Abstract:
A pressure-sensitive semi-conductor device with a Schottky barrier in which a separation space is formed underneath the insulating film covering a major surface portion of the semiconductor substrate and disposed adjacent a metal layer received in a recess in the substrate and extending through an opening in the insulating film, whereby the input pressure is applied to the metal layer. The separation space is formed by side-etching with the insulating film serving as mask.
Abstract:
In making a semiconductor device comprising a die of silicon, germanium or gallium arsenide, the bonding of the die onto a metal header (i.e., holding member) is made firmly without insertion of a conventional thin gold film therebetween, by depositing gold onto the bonding face of a slice, which is to be cut into the die, in such a manner that at least the surface of the deposited layer is gold or an alloy of gold containing small amounts of an additive.
Abstract:
A semi-conductor device, such as diode transistor, field effect transistor with a Schottky barrier, has a separation space formed underneath the insulating film covering a major surface portion of the semiconductor substrate. This separation space is disposed adjacent to a metal layer accommodated in a recess in the substrate and extending through an opening in the insulating film, so as to eliminate unreasonable reverse leakage current, by effectively insulating the Schottky barrier from the electric charge accumulation layer beneath the insulating film.
Abstract:
Disclosed is a pressure-sensitive transistor whose emitter or collector junction is formed by use of a Schottky barrier junction and wherein the current through the transistor changes in accordance with the applied pressure when pressure is applied to said junction by pressure applying means. Such a transistor is advantageous in that a high pressure-to-current conversion factor is obtained, little noise is generated at the junction, and the reverse leakage current appearing at the junction is extremely small.
Abstract:
A semiconductor device having a Schottky barrier junction formed in the bottom of a polygonal recess on a surface of a semiconductor substrate comprises an undercut in the recess beneath an insulating mask formed on the substrate, and a metal passing through the mask and extending to the bottom of the recess for forming said junction. The undercut provides an enclosed spacing encircling the junction portion of said metal and said semiconductor, thereby improving the backward breakdown voltage characteristic therein.
Abstract:
A semi-conductor device, such as diode transistor, field effect transistor with a Schottky barrier, has a separation space formed underneath the insulating film covering a major surface portion of the semiconductor substrate. This separation space is disposed adjacent to a metal layer accommodated in a recess in the substrate and extending through an opening in the insulating film, so as to eliminate unreasonable reverse leakage current, by effectively insulating the Schottky barrier from the electric charge accumulation layer beneath the insulating film.
Abstract:
In a semiconductor device with a four-layer structure having the so-called thyristor characteristic, when the control electrode for controlling its breakover voltage is constructed by the Schottky barrier and a means to apply a stress to the barrier, the breakover voltage of the said semiconductor device can be controlled by the stress. If this device is assembled in a circuit system, the circuit system can be set to either the "off" or "on" state, corresponding to the applied stress.