250results about How to "Reduced stiffness requirements" patented technology

The invention provides a well sinking structure, which comprises a closed shaft wall, wherein the shaft wall is provided with inner wall surfaces and outer wall surfaces which are opposite to the inner wall surfaces; a plurality of frame beams which are mutually staggered inside the horizontal surface and the vertical surface and underframe beams which are close to the lowest end of the shaft wall are arranged between the inner wall surfaces; a plurality of constant-height inner supporting blocks are formed on the inner wall surfaces; a plurality of constant-height outer supporting blocks are arranged on the outer wall surfaces; the outer supporting blocks are higher than the inner supporting blocks; bottom surfaces of the underframe beams are planes which are provided with no shoe; and a shoe provided with a bevel is formed on the lowest end of the shaft wall. The invention simultaneously provides a method for accurately settling down the well sinking structure into the ground. The method can accurately guarantee gradual settlement of a sinking well by the controllable method, and is accurate in final settlement, so as to avoid significant safety and quality accidents such as sudden settlement, super-settlement, off-centering, plane revolution, vertical inclined settlement, deformation and fracture, water inflow inside a well and sinking outside the well in the prior construction method.

The invention discloses a device for detecting micro-electronic packaging process quality based on photo-thermal imaging. The device for detecting the micro-electronic packaging process quality based on the photo-thermal imaging comprises an image acquiring device, a working bench, a control device and a data processing device, wherein the image acquiring device comprises a support cross beam, a translational motion motor, an imaging probe and a light transmitter. The translational motion motor is fixed on the lower lateral face of the cross beam, and the imaging probe is perpendicular to a moving block fixed in the translational motion motor. The light transmitter is connected to the moving block through an adjustable connecting piece, and emitted light is reflected by a sample and then enters the imaging probe by adjusting the adjustable connecting piece. The data processing device is used for processing light images and heat image data acquired by the image acquiring device to obtain correlation coefficient and mean square error statistic coefficient, comparing the correlation coefficient and the mean square error statistic coefficient and a preset threshold value and obtaining process quality evaluation according to a compared result. The device for detecting the micro-electronic packaging process quality based on the photo-thermal imaging can achieve recognition of residual particles, voids and material quality and measurement of microvoid depth and is reliable in detection and evaluation.