collected through self-report questionnaires. Differences in sleep disturbance across the three waves were compared with analysis of variance. Factors associated with the level of sleep disturbance were identified using univari-ate linear regression and further used for multivariate stepwise and bootstrap linear regression to identify the independent predictors. Results In total, 711, 560, and 747 HCWs were included in the first, second, and third waves, respectively. For first-line HCWs, sleep disturbance was significantly higher in the third wave than in the first wave. The level of sleep disturbance gradually increased across the three waves for all HCWs. In addition, sleep disturbance was associated with depression, posttraumatic stress disorder (PTSD) symp-toms, anxiety about COVID-19, vaccine mistrust, and poorer physical and mental health among first-line HCWs. Among second-line HCWs, sleep disturbance was associated with younger age, depression, PTSD symptoms, lower preference for natural immunity, and poorer physical health. Conclusion The current study identified an increase in sleep disturbance and several predictors among HCWs. Further investigation is warranted to extend the application and generalizability of the current study.