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Visar resultat 1 - 5 av 11 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Design and Characterization of MMIC IF VGA and Small Signal CMOS Millimeter Wave Amplifiers

    Författare :M. Anowar Masud; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BCB; CMOS; GaAs; LNA; VGA; MMIC; HEMT;

    Sammanfattning : The main aim of this work is to demonstrate the easibility of designing and characterizing monolithic microwave integrated circuit (MMIC) variable gain amplifiers (VGA) and small signal amplifiers in III-V (GaAs) and 90 nm CMOS technologies, respectively. The VGA is studied at the IFfrequency of 2. LÄS MER

  3. 2. Adhesive Wafer Bonding for Microelectronic and Microelectromechanical Systems

    Författare :Niklaus Frank; KTH; []
    Nyckelord :adhesive; wafer; bonding; low temperature; CMOS compatible; selective; local; polymer; thermoplastic; thermosetting; intermediate layer; coating; benzocyclobutene; BCB; photoresist; epoxy; glue; wafer-level; sacrificial; etching; grinding; etch-stop;

    Sammanfattning : Semiconductor wafer bonding has been a subject of interestfor many years and a wide variety of wafer bonding techniqueshave been reported in literature. In adhesive wafer bondingorganic and inorganic adhesives are used as intermediatebonding material. LÄS MER

  4. 3. Assembly of microsystems for optical and fluidic applications

    Författare :Sjoerd Haasl; Göran Stemme; Richard Syms; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; microsystem technology; micromachining; assembly; active alignment; BCB; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : This thesis addresses assembly issues encountered in optical and fluidic microsystem applications. In optics, the first subject concerns the active alignment of components in optical fibersystems. LÄS MER

  5. 4. Fabrication and characterization of HFET based MMICs for millimeterwave applications

    Författare :Christer Karlsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; InAs; microwave; millimeterwave; resistive mixer; BCB; balanced doubler; HFET; III-V semiconductor; MMIC;

    Sammanfattning : .... LÄS MER

  7. 5. Integrated Variable-Gain and CMOS Millimeter-Wave Amplifiers

    Författare :Mohammad Anowar Masud; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LNA; MMIC; FinFET; CMOS; HEMT; GaAs; WLP; VGA; BCB;

    Sammanfattning : Variable Gain Amplifier finds extensive use in the high frequency demonstrators specially those operating in the millimeter-wave regions and beyond where the incoming RF signal level can have wide variations. To maintain a constant signal level an IF VGA has been designed that can offer a dynamic variation of gain as much as 45 dB together with a high maximum gain and a low noise figure. LÄS MER