Abstract:
The invention relates to the formation of arrays of thin film transistors (TFT's) on silicon substrates and the dicing and tiling of such substrates for transfer to a common module body. TFT's activate display electrodes formed adjacent the transistors after the tiles have been transferred.
Abstract:
The invention relates to device processing, packaging and interconnects that will yield integrated electronic circuitry of higher density and complexity than can be obtained by using conventional multi-chip modules. Processes include the formation of complex multi-function circuitry on common module substrates using circuit tiles of silicon thin-films which are transferred, interconnected and packaged. Circuit modules using integrated transfer/interconnect processes compatible with extremely high density and complexity provide large-area active-matrix displays with on-board drivers and logic in a complete glass-based modules. Other applications are contemplated, such as, displays, microprocessor and memory devices, and communication circuits with optical input and output.
Abstract:
A multi-layered structure is fabricated in which a microprocessor is configured in different layers and interconnected vertically through insulating layers which separate each circuit layer of the structure. Each circuit layer can be fabricated in a separate wafer or thin film material and then transferred onto the layered structure and interconnected.
Abstract:
A semiconductor fabrication method improves the voltage characteristic of floating-body MOSFETs by creating recombination centers near the source-body junction of the device. A MOSFET is fabricated through the passivation oxidation stage, and a photolithography step is used to expose the source region. Implantation is then performed using one of two types of material. A first type creates electron traps of predetermined energy in the vicinity of the source-body junction. A second type creates defects in the crystalline structure of the semiconductor material. Both implantation types create recombination centers in the material. This allows the discharge through the source-body junction of charges built up in the body region.
Abstract:
A junction field effect transistor formed on insulator substrates particularly oxide substrates and having a polysilicon vertical control gate region formed of a cross member and two end members orthogonal thereto. The vertical control gate is formed over an n-channel in a Si island, the n-channel is located beneath the cross member, with p.sup.+ junction gate regions laterally disposed on either side of the n-channel and n.sup.+ drain and gate regions laterally orthogonal thereto in Si island.
Abstract:
The present invention utilizes epitaxial lift-off in which a sacrificial layer is included in the epitaxial growth between the substrate and a thin film III-V compound solar cell. To provide support for the thin film III-V compound solar cell in absence of the substrate, a backing layer is applied to a surface of the thin film III-V compound solar cell before it is separated from the substrate. To separate the thin film III-V compound solar cell from the substrate, the sacrificial layer is removed as part of the epitaxial lift-off. Once the substrate is separated from the thin film III-V compound solar cell, the substrate may then be reused in the formation of another thin film III-V compound solar cell.
Abstract:
An active matrix color crystal display has an active matrix circuit, a counterelectrode panel and an interposed layer of liquid crystal. The active matrix display is located in a portable microdisplay system. The image is written to the the display therein causing the liquid crystal to move to a specific image position. A light source is flashed to illuminate the display. The pixel electrodes are set to a specific value to cause the liquid crystal to move towards a desired position. The process of writing, flashing, and setting the electrode intensity value to reorient the liquid crystal to produce an image is repeated. Portable system can include a digital camera, cellular telephone, camcorder, heads up display, instant print camera, pager,
Abstract:
The invention relates to the formation of arrays of thin film transistors (TFT's) on silicon substrates and the dicing and tiling of such substrates for transfer to a common module body. TFT's activate display electrodes formed adjacent the transistors after the tiles have been transferred.
Abstract:
A multi-layered structure is fabricated in which a microprocessor is configured in different layers and interconnected vertically through insulating layers which separate each circuit layer of the structure. Each circuit layer can be fabricated in a separate wafer or thin film material and then transferred onto the layered structure and interconnected.
Abstract:
The invention relates to the formation of arrays of thin film transistors (TFT's) on silicon substrates and the dicing and tiling of such substrates for transfer to a common module body. TFT's activate display electrodes formed adjacent the transistors after the tiles have been transferred.