The Experts below are selected from a list of 1578 Experts worldwide ranked by ideXlab platform

Ronald Van Olmen - One of the best experts on this subject based on the ideXlab platform.

Taho Yang - One of the best experts on this subject based on the ideXlab platform.

  • Robust design for a multilayer ceramic capacitor Screen-Printing Process case study
    Journal of Engineering Design, 2004
    Co-Authors: Taho Yang, Ronald Van Olmen
    Abstract:

    Multilayer ceramic capacitors (MLCCs) are widely used in consumer electronics. The compact design of the MLCC in high-speed printed circuit board assembly makes it the major form of capacitor design. Yield improvement is the most challenging part of MLCC manufacturing in view of its Processing complexity, particularly in the paste Screen-Printing Process. Industrial reports have shown that the yield loss for fine-pitch MLCCs could be as high as 40% and Screen-Printing quality problems could represent about 80% of yield loss. Thus, paste Screen-Printing quality is critical if an MLCC firm is to gain a competitive edge. This paper reports on the use of the Taguchi method to improve Screen-Printing quality for fine-pitch MLCCs. Empirical results demonstrate a significant improvement in printing quality and point to a successful application of this Process.

  • Robust design for a multilayer ceramic capacitor Screen-Printing Process case study
    Journal of Engineering Design, 2004
    Co-Authors: Taho Yang, Ronald Van Olmen
    Abstract:

    Multilayer ceramic capacitors (MLCCs) are widely used in consumer electronics. The compact design of the MLCC in high-speed printed circuit board assembly makes it the major form of capacitor design. Yield improvement is the most

N.m. White - One of the best experts on this subject based on the ideXlab platform.

  • Thick-film PZT-metallic triple beam resonator
    Electronics Letters, 2003
    Co-Authors: B.e. Jones, R.t. Rakowski, M.j. Tudor, S.p. Beeby, N.m. White
    Abstract:

    A metallic triple-beam resonator with thick-film piezoelectric elements to drive and detect the vibrations is presented. The resonator substrate was fabricated by a double-sided photochemical etching technique and the thick-film piezoelectric elements were deposited by a standard Screen-Printing Process. The resonator, 15.5mm long and 7mm wide, has a favoured mode at 6.2 kHz with a Q-factor of 3100.

  • Thick-film PZT-metallic triple beam resonator
    Electronics Letters, 2003
    Co-Authors: B.e. Jones, R.t. Rakowski, M.j. Tudor, S.p. Beeby, N.m. White
    Abstract:

    A metallic triple-beam resonator with thick-film piezoelectric elements to drive and detect vibrations is presented. The resonator substrate was fabricated by a double-sided photochemical-etching technique and the thick-film piezoelectric elements were deposited by a standard Screen-Printing Process. The resonator, 15.5 mm long and 7 mm wide, has a favoured mode at 6.2 kHz with a Q-factor of 3100.

B.e. Jones - One of the best experts on this subject based on the ideXlab platform.

  • Thick-film PZT-metallic triple beam resonator
    Electronics Letters, 2003
    Co-Authors: B.e. Jones, R.t. Rakowski, M.j. Tudor, S.p. Beeby, N.m. White
    Abstract:

    A metallic triple-beam resonator with thick-film piezoelectric elements to drive and detect the vibrations is presented. The resonator substrate was fabricated by a double-sided photochemical etching technique and the thick-film piezoelectric elements were deposited by a standard Screen-Printing Process. The resonator, 15.5mm long and 7mm wide, has a favoured mode at 6.2 kHz with a Q-factor of 3100.

  • Thick-film PZT-metallic triple beam resonator
    Electronics Letters, 2003
    Co-Authors: B.e. Jones, R.t. Rakowski, M.j. Tudor, S.p. Beeby, N.m. White
    Abstract:

    A metallic triple-beam resonator with thick-film piezoelectric elements to drive and detect vibrations is presented. The resonator substrate was fabricated by a double-sided photochemical-etching technique and the thick-film piezoelectric elements were deposited by a standard Screen-Printing Process. The resonator, 15.5 mm long and 7 mm wide, has a favoured mode at 6.2 kHz with a Q-factor of 3100.

Peter Ryser - One of the best experts on this subject based on the ideXlab platform.

  • Fabrication of polymer-based micro devices: formulation and study of the paste
    Procedia Engineering, 2020
    Co-Authors: Nathalie Serra, Thomas Maeder, Olivier Gentsch, Peter Ryser
    Abstract:

    We investigate in the present work the fabrication of polymer-based micro-fluidic and micro-mechanical devices using sacrificial, resistive/conductive pastes, through a Screen-Printing Process. An organic sacrificial paste is first screen-printed onto a substrate, the future opening in the structure existing where the paste lies (channels, cavities...). Then, a resistive paste based on thermosetting polymer resin and graphite is deposited onto the previous layer. Finally, the sacrificial paste is removed at 150°C by sublimation through the composite, leaving therefore the desired pattern. For such applications, the key is naturally the formulation of the pastes. On a previous work, we already proposed a potential formulation for the organic sacrificial paste, based on polyols [1]. In the present paper, we will focus on the formulation of the cover paste, which must be adapted rheologically for the Screen-Printing Process, but also chemically due to strong potential interactions between the sacrificial layer and the over-layer. Finally, micro-devices such as simple fluidic channels and suspended structures were produced and shown to be operational, demonstrating the high potential of our Process. Keywords:organic sacrificial layers; silicone resins; Screen-Printing; thick films

  • Fabrication of Polymer-Based Micro Devices: Formulation and Study of the Paste
    Sensors and Actuators A-physical, 2011
    Co-Authors: Nathalie Serra, Thomas Maeder, Olivier Gentsch, Peter Ryser
    Abstract:

    We investigate in the present work the fabrication of polymer-based micro-fluidic and micro-mechanical devices using sacrificial, resistive/conductive pastes, through a Screen-Printing Process. An organic sacrificial paste is first screen-printed onto a substrate, the future opening in the structure existing where the paste lies (channels, cavities...). Then, a resistive paste based on thermosetting polymer resin and graphite is deposited onto the previous layer. Finally, the sacrificial paste is removed at 150°C by sublimation through the composite, leaving therefore the desired pattern. For such applications, the key is naturally the formulation of the pastes. On a previous work, we already proposed a potential formulation for the organic sacrificial paste, based on polyols [1]. In the present paper, we will focus on the formulation of the cover paste, which must be adapted rheologically for the Screen-Printing Process, but also chemically due to strong potential interactions between the sacrificial layer and the over-layer. Finally, micro-devices such as simple fluidic channels and suspended structures were produced and shown to be operational, demonstrating the high potential of our Process.