摘要:
On a circuit chip on which a processing circuit for sensor outputs is formed, bump electrodes and a sealing bump, which has a shape of rectangular frame and is arranged to surround the bump electrodes, are formed by Sn—Pb solder. On a sensor chip provided with a sensing portion, electrode pads to be bonded to the bump electrode and a joining pad to be bonded to the sealing bump are formed. When the sensor chip is connected onto the circuit chip, an air-tight space containing the sensing portion is formed by the sealing bump and the joining pad.
摘要:
An aluminum alloy extruded material in relation with the present invention is with high strength by die quench air cooling and excellent in SCC resistance. The aluminum alloy extruded material is an Al—Zn—Mg-based aluminum alloy extruded material for structural member for automobiles such as a bumper reinforce, a door guard bar and the like which satisfies three expressions of 5.0≤[Zn]≤7.0, [Zn]/5.38
摘要:
A protective sheet is fixed to a jig, and regions of the protective sheet corresponding to regions where dicing-cut is to be performed are removed to form grooves. Then, a semiconductor wafer is bonded to the protective sheet at an opposite side of the jig, and the jig is detached from the protective sheet and the semiconductor wafer bonded together. After that, the semiconductor wafer is cut into semiconductor chips by dicing along the grooves of the protective sheet. Because the protective sheet is not cut by dicing, no scraps of the protective sheet is produced, thereby preventing contamination to the chips.
摘要:
On a silicon wafer there is formed a movable gate MOS transistor (sensing element: functional element). A bonding frame consisting of a silicon thin film is patterned around an element formation region on the surface of the silicon wafer. On a cap forming silicon wafer there is projectively provided a leg portion on the bottom surface of which a bonding layer consisting of a gold film is formed. The cap forming silicon wafer is disposed on the silicon wafer, whereupon heating with respect thereto is performed at a temperature equal to higher than a gold/silicon eutectic temperature to thereby make bondage between the bonding frame of the silicon wafer and the bonding layer of the cap forming silicon wafer. Thereafter, the both wafers are diced in chip units.
摘要:
A casted ingot of a heat treatment type Al—Zn—Mg series aluminum alloy comprising Zn: 4.0-8.0% by mass, Mg: 0.5-2.0% by mass, Cu: 0.05-0.5% by mass, Ti: 0.01-0.1% by mass, and any one or more of Mn: 0.1-0.7% by mass, Cr: 0.1-0.5% by mass and Zr: 0.05-0.3% by mass, and the balance being aluminum and incidental impurities is extruded at a homogenization treatment temperature after a homogenization treatment without cooled, and a resulted extruded material is die quenched at a cooling rate equal to or more than 100° C./min and then subjected to an artificial aging treatment, wherein the homogenization treatment is carried out by heating to the homogenization treatment temperature as 430-500° C. at a heating rate less than 750° C./hr or by heating to the homogenization treatment temperature and held the homogenization treatment temperature for 3 hours.
摘要:
An aluminum alloy extruded material in relation with the present invention is with high strength by die quench air cooling and excellent in SCC resistance. The aluminum alloy extruded material is an Al—Zn—Mg-based aluminum alloy extruded material for structural member for automobiles such as a bumper reinforce, a door guard bar and the like which satisfies three expressions of 5.0≦[Zn]7.0, [Zn]/5.38
摘要:
A bridge circuit includes four gage resistors. Each gage resistor is divided into two division gage resistors. A couple of division gage resistors. The junction points between division gage resistors outputting the same potential when no pressure is applied are used for diagnostic. Four gage resistors out of the eight gage resistors are arranged near the center of diaphragm 14, and the other four division resistors are arranged near the peripheral edge portion of the diaphragm 14 to make the stress distribution even.
摘要:
A method of manufacturing a semiconductor device, which can effectively form a trench having a high aspect ratio with relatively simple steps. An initial trench is formed in a silicon substrate by a reactive ion etching using an oxide film mask as an etching mask. After forming a protection oxide film on an inside surface of the trench, a part of the protection oxide film at which positions at a bottom surface of the trench is removed by a reactive ion etching, so that an etching of the silicon substrate is advanced through the bottom surface of the trench. Furthermore, the step for forming the protection oxide film and the step for re-etching the bottom surface of the trench are repeatedly performed, so that a depth of the trench becomes a predetermined depth. These steps are performed in a common chamber by using plasma processed with switching gases to be introduced to the chamber.
摘要:
A semiconductor device has a semiconductor wafer having sensing portions exposed on a surface thereof and an adhesive sheet attached to the semiconductor wafer as a protective cap to cover the sensing portions. The adhesive sheet is composed of a flat adhesive sheet and adhesive disposed generally on an entire surface of the adhesive sheet. Adhesion of the adhesive is selectively reduced by UV irradiation to have adhesion reduced regions, and the adhesion reduced regions face the sensing portions. The protective cap can be produced with high productivity, and securely protect the sensing portions when the semiconductor wafer is diced and is transported.
摘要:
When a preinitialized load module 2 is modified, modifying command analysis means 401 registers modifying commands in a modifying command table 302, preinitialized load module loading means 402 loads a program portion 201 in a main memory 3, modifying command processing means 403 modifies a program image 301 according to the modifying command, preinitialized load module unloading means 404 reflects the image after modification to the program portion 201 and modifying command table unloading means 405 reflects the content of the modifying command table 302 to a modification history record portion 202. When the image in the modified portion is restored to the image before modification, modification restoring command analysis means 407 registers a modification restoring command in the modification restoring command table 303, modification history acquiring means 408 acquires the modifying command corresponding to the modification restoring command from the modification history record portion 202 and modification restoring means 409 restores the image before modification from the image in the portion indicated by the modifying command.