A portion of a layer of monocrystalline silicon on a substrate is completely oxidized through to provide islands of silicon spaced apart by the portion of silicon dioxide. Spaced apart, thin layers of semiconductor material are provided on the silicon dioxide portion. Different semiconductor components are provided within the semiconductor islands and within the thin semiconductor layers. Preferably, the upper surfaces of the silicon islands and the silicon dioxide isolating portions are substan...

An insulated gate, field effect transistor is fabricated by covering a surface of a body of doped semiconductor material with a first layer of a dielectric material covered by a second layer of a dielectric material masking layer covered by a third layer of a highly doped semiconductor material. The third layer is defined to provide a gate electrode having exposed sides, and the sides are covered with a protective thermally grown oxide layer, the masking second layer preventing the growth of the...

Information storing devices, such as read-only-memories, comprise an array of semiconductor components on a substrate, each component being connected into the array by a fuse. A continuous electrically resistive element is disposed on the substrate, the fuses being disposed on the element. To open-circuit selected ones of the fuses, a current is passed through the element to heat all the fuses to a temperature approaching but less than the melting point of the fuses, and a current is passed thro...

Information storing devices, such as read-only-memories, comprise an array of semiconductor components on a substrate, each component being connected into the array by first and second conductors, the first conductor being of a material well suited as an electrical conductor. e.g., aluminum, and the other well suited as a fuse, e.g., a highly doped semiconductor material. Preferably, the second conductor is disposed on a thermal insulating layer.

Information-storing devices, such as read-only-memories, comprise an array of semiconductor components on a substrate, each component being connected into the array by a fusible element. To disconnect selected ones of the components from the array, to store information, two sources of heat are applied to the fusible elements connected to the selected components to open-circuit the elements. One of the sources comprises the passage of current through the selected elements. The other comprises a g...