利用射频溅射方法在n型Si(111)衬底上制备出立方相含量接近100%且粘附性较高的立方氮化硼(c—BN)薄膜.傅里叶变换红外谱(FTIR)的结果表明,基底负偏压对薄膜立方相含量和薄膜压应力有很大影响,另外,衬底的电阻率对c—BN生长和薄膜的压应力也有一定的影响。
Cubic boron nitride (c-BN) thin films with approximate 100% cubic phase and lower compressive stress were prepared on n-Si( 111 ) substrates by radio frequency sputtering . The infrared spectra showed that the negative substrate bias had important effect on the content of cubic phase and the compressive stress of films. In addition, a relatively higher substrate resistivity favored the c-BN formation and reduced the compressive stress.