摘要:
To provide a foamed plastic provided with holes having a specified area at a specified aperture ratio. The holes are either a through-hole or a non-through-hole and properly provided. The foamed plastic is superior in sound absorbing property and has a strength. In the case of non-through-holes, the foamed plastic can beep a sound absorbing effect as well as a sound intercepting effect, and for example, when used as a cushioning material of collision to be used as the lower portion of a dash panel of a motorear, not only the cushioning of collision but also the absorption of noises from an engine can be achieved. On the other hand, a foamed plastic obtained by pre-foaming foamable beads and again foaming the pre-foamed beads is a foamed plastic having gas permeability, which is different from usual foamed plastics. In this case, when an air current resistance value is set within a specified range, an audible sound of a human being can be most effectively absorbed. Thus, the latter foamed plastic can also be used as a cushioning material of collision and the like similar to the former foamed plastic.
摘要:
A power module can prevent damages due to cracking or breakage of an insulating substrate when molding even if a heat plate constituting a power module pre-product is made areally smaller than the insulating substrate, and can also sufficiently satisfy demand for minimization. Specifically, the power module pre-product is sealed by a molding resin layer in a state where externally exposed end portion on one end side in both external connecting terminals and the other surface side of a heat plate are each exposed to the outside. The power module substrate constituting a multilayer substrate body includes an aligning hole, into which an aligning pin is inserted, the pin being included in a lower molding die constituting a molding die with an upper molding die that molds a molding resin layer, so as to position the power module pre-product inside a cavity.
摘要:
An organic thin-film electroluminescent display device comprising a substrate, hole injection electrodes, an organic thin film layer, electron injection electrodes, an electrode-driving IC for driving the electron injection electrodes and the electron injection electrodes and lead wires for connecting the hole injection electrodes and the electron injection electrodes to the electrode-driving IC. The lead wires each include a lead underlayer made of the same material of the hole injection electrode and a lead electroconductive layer formed on the lead underlayer and having a higher electroconductivity than that of the lead underlayer and or the electron injection electrodes each may include an underlayer for the electron injection electrode and an electroconductive layer for the electron injection electrode formed on the underlayer for the electron injection electrode and having a higher electroconductivity than that of the underlayer for the electron. The device injection electrode can prevent fluctuations in luminescence brightness due to different ohmic losses of lead wires connecting the hole injection electrodes and the electron injection electrodes to the electrode-driving IC and due to different electric resistances of electron injection electrodes.
摘要:
A piezoelectric actuator is constructed by forming a common electrode 27 of Cr, a piezoelectric layer 29 of Pb(Zr,Ti)O3, a cover layer 31 of BaTiO3, and an individual electrode 33 of Pt in this order into a laminate. The thickness of the piezoelectric layer 29 in the lamination direction (T1) and the thickness of the cover layer 31 in the lamination direction (T2) satisfy the relationship of 0.08≦T2/T1≦1. The relative dielectric constant of the piezoelectric layer 29 (εr1) and the relative dielectric constant of the cover layer 31 (εr2) satisfy the relationship of εr2/εr1≧0.2.
摘要翻译:压电致动器通过形成Cr的公共电极27,Pb(Zr,Ti)O 3 3的压电层29,BaTiO 3 3的覆盖层31, 和Pt的单个电极33。 压电层29在层叠方向(T 1)上的厚度和覆盖层31的层叠方向(T 2)的厚度满足0.08 <= T 2 / T 1 <= 1的关系。 压电层29的相对介电常数(ε1)和覆盖层31的相对介电常数(ε2)满足ε2 /ε1> 0.2的关系。
摘要:
A ferroelectric element is described which has a structure including a common electrode 11, a ferroelectric film 10 formed on the common electrode 11, an individual electrode 3 formed on the ferroelectric film 10, a lead wire 15 for feeding electric power to the individual electrode 3, which is formed on the same plane as of the individual electrode 3, and a protection film 16 entirely covering the exposed parts of the ferroelectric film 10 and the individual electrode 3, and covering the lead wire 15. The protection film 16 is preferably made of a material whose Young's modulus is smaller than that of the ferroelectric film 10, exactly 1/20 or smaller of the Young's modulus of the ferroelectric film 10. Further, the ferroelectric film is formed with the insulation reinforcing film containing at least one of the elements constituting the ferroelectric film.
摘要:
In a piezoelectric element comprising a first electrode 2 provided on a substrate 1, a piezoelectric material 3 provided on the first electrode 2 and a second electrode 4 provided on the piezoelectric material 3, the piezoelectric material 3 is configured so as to have a perovskite type crystal structure which is represented by a formula ABO3 and in which the main component for the A site is Pb and the main components for the B site are Zr, Ti and Pb, and configured so that a ratio of Pb atoms to all atoms in the B site is more than 3% and not more than 30%. Namely, the piezoelectric material 3 is formed so as to contain Pb excessively and the excess Pb atoms are activated to be Pb4+ during formation of the piezoelectric material 3 and then introduced into the B site.
摘要:
Electrically functional electronic device including an organic electroluminescence device is protected with a dense protective film, e.g. a silicon oxynitride film, formed on at least one part of the outer surface of the device at a low temperature by ECR plasma sputtering can prevent permeation of moisture, oxygen etc. into the device from the outside.
摘要:
A power module can prevent damages due to cracking or breakage of an insulating substrate when molding even if a heat plate constituting a power module pre-product is made areally smaller than the insulating substrate, and can also sufficiently satisfy demand for minimization. Specifically, the power module pre-product is sealed by a molding resin layer in a state where externally exposed end portion on one end side in both external connecting terminals and the other surface side of a heat plate are each exposed to the outside. The power module substrate constituting a multilayer substrate body includes an aligning hole, into which an aligning pin is inserted, the pin being included in a lower molding die constituting a molding die with an upper molding die that molds a molding resin layer, so as to position the power module pre-product inside a cavity.
摘要:
The invention presents an organic electroluminescence element excellent in long-term durability and reliability, a manufacturing method excellent in mass producibility, and a display device using the organic electroluminescence element. Accordingly, to prevent growth of dark spots in the luminous layer by completely shutting off invasion of moisture or oxygen into an anode or an organic thin film layer, a shield material is adhered to an element by using low melting glass or low melting solder. To fuse the low melting glass or low melting solder used for this purposes, laser or ultrasonic wave is used. The surface of the element is sealed with a protective film in a film thickness of 3 microns to 30 microns, or a protective film composed of two-layer laminate film of insulating compound layer andmetal film. According to these inventions, a highly reliable organic electroluminescence element small in changes in the time course suchas growth of dark sports and lowering of luminance is obtained.