Download or read book Gravure s lective et sans dommage du silicium en mode triode synchronis assist e d un champ magn tique written by Bernard Bouyer and published by . This book was released on 1990 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE DECRIT LA MISE EN UVRE D'UN REACTEUR DE GRAVURE ET DE PROCEDES ASSOCIES, APPLIQUES AUX DISPOSITIFS A TRANSFERT DE CHARGE (D.T.C.) APRES UNE ANALYSE TRES SCHEMATIQUE DES PARAMETRES DE GRAVURE, NOUS AVONS DEVELOPPE UN DISPOSITIF EXPERIMENTAL UTILISANT DEUX ELECTRODES EXCITEES EN RADIO-FREQUENCE ET UNE BOBINE MAGNETIQUE. UN SYSTEME ORIGINAL DE SYNCHRONISATION DES SIGNAUX APPLIQUES AUX DEUX ELECTRODES ACTIVES A PERMIS DE CONTROLER, D'UNE FACON INDEPENDANTE, LA TENSION D'AUTO-POLARISATION SUR L'ELECTRODE BASSE. UNE CATHODE ORIGINALE A CHAMP MAGNETIQUE DYNAMIQUE COMPENSE A PERMIS DE DENSIFIER LA DECHARGE. NOUS AVONS EVALUE LES MECANISMES ET LES PERFORMANCES DE GRAVURE DU REACTEUR AVEC DES GAZ CHLORES ET FLUORES. DANS LE CAS D'UNE FORTE TOPOLOGIE, L'ANISOTROPIE DE GRAVURE LAISSE DES RESIDUS DE SILICIUM AU PIED DES MOTIFS APPELES ESPACEUR. LEUR ELIMINATION A NECESSITE LA MISE EN UVRE D'UN TROISIEME GAZ DE GRAVURE L'ACIDE BROMHYDRIQUE HBR QUI, GRACE A SES PROPRIETES, PERMET A LA FOIS DE GRAVER LES ESPACEURS ET DE PROTEGER LES FLANCS DES MOTIFS. L'UTILISATION JUDICIEUSE DE CES TROIS GAZ A PERMIS DE SATISFAIRE AU CAHIER DES CHARGES DE LA GRAVURE DES GRILLES C.C.D. LES DEFAUTS INDUITS PAR LA GRAVURE PLASMA ONT ETE CARACTERISES A PARTIR DES METHODES D'ANALYSE DU SILICIUM EN VOLUME (C-V, Q#B#D). LA NATURE DES PASSIVATIONS ONT ETE DETERMINEES PAR DES ANALYSES DE SURFACE (XPS, AUGER). L'UTILISATION DU REACTEUR AVEC LES AMELIORATIONS APPORTEES: SYNCHRONISATION DES GENERATEURS, CHAMP MAGNETIQUE DYNAMIQUE ET L'ASSOCIATION D'UNE CHIMIE APPROPRIEE ONT PERMIS DE REALISER DES GRAVURES DE GRILLE D.T.C. AVEC D'EXCELLENTES PERFORMANCES ET DES TAUX DE DEFAUTS REDUITS. CES RESULTATS DEVRAIENT PERMETTRE D'AMELIORER L'EFFICACITE DE TRANSFERT DES CIRCUITS D.T.C.

Download or read book Historical Dictionary of Iran written by John Henry Lorentz and published by Historical Dictionaries of Asia, Oceania, and the Middle East. This book was released on 2007 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of specific events, movements, people, political and social groups, places, trends, and chronology. Allows for considerable exploration of a number of historical and contemporary topics and issues. The modern period, defined as 1800-present, is covered extensively.

Download or read book Historical Dictionary of Pakistan written by Shahid Javed Burki and published by . This book was released on 1999 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pakistan is unlike most other countries in the emerging world. It is one of the two nations – the other being the state of Israel – founded on the basis of religion. Although it was created to provide a homeland for the Muslim community of British India, in its original form it was able to accommodate only about half of the people of Islamic faith who lived in the subcontinent. Pakistan’s birth in 1947 resulted in one of the largest movements of people in human history when some 14 million people left their homes, with 8 million Muslims leaving India for what is now Pakistan and 6 million Hindus and Sikhs moving in the opposite direction. This was the first large-scale incidence of ethnic cleansing the world was to witness. --