摘要:
A Si substrate 1 with a SiGeC crystal layer 8 deposited thereon is annealed to form an annealed SiGeC crystal layer 10 on the Si substrate 1. The annealed SiGeC crystal layer includes a matrix SiGeC crystal layer 7, which is lattice-relieved and hardly has dislocations, and SiC microcrystals 6 dispersed in the matrix SiGeC crystal layer 7. A Si crystal layer is then deposited on the annealed SiGeC crystal layer 10, to form a strained Si crystal layer 4 hardly having dislocations.
摘要:
A multi-layer film 10 is formed by stacking a Si1-x1-y1Gex1Cy1 layer (0≦x1 y2) having a high Ge mole fraction, e.g., a Si0.2Ge0.8 layer 12. In this manner, the range in which the multi-layer film serves as a SiGeC layer with C atoms incorporated into lattice sites extends to high degrees in which a Ge mole fraction is high.
摘要:
A method of fabricating a semiconductor device according to the present invention includes a step A of forming a polycrystalline or amorphous preliminary semiconductor layer on a surface of a substrate so as to have an opening portion and a step B of simultaneously forming an epitaxial growth layer on an exposed portion of a surface of the substrate through the opening portion and a non-epitaxial growth layer on the preliminary semiconductor layer using a CVD method while heating the substrate inside a reaction chamber by means of a heat source inside the reaction chamber, the epitaxial growth layer being made of single crystalline semiconductor, and the non-epitaxial growth layer being comprised of a polycrystalline or amorphous semiconductor layer.
摘要:
A method of fabricating a semiconductor device according to the present invention includes a step A of forming a polycrystalline or amorphous preliminary semiconductor layer on a surface of a substrate so as to have an opening portion and a step B of simultaneously forming an epitaxial growth layer on an exposed portion of a surface of the substrate through the opening portion and a non-epitaxial growth layer on the preliminary semiconductor layer using a CVD method while heating the substrate inside a reaction chamber by means of a heat source inside the reaction chamber, the epitaxial growth layer being made of single crystalline semiconductor, and the non-epitaxial growth layer being comprised of a polycrystalline or amorphous semiconductor layer.
摘要:
An initial estimated value of a process condition is set, and a structure of an element of a semiconductor device is estimated by a process simulator, after which an estimated value of a physical amount measurement value is calculated. Then, an actual measurement value of a physical amount of the element of the semiconductor device, which is obtained by an optical evaluation method, and a theoretical calculated value thereof are compared with each other, so as to obtain a probable structure of the measured semiconductor device element by using, for example, a simulated annealing, or the like. A process condition in a process for other semiconductor device elements can be corrected by using the results.
摘要:
After the surface of a Si substrate (1) has been pretreated, an SiGeC layer (2) is formed on the Si substrate (1) using an ultrahigh vacuum chemical vapor deposition (UHV-CVD) apparatus. During this process step, the growth temperature of the SiGeC layer (2) is set at 490° C. or less and Si2H6, GeH4 and SiH3CH3 are used as Si, Ge and C sources, respectively, whereby the SiGeC layer (2) with good crystallinity can be formed.
摘要翻译:在Si衬底(1)的表面经过预处理之后,使用超高真空化学气相沉积(UHV-CVD)装置在Si衬底(1)上形成SiGeC层(2)。 在该工艺步骤中,SiGeC层(2)的生长温度设定为490℃以下,Si 2 H 6,GeH 4,SiH 3 CH 3分别用作Si,Ge,C源,SiGeC层(2)与 可以形成良好的结晶度。
摘要:
A Si substrate 1 with a SiGeC crystal layer 8 deposited thereon is annealed to form an annealed SiGeC crystal layer 10 on the Si substrate 1. The annealed SiGeC crystal layer includes a matrix SiGeC crystal layer 7, which is lattice-relieved and hardly has dislocations, and Sic microcrystals 6 dispersed in the matrix SiGeC crystal layer 7. A Si crystal layer is then deposited on the annealed SiGeC crystal layer 10, to form a strained Si crystal layer 4 hardly having dislocations.
摘要:
A thermal cleaning of a substrate that has been subjected to wet cleaning is carried out under a high vacuum atmosphere to remove an oxide film remaining on the substrate. Thereafter, a thermal cleaning is carried out under a hydrogen atmosphere to remove contamination such as carbon or the like. At this time, the oxide film has already been removed and therefore contamination is effectively removed by a relatively low temperature and short duration thermal cleaning. Thus, problems such as the degradation of the profile of the impurity concentration in the impurity diffusion layer which has been formed over the substrate are prevented.