U.S. Philips Corporation

Aixtron, Inc.

Jan Mulder

George A Asselman

Kurt H Buschow

Johannes Käppeler

Roelf Jan Meijer

Adam Boyd

Gijsbert Prast

Andries R Miedema

Andries Mijnheer

Olivier Feron

Marcel Louis Lugthart

Victor Saywell

The invention relates to a device for coating substrates having a process chamber () disposed in a reactor housing and a two-part, substantially cup-shaped susceptor () disposed therein, forming an upper susceptor part () with the cup floor thereof having a flat plate (') and a lower susceptor part () with the cup side walls thereof, the outer side () of the plate (&#x2032;) of the upper susceptor part () facing upwards toward the process chamber () and forming a contact surface for at least one substrate, the upper susceptor part () contacting a front edge (&#x2033;) of the lower susceptor part () at the edge of said upper susceptor part (), the lower susceptor part () being supported by a susceptor carrier (), and heating zones (A, B, C) for heating the upper susceptor part () being disposed below the plate (&#x2032;). An advantageous refinement of the invention proposes that the upper susceptor part () be removable from the process chamber () separately from the lower susceptor part (), and the joint () between the edge of the upper susceptor part () and the front edge (&#x2033;) of the lower susceptor part () be formed as a heat conduction barrier.

Device for coating substrates disposed on a susceptor

Amplification device having an adjustable bandwidth

A free piston hot gas reciprocating machine having, one piston surface which varies the volume of a working space, while its other surface bounds a buffer space of constant pressure, and a control mechanism formed by an auxiliary cylinder and an auxiliary piston which is movable therein. The control mechanism maintains a given central position of the free piston by instantaneously opening a connection between the buffer space and the auxiliary cylinder space.

Piston-centering system for a hot gas machine

A filling mass for low-temperature regenerators comprising one or more of the compounds of the formula A.sub.1-x B.sub.x Rh.sub.1-y X.sub.y, wherein A = Sm, Gd, Tb, Dy or a mixture thereof, wherein B = Ho, Er, Tm, Yb or a mixture thereof, wherein X = Cu, Zn, Ru, Pd, Ag, Re, Os, Ir, Pt, Au or a mixture thereof, and wherein 0.ltoreq..times..ltoreq.1 and 0.ltoreq.y&lt;0.2.

Heat regenerator

A hot-gas reciprocating machine having a free piston, one face of which varies the volume of a working space while its other face bounds a buffer space of constant pressure. A control mechanism maintains a constant nominal central piston position by momentarily connecting the working space and the buffer space.

Hot-gas reciprocating machine with self-centered free piston

A radiator operable with a flow of air for cooling a quantity of water and formed as zig-zag walls, each of which comprises air ducts of predetermined ratio of flow length to hydraulic diameter.

Motor-car radiator

A pressing block for a phonograph or video record press in which ducts for cooling and heating media for the die are formed by a thin layer of a porous heat-conducting material provided between two thin metal sheets and bonded thereto. The assembly is connected on its side remote from the die to a supporting element of at least partially heat-insulating material.

Pressing block for die pressing thermoplastic material

A cooling system for a combustion engine with a radiator wherein a plurality of cooling medium pipes are arranged in one plane, the pipes being connected by strips of gauzes, with air ducts between the strips or in the gauzes having a hydraulic diameter (d.sub.h) of less than 2 mm, the length (L) of said ducts being less than 25 mm, and L/d.sub.h &lt;25. The radiator is preceded by a dirt collector consisting of a thin zigzag-folded air-transmitting layer with ducts having a hydraulic diameter of less than 2 mm.

Cooling system

A cold-gas refrigerator of the type in which the displacer is driven by pressure fluctuations generated in the working medium, the piston being coupled to an a.c. supplied linear actuator; the system formed by piston/armature coil assembly of the actuator and working medium resonates at a frequency which is tuned to the alternating current frequency.

Growing community of inventors

Eindhoven, Netherlands

Jan Mulder