Novel High voltage silicon-on-insulator Device with Composite dielectric buried Layer
A novel silicon-on-insulator (SOI) high voltage device with a composite dielectric buried layer (CD SOI) is proposed in this paper. In the proposed structure, the composite dielectric buried layer consists of Si 3 N 4 dielectric and low-k (relative permittivity) dielectric. The electric field strength in the buried layer is enhanced by the low-k dielectric. The Si 3 N 4 dielectric in the buried layer not only modulates the electric field distribution in the drift region, but also provides a heat conduction path for the SOI layer and alleviates the self-heating effect (SHE). The breakdown voltage (BV) = 362 V for CD SOI is obtained by simulation on a 1 μm SOI layer over 2 μm buried layer, which is enhanced by 26% compared with that of conventional SOI.
Novel Low-$k$ Dielectric Buried-Layer High-Voltage LDMOS on Partial SOI
A high-voltage lateral double diffused metal-oxide-semiconductor transistor on partial silicon on insulator (PSOI) with a buried low-k dielectric (LK PSOI) is proposed. The low-k value enhances the electric field strength in the dielectric (EI). The Si window not only makes the substrate share the breakdown voltage (BV) and modulates the field distribution in the SOI layer but also alleviates the self-heating effect. Compared with those of the conventional PSOI, the EI and BV of LK PSOI with kI = 2 are enhanced by 74% and 19%, respectively.
Comparative Industrial Sociology and the Convergence Hypothesis
Industrial sociology grew spectacularly after World War II, concentrating on three areas: workers' relations with each other, their managers, and their unions; the social organization of the factory; and the impact of technology on social systems extending from the factory to the society. Unable to sus­ tain leadership in all of these areas, industrial sociology shrivelled as other fields invaded its domains. Human relations became the ideological property of the business schools; labor economics maintained its grip on industrial relations; industry-community relations waned as interest in community power soared; industrial organizations were absorbed into the study of com­ plex organizations; occupational sociology maintained research impetus in labor force analysis; and the sociology of the economy dominated the study of industry's institutional relationships. Industrial sociology survived on remnants: worker-machine relationships (job satisfaction, alienation, un­ employment), organizational responses to technological changes. and a bit of working-class ethnology. Enduring interest in technology, however, en­ abled industrial sociology to take part in sociology's expanding interest in comparative studies.