Abstract: A method for manufacturing a semiconductor device includes: forming an insulating film on a surface of a semiconductor layer of a semiconductor substrate; forming a contact hole in the insulating film; forming a conductor material on the insulating film to be in contact with the semiconductor layer through the contact hole; and patterning the conductor material using an alignment key included in the conductor material.

Abstract: A crystalline aluminosilicate which has the following characteristics:(A) the SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio as determined by chemical analysis is from 5 to 15;(B) the molar ratio of the Al content in the zeolite framework to the total Al of the aluminosilicate is from 0.3 to 0.6;(C) the unit cell dimension is 24.30 .ANG. or larger but less than 24.45 .ANG.;(D) the alkali metal content in terms of oxide is 0.02% by weight or more but less than 1% by weight in total;(E) the pore distribution yields characteristic peaks at around 50 .ANG. and at around 180 .ANG., with the volume of pores 100 .ANG. or larger but smaller than 600 .ANG. accounting for 10 to 40% of the whole pore volume; and(F) the X ray diffraction pattern thereof yields characteristic peaks of zeolite Y; and a metal modified crystalline aluminosilicate characterized by an X-ray diffraction pattern characteristic of zeolite Y, which is an ion exchanged form or a metal impregnated form containing from 0.

Abstract: An apparatus for hardening a steel pipe by quenching it with cooling water, comprises a cylindrical assembly including a casing and a cover, said casing being removably mated with said cover so that said cylindrical assembly may be selectively opened or closed, a plurality of supports disposed within said cylindrical assembly for supporting a steel pipe to be hardened so as to align the steel pipe with said cylindrical assembly, and nozzle means disposed at one end of said cylindrical assembly for injecting cooling water into said cylindrical assembly for cooling water to flow both outside and inside the steel pipe in the longitudinal direction thereof. The steel pipe is uniformly quenched over its entire length.