137results about How to "Reduce plane size" patented technology

The size of a light emitting device is reduced. The light emitting device for flash photography includes: a luminescent xenon tube; IGBT for the discharge switch of the xenon tube; a capacitor for discharging the xenon tube; and MOSFET for the charge switch of the capacitor. A semiconductor device used in this light emitting device is obtained by sealing the following in a package: a semiconductor chip in which the IGBT is formed; a semiconductor chip in which the MOSFET is formed; a semiconductor chip in which a drive circuit of the IGBT and a control circuit of the MOSFET are formed; and multiple leads coupled thereto.

The invention relates to an ecological interlocking slope protection vegetation brick and a preparation method thereof. The vegetation brick comprises a block body and a vegetation disk, the block body comprises a center portion, a mounting clamp block, a mounting clamp groove, the center portion is provided with a center hole, the vegetation disk is arranged in the center hole, the upper surface of the vegetation disk is lower than that of the center portion, the center portion is provided with a front side surface, a rear side surface, a left side surface and the right side surface in the vertical direction, the mounting clamp block is positioned on the front side surface and left side surface and extends to the direction far wary from the center portion, the mounting clamp groove is respectively recessed to the center direction of the center portion from the rear side surface and the right side surface of the center portion, thickness of the mounting clamp block and the depth of the mounting clamp groove are equal and smaller than the thickness of the center portion, and the mounting clamp block and the mounting clamp groove on the adjacent slope protection vegetation bricks are mutually meshed, so that all-directional interlocking is achieved. Bricks are paved without mortar concrete in interlocking and self-embedding manner, and the vegetation brick is simple and easy to operate, low in construction cost, high in construction efficiency and applicable to slope strengthening and ecological restoration.

A surface mount crystal oscillator comprises a package body having a first recess, a cover having a second recess, a crystal blank secured to an inner bottom surface of the second recess, and an IC chip secured to a bottom surface of the first recess. The IC chip has an oscillation circuit using the crystal oscillator integrated therein, and has IC terminals on one main surface for connection to the outside. A first and a second annular metal film are disposed to surround open end surfaces of the first recess and second recess, respectively. By bonding the first and second annular metal films with an eutectic alloy, the crystal blank and IC chip are hermetically sealed in a space defined by the integrated first and second recesses.

The invention provides a Fingerprint of Thing encoding method and system. According to the method and system, the encoding of numbers and / or letters is realized through setting at least one fingerprint feature point on at least one fingerprint line on at least one preset fingerprint template by means of a human body fingerprint image, so as to form fingerprint graphs which comprise specific information, and the fingerprint graphs can be used for carrying out code identification on products. The fingerprint graphs comprise specific encoding information of certain articles and are unique like human body fingerprints when being formed on the articles; and the fingerprint graphs which express the specific identity information of the articles by using feature points are called as Fingerprints of Things (FOT). The Fingerprints of Things serve as brand-new codes which are derived from human body fingerprint graphs and have two-dimensional sizes, comprise more information than one-dimensional codes, and are capable of solving the problem that the one-dimensional codes cannot express the two-dimensional codes and are too complicated. By using the encoding method and system provided by the invention, a Fingerprint of Thing which comprises specific identity information can be imprinted for each product; and the Fingerprints of Things are like human body fingerprints which are unchanged lifelong and can be checked at any time.

At least two switching devices each including a substrate formed of a wide bandgap semiconductor, source and gate electrodes formed in a principal surface side of the substrate, and a drain electrode formed on the back surface of the substrate are stacked so that respective upper surface sides of the switching face each other.