Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 32 for “"LTCC"”.
-
High Frequency LTCC based Planar Transformer
… board (PCB) to low temperature co-fired ceramic (LTCC) substrate which is attempted in this work. The main emphasis in this work is the design and fabrication procedure of LTCC based planar transformer. Ceramic can withstand higher temperature and has a better coefficient of thermal expansion …
-
Eddy current displacement sensor with LTCC technology
… eddy current displacement sensor using the novel LTCC technology was found to match the related measurement conditions such as harsh and high temperature environments, non-magnetic metal blades, etc. Then, according to the structure of the LTCC sensor coil, a set of analytic calculating methods …
-
A Low Temperature Co-fired Ceramic (LTCC) Interposer Based Three-Dimensional Stacked Wire Bondless Power Module
… to develop a low temperature co-fired ceramic (LTCC) interposer-based module-level 3-D wire bondless stacked power module. As part of the dissertation work, the 3-D wire bondless stack is designed, simulated, fabricated and characterized. The 3-D wire bondless stack is realized with two …
-
Design and Assembly of High-Temperature Signal Conditioning System on LTCC with Silicon Carbide CMOS Circuits
… module on a low-temperature co-fired ceramic (LTCC) material. The electronic module would perform signal conditioning of sensor signals (thermocouples) operating under extreme conditions for applications like gas turbines to collect data on the health of the turbine blades during operation so …
-
Integrated design and manufacturing modeling of performance and variability for screen printed resistors in LTCC circuit technology
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
-
Design and analysis of ultra-wide band and millimeter-wave antennas
… using the low temperature co-fired ceramics (LTCC) technology, which gives the possibility of integrating RF circuits and antennas in a single substrate. The configuration of the proposed multilayer UWB LTCC planar antenna fully exploits the three-dimensional (3-D) integration feature of the …
-
High Frequency Magnetic Core Loss Study
… MnZn ferrite materials, three commercial LTCC ferrite materials are characterized for integrated power supply applications. Based on characterized properties of these LTCCs, a group of new LTCC ferrites are fabricated and tested. The new LTCC is fabricated by laminating commercial LTCC …
-
Integrated optoelectronics applications in fiber optic receiver packaging
… the use of low temperature cofireable ceramic (LTCC) tape systems. This new integration technique is applied to a fiber optic receiver system, and focuses on three main tasks. The first task involves the realization, and eventual hybridization, of the receiver electronics, including the …
-
Low-Profile Magnetic Integration for High-Frequency Point-of-Load Converter
… inductor. A Low Temperature Co-fired Ceramic (LTCC) inductor is one of the most promising candidates for 3D integration for high current applications. For the LTCC inductor, besides the non-uniform flux, it also has non-linear permeability, which makes this problem even more complicated. This …
-
Synthesis and Design of Microwave Wideband Filters and Components
… synthesis approach. Coupling structures in LTCC (Low Temperature Co-fired Ceramic) technology that can provide very wide coupling bandwidth and are suitable for the developed synthesis technique are analyzed. Various wideband microwave filters realized in LTCC technology which utilize the …
-
The voltage gated calcium channel β2 protein is required in the heart for control of cell proliferation and heart tube integrity
L-type calcium channels regulate calcium (LTCC) entry into cardiomyocytes. CACNB2 (β2) LTCC auxiliary subunits traffic the pore-forming CACNA subunit to the membrane and modulate channel kinetics. β2 is a Membrane Associated Guanylate Kinase (MAGUK) protein. A major role of MAGUK proteins is to …
-
Low Temperature Co-fired Ceramics Technology for Power Magnetics Integration
… of low-temperature co-fired ceramics (LTCC) technology for power converter magnetics integration. Because magnetic samples must be fabricated with thick conductors for power applications, the conventional LTCC process is modified by cutting trenches in the LTCC tapes where conductive …
-
A Double-Sided Stack Low-Inductance Wire-Bondless SiC Power Module with a Ceramic Interposer
… this module, low temperature co-fired ceramic (LTCC) substrate with vias is utilized as an interposer of which both top and bottom sides are used as die attachment surfaces, the SiC MOSFET bare dies are flip-chip attached on the LTCC interposer using nickel-plated copper balls, high horizontally …
-
Measuring Characteristic Shrinkage Variability Due to Metal Loading Effects in Low Temperature Co-Fired Ceramic Using Image Processing
<p>Low temperature co-fired ceramic (LTCC) has many benefits when it comes to electronic packaging due to the low dielectric loss, reliability in extreme environments, and high breakdown voltage. Though the ceramic has a lot of benefits it is not widely used due to the high cost and complexities …
-
Long-Term Cooling of an SBLOCA: Boron Precipitation in the Core, Boron Dilution in the Steam Generators
… which can challenge long-term core cooling (LTCC) during the small break loss-of-coolant accident (SBLOCA): boron precipitation and boron dilution. The initial consequences of the SBLOCA are mitigated by the emergency safety systems, but the core continues to boil. As boron is less volatile …
-
Packaging of a High Power Density Point of Load Converter
… the use of low temperature co-fired ceramic (LTCC) tapes in the magnetic design to allow a low profile planar inductor to be used as a substrate. LTCC tapes have excellent properties in the 1-10 MHz range that allow for a high permeability, low loss solution. These tapes are co-fired with a …
-
Design and fabrication of an underwater digital signal processor multichip module on low temperature cofired ceramic
… be equipped with a 144 pin grid array (PGA). The LTCC technology selected for this application incorporated DuPont's 951 Green Tape™ and compatible materials and pastes. A mixed metal system using inner silver system and outer surface gold system was used. Harris Corporation's FINESSE MCMTM, a …
-
Contribución a la fabricación de heteroestructuras basadas en nitruros semiconductores para dispositivos más eficientes y baratos
… temperatura (Low Temperature Co-fired Ceramics, LTCC). Estos materiales forman heteroestructuras novedosas y de menor coste, ventajosas frente a las que usan otros substratos más caros y menos adecuados empleados más comúnmente. Se han utilizado diferentes técnicas de análisis para realizar una …
-
High Frequency, High Current 3D Integrated Point-of-Load Module
… elaborated with low temperature co-fire ceramic (LTCC) ferrite, as a substrate where the active components are placed. The lateral flux inductor is proposed to achieve both a low profile and high power density. Generally, the size of the inductor can be continuously shrunk by raising the switching …
-
High Frequency, High Power Density GaN-Based 3D Integrated POL Modules
… 3D technique to integrate the active layer with LTCC magnetic substrate, and the thermal design of a high density module using advanced substrates with improved thermal conductivity. The hardware demonstrators are two 12 V to 1.2 V highly integrated 3D POL modules, the single phase 10 A module …
Page 1 of 2