Opening the silicon oxide mask of a capacitor in dynamic random access memory is a critical process on a capacitive coupled plasma(CCP)etch tool.Three steps,dielectric anti-reflective coating(DARC)etch back,silicon ox...
supported by Shanghai Rising-Star Program (B type) (No. 18QB1401900)
Radio-frequency(RF)process products suffer from a wafer edge low yield issue,which is induced by contact opening.A failure mechanism has been proposed that is based on the characteristics of a wafer edge film stack.Th...
GaN films with reactive ion etching (RIE) induced damage were analyzed using photoluminescence (PL). We observed band-edge as well as donor-acceptor peaks with associated phonon replicas, all in agreement with pre...
Project supported by the Special Funds for Major State Basic Research Project of China(No.2006CB302704);the National Natural Science Foundation of China(No.60776030)
The appropriate wet etch process for the selective removal of TaN on the HfSiON dielectric with an amorphous-silicon(a-Si) hardmask is presented.SCI(NH4OH:H2O2:H2O),which can achieve reasonable etch rates for me...
supported by the Special Funds for Major State Basic Research Projects(No.2006CB302704);the National Natural Science Foundation of China(No.60776030)
Wet-etch etchants and the TaN film method for dual-metal-gate integration are investigated. Both HF/HN O3/H2O and NH4OH/H2O2 solutions can etch TaN effectively, but poor selectivity to the gate dielectric for the HF/H...
supported by the Space Agency of China and the Chinese Academy of Sciences
A GaSb crystal incorporated with Mn has been grown by the Bridgman method on the Polizon facility onboard the FOTON-M3 spacecraft. Structural defects and growth striations have been successfully revealed by the chemic...
supported by the National High Technology Research and Development Program of China(No.2006AA03Z352);the Science and Technology Commission of Shanghai (No. 08QH14002);the Seed Funding for Key Project by Ministry of Education;the '985'Micro/Nanoelectronics Science and Technology Innovation Platform
We developed a simplified nanofabrication process for imprint templates by fast speed electron beam lithography(EBL) and a dry etch technique on a SiNx substrate,intended for large area manufacturing.To this end,the...