supported in part by the National Key Research&Development(R&D)Plan(2022YFB3205800);the National Natural Science Foundation of China(52305618).
Hydraulic technology with smaller sizes and higher reliability trends,including fault prediction and intelligent control,requires high-performance temperature and pressure-integrated sensors.Current designs rely on pl...
funded by the National Natural Science Foundation of China(Grant No.U20A6004);the Natural Science Foundation of Hunan Province(Grant No.2021JJ40734);the State Key Laboratory of High Performance Complex Manufacturing(Grant No.ZZYJKT2020-08);the Key Project of Science and Technology of Changsha(Grant No.kq2102005).
An urgent demand for lowering bonding temperature has been put forward by advanced flip-chip integration such as micro-LED packaging and heterogeneous integration of semiconductor devices.Indium microbump with low-mel...
Supported by the Major Program for Research on LED of Chinese Academy of Science(KZCC-EW-106);the National Key Research and Development Program of China(2016YFB0701003);the Natural Science Foundation of Fujian Province(2015j01231)
Ce,Gd:YAG transparent ceramic was prepared by tape casting and solid state reaction method. Meanwhile, its crystal structure, chemical state and luminous properties were discussed. The prepared samples are identified...
Supported by the National Key Research and Development Program of China under Grant Nos 2016YFB0400901 and2016YFB0400804;the Key Laboratory of Infrared Imaging Materials and Detectors of Shanghai Institute of Technical Physics of Chinese Academy of Sciences under Grant NoⅡMDKFJJ-15-07;the National Natural Science Foundation of China under Grant Nos 61675079,11574166 and 61377034;the China Postdoctoral Foundation under Grant No 2016M602287
High-reflectivity Al-based n-electrode is used to enhance the luminescence properties of InGaN-based 395nm flip-chip near-ultraviolet (UV) light-emitting diodes. The Al-only metal layer could form the Ohmic contact ...
Conventional GaN-based flip-chip light-emitting diodes (CFC-LEDs) use Au bumps to contact the LED chip and Si submount, however the contact area is constrained by the number of Au bumps, limiting the heat dissipatio...
supported by the National Natural Science Foundation of China(Nos.61274040,61274008);the National Basic Research Program of China(No.2011CB301902);the National High Technology Program of China(No.2011AA03A103)
The light extraction enhancement of freestanding GaN-based flip-chip light-emitting diodes (FS- FCLEDs) using two-step roughening methods is investigated. The output power of LEDs fabricated by using one-step and tw...
In this paper, three-dimensional finite element analysis using the commercial ANSYS software is performed to study the thermal performance of a thermally enhanced FC-PBGA (flip-chip plastic ball grid array) assembly i...
GaN based MQW epitaxial layers were grown on Si (111) substrate by MOCVD using AIN as the buffer layer. High light extraction LEDs were prepared by substrate transferring technology in combination with thin-film and...