This disclosure relates to the formation of stable semiconductor devices by using a noble metal-silicon-oxygen alloy as a passivation type layer on a silicon dioxide layer located on one surface of a silicon substrate or device. The noble metal-silicon-oxygen alloy is deposited onto the semiconductor substrate surface during an anodization process preferably using a hydrogen peroxide solution containing from about 30 percent to about 0.1 percent hydrogen peroxide by volume in water. The anodizat...

The disclosure herein pertains to methods for fabricating planar, discrete or monolithic arrays of semiconductor devices, particularly light-emitting diodes and arrays thereof. The disclosure more particularly concerns diffusion processes to form controlled regions of P-type conductivity in N-type conductivity semiconductors.

To provide a uniform composition of the liquid crystal material throughout the device, the interior surfaces of the device are coated or contacted, prior to filling with the liquid crystal material, with certain additive materials normally contained in the liquid crystal material to improve the device performance.

During device filling, as by flowing the liquid crystal material through ports opening into opposite ends of the device, the walls of the device are caused to alternately outwardly bow and inwardly collapse to cause variations in the paths of flow of the material through the device.

A jigging tool and method for simultaneously bonding a plurality of semiconductor dice on a corresponding plurality of mounting bases and to a plurality of electrical leads in strip form while accurately maintaining such plural structures in a fixed position. Pivoted weight means are disposed on a jigging tool for forcing the electrical lead strip against the corresponding dice and the mounting base strip and the tool is mounted at an angle such that gravity forces the dice and the lead strip in...

A continuous elongate flexible sheet bearing erect abrasive flaps, each held by an individual island of binder that is adherently bonded to the flexible support, can be formed into an abrasive flap wheel, endless belts, etc. The article is prepared by applying liquid binder to the sheet, inserting the flaps, isolating the islands, and hardening the binder.

A machine for the fabrication of cotton swabs embodying a rotating carrier or conveyor drum provided with circumferential cross slots which individually receive sticks from a vibrated hopper. The feed mechanism at the terminus of the hopper feed is formed to coact with a complementary member to assure the insertion of only one stick into each peripheral slot and to temporarily restrain the succeeding stick. The sticks are engaged by a rotating friction wheel which imparts longitudinal axial spin...

An economical heat pipe wick fabrication technique that yields wicks with fine pores at the liquid/vapor interface and unrestricted fluid flow beneath this interface. The resulting wick may be employed with either high or low thermal conductivity fluids.

There is described an efficient technique for simultaneously providing a large plurality of magnetic head cores with bonded gaps having reinforcing fillets.

An aeration system wherein a plastic pipe is provided with porous ceramic inserts to release a controlled volume of gas from the pipe. The pipe also has a series of porous ceramic dewatering discs for drainage of liquid from the pipe; and A method of installing porous ceramic elements in a pipe wherein slots are formed in the pipe and dimensioned to tightly grip the elements. The slots are coated with a liquid cement to provide lubrication for insertion of the discs, and additional mastic is the...