No abstract

Aiming at the problem of poor test accuracy of digital integrated circuits at present, this paper puts forward the research on digital integrated circuit test technology under the Internet of things technology, realizes circuit information collection and analysis through analog digital integrated circuit faults, and constructs an abnormal data identification algorithm of digital integrated circuits combined with the Internet of things technology. Finally, it is confirmed by experiments, under the Internet of things technology, digital integrated circuit test technology has high practicability in the process of practical application, which can effectively solve the problem of insufficient test accuracy of digital integrated circuit and fully meet the research requirements.

TiO2 nanotube arrays were fabricated through anodization in the glycol electrolyte system. The new composite structures of the bottom nanotube and the upper nanowire with a length of 15 um to 20 um were prepared. The influence of the water contents in the electrolyte with respect to the composite structure was studied through two-step anodization. The results show that the composite structure can be obtained based on the moderate etching rate of the electrolyte and the selective etching of the nanotube when the glycol system electrolyte contains 0.4wt% NH4F and 2 vol% H2O.

MnZn soft ferrite materials with NiO-CoO dopant are prepared by conventional oxide technique.The influences of CoO and NiO addition on the microstructure and magnetic properties of low-loss and high Bs MnZn ferrites are investigated. The present results show that MnZn soft ferrite materials with CoO addition of 0.1wt% and NiO addition of 1.28wt% possess both homogeneous grains and high saturation magnetic flux density. The lowest loss point is located at 100°C. The valley point of power loss shifts to higher temperature with increasing of NiO dopant. The power losses decrease and sintering density increases with increase of CoO addition. The sintered MnZn ferrite materials based upon a specific sinter curve possesss excellent comprehensive properties: μi=2198 , Pcv=319 kw/m3 , Bs=540mT (T=25°C), Bs=451mT (T=100°C).