Abstract: A method of forming a semiconductor device includes: forming a first semiconductor layer on a semiconductor substrate, the first semiconductor layer being of the same dopant type as the semiconductor substrate, the first semiconductor layer having a higher dopant concentration than the semiconductor substrate; increasing the porosity of the first semiconductor layer; first annealing the first semiconductor layer in an atmosphere including an inert gas; forming a second semiconductor layer on the first semiconductor layer; and separating the second semiconductor layer from the semiconductor substrate by splitting within the first semiconductor layer. Additional methods of forming a semiconductor device are described.

Abstract: A shielded plug connector includes at least one shielded cable having a cable shielding, a plug or socket insert having a metal collar, and a one-piece, one-shell, metal shielding housing. The shielding housing has a plug side at which the plug or socket insert is disposed. The plug side has an end surface and bearing points for the metal collar being recessed inwardly relative to the plug-side end surface, for end-surface contacting of the shielding housing with an appliance wall only at the plug-side end surface. The shielding housing has a connection side with a connection region for connecting the at least one shielded cable. The connection region has a connection-side end and a transverse wall. The transverse wall is recessed inwardly relative to the connection-side end, it has at least one lead-through formed therein and it is in direct end contact with the cable shielding.

Abstract: Equipment for purifying gases comprising a housing having opposing closed end faces and containing wetting fluid which is reactive to impurities in the gas to be purified; a cylinder rotatably mounted within the housing such that the cylinder is mounted between the closed end faces; a plurality of spaced apart plates extending outwardly of the cylinder and extending lengthwise along the cylinder so that as the cylinder rotates the plates are immersed in the wetting fluid and thereafter emerge from the wetting fluid; an air inlet opening for introducing air into the housing provided in one of the end faces such that air is not directed into the wetting fluid and an air outlet opening in the other of the closed end faces through which air exits; a gas inlet opening for introducing the gas to be purified into the housing and a gas outlet for removing the purified gas from the equipment, the gas inlet provided in one of the opposing closes end faces such that the gas to be purified is not directed into the wettin

Abstract: The invention relates to a gas-driven pulsating water jet propulsive duct drive for watercraft with a propulsive duct which has at the front end an inlet aperture for water with a closure member closing and opening periodically by means of a drive device, is open at the rear end for ejection of water and comprises at the front end a power gas outlet behind the inlet aperture. With propulsive duct drives of this kind the forward inlet aperture of the water-filled propulsive duct is periodically closed, the power gas outlet opened, in order to feed power gas under pressure into the propulsive duct and to expel the fluid filling of the propulsive duct rearwards, the power gas outlet is closed and the forward inlet aperture opened again for a fresh fluid filling.