空腔型薄膜体声波滤波器的关键技术进展
陶桂龙, 支国伟, 罗添友, 欧阳佩东, 衣新燕, 李国强

Progress on Key Technologies of Cavity-structured Thin Film Bulk Acoustic Wave Filter
TAO Guilong, ZHI Guowei, LUO Tianyou, OUYANG Peidong, YI Xinyan, LI Guoqiang
图12 Sc掺杂量对Al1−xScxN薄膜质量及表面形貌的影响[69]
Fig. 12 Effect of Sc-dopant concentration on crystal quality and surface morphology of Al1−xScxN thin films[69]
(a-c) TEM dark-field images and electron diffraction patterns for 10%, 31%, and 42% Sc content; (d-f) Corresponding SEM plane views