PCB cross-section analysis verifies your board’s internal structure, such as cracks, voids in solder joints, and through-hole filling, mostly using a microscope. IPC-2221 A/B test coupon examines the internal defects, and IPC-2221 D coupon inspects the thermal stress on the class 3 boards....
Deconvolution is a powerful tool for restoring a blurred image using knowledge of the point spread function (PSF) describing the blurring of light by the microscope, although care must be taken to ensure accuracy of subsequent quantitative analysis. The process of model convolution also requires ...
can be created using various techniques, including holographic and electron-beam lithography. Because the mold can be replicated and reused, complex multistep and multiprocess methods can be used to create complex nanostructure patterns. Since these initial tooling steps do not need to be repeated...
This country would not amount to as much as it does if the young men of fifty years ago had been afraid that they might earn more than they were paid for. A reporter called on Edison to interview him about a substitute for lead in the manufacture of storage batteries that the s...
Having hard rules for usability can be tricky. Conveniently, we can look to inclusive design and accessibility guidelines. After all, in the words of someone else, accessibility is really usability under a microscope. Generally the feedback I offer applies to desktop browsing. For a touch-only ...
God is building a home. He’s using us all—irrespective of how we got here—in what he is building. He used the apostles and prophets for the foundation. Now he’s using you, fitting you in brick by brick, stone by stone, with Christ Jesus as the cornerstone that holds all the ...
Recently it has indeed been shown that using a single 50 fs laser pulse one can permanently switch the magnetization in Co-doped yttrium iron garnet thin film (YIG:Co) with (001) plane of the sample10. In this material, the Co-dopants are responsible for strong magnetocrystalline ...
By composite modelling using prior structures (Methods) we established reliable models for all four poses (Fig. 3a–d). The integrin adopts the open, high-affinity conformation of the headpiece with the hybrid domain swung out by 75° (state 8) relative to its orientation in the closed state...
says ashkan soltani, who served as chief technologist to the federal trade commission during its 2011 investigation of facebook. facebook didn't respond to wired's request for comment. at a time when facebook is under the microscope for violating its users' privacy, such techniques are bold ...
The imaging quality and overall performance of this X-ray 3D microscope have already reached the top level of similar products in the world [20,21]. The equipment can be used for 3D characterization of the internal pore structure of coal and rock at the micro-scale. By using a combination...