Abstract: A back passivation crystalline silicon solar cell includes an Ag gate finger electrode, a SiNx passivation antireflection layer, an N+ layer, P-type silicon, a back passivation layer, and an Al gate finger electrode, connected sequentially from top to bottom. The Ag gate finger electrode sequentially penetrates through the SiNx passivation antireflection layer and the N+ layer and is connected to the P-type silicon by means of an N++ layer. The Al gate finger electrode penetrates through the back passivation layer and is connected to the P-type silicon by a P+ layer. The back passivation layer is a passivation antireflection laminated structure that includes a SiO2 passivation layer, an AlOx passivation layer, a SiNx antireflection layer, and a SiOxNy antireflection layer, sequentially provided from top to bottom. The solar cell has high carrier selectivity, high temperature stability, excellent interface passivation effect and PID resistance, high conversion efficiency and high stability.

Abstract: Disclosed are a cranial CT-based grading method and a corresponding system, which relate to the field of medical imaging. The cranial CT-based grading method as disclosed solves the problems of relatively great subjective disparities and poor operability in eye-balling ASPECTS assessment. The grading method includes: determining frames where target image slices are located from to-be-processed multi-frame cranial CT data; extracting target areas; performing infarct judgment on each target area included in the target areas to output an infarct judgment outcome regarding the target area; and outputting a grading outcome based on infarct judgment outcomes regarding all target areas.

Abstract: A method includes performing a plasma activation on a surface of a first package component, removing oxide regions from surfaces of metal pads of the first package component, and performing a pre-bonding to bond the first package component to a second package component.

Abstract: The invention provides transient devices, including active and passive devices that electrically and/or physically transform upon application of at least one internal and/or external stimulus. Materials, modeling tools, manufacturing approaches, device designs and system level embodiments of transient electronics are provided.

Abstract: The invention provides transient devices, including active and passive devices that electrically and/or physically transform upon application of at least one internal and/or external stimulus. Materials, modeling tools, manufacturing approaches, device designs and system level embodiments of transient electronics are provided.