No abstract

BaTiO 3 -resin hybrid composite is one of the most promising candidates for the embedded capacitors. We utilized the inkjet printing to prepare BaTiO 3 -resin hybrid film. In order to extract the maximum relative permittivity from the hybrid films, the following aspects were investigated: (1) the effect of BaTiO 3 powder size on the relative permittivity of inkjet-printed Ceramic Product Development and Commercialization H films and (2) the improvement of the packing density by using two different sizes of BaTiO 3 powders resulting in the increase in relative permittivity. The microstructures of the films were investigated to confirm the improvement on the packing density and their effects on the relative permittivity.

No abstract

We used the inkjet printing to fabricate alumina–resin hybrid films without a high temperature sintering process. Single- and co-solvent ink systems showing different evaporation behaviors were formulated in order to understand their impacts on the inkjet-printing of the alumina dots, lines, and films. The packing densities of the inkjet-printed alumina films from both ink systems were around 60% which is higher than the value obtained by other conventional methods. Since the high temperature sintering process was avoided, the polymer–resin was infiltrated through the inkjet-printed alumina films by the same inkjet printing as a binder. The microstructures of these hybrid films were investigated in order to confirm if the microvoids in the films were filled with the resin. The dielectric properties of these hybrid films such as relative permittivity and Q-value were measured in order to assess if these hybrid materials is applicable to three-dimensional (3D) system integration as ceramic package substrates.

Adaptive Rejection Sampling (ARS) method is a well-known random number generator to acquire a random sample from a probability distribution, and has the advantage of improving the proposal distribution during the sampling procedures, which update it closer to the target distribution. However, the use of ARS is limited since it can be used only for the target distribution in the form of the log-concave function, and thus various methods have been proposed to overcome such a limitation of ARS. In this paper, we attempt to compare five random number generators based on ARS in terms of adequacy and efficiency. Based on empirical analysis using simulations, we discuss their results and make a comparison of five ARS-based methods.