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| Number | Title | Issue Date |
| 5059554 | Method for forming polycrystalline silicon contacts A method for fabricating integrated circuits is used to improve contacts between polycrystalline interconnect and underlying polycrystalline or monocrystalline silicon regions. After contact openings are formed, a layer of titanium is deposited over the i... | 10/22/1991 |
| 5057463 | Thin oxide structure and method A method for forming a thin oxide layer structure includes the step of first growing a dry oxide layer. A layer grown in steam and chlorine is formed next, followed by a final dry oxide layer. An anneal step in an inert gas further improves the quality of... | 10/15/1991 |
| 5032780 | Programmable stepper motor controller A motor controller provides a digital monostable circuit which generates a control signal indicating whether a field coil within a motor should be turned on or off. Two registers are provided within the digital monostable to store values indicating a fixe... | 07/16/1991 |
| 5031152 | Test circuit for non-volatile storage cell A latch is provided in association with each non-volatile memory element used to store configuration information on a programmable logic device. In normal use, configuration information is written to the non-volatile memory elements in the usual manner. H... | 07/09/1991 |
| 5027011 | Input row drivers for programmable logic devices Multi-function input pins in a programmable logic device are connected to select circuitry which is programmed at device program time. Output signals generated by one or more output logic macrocells are also connected to such select circuitry. The select ... | 06/25/1991 |
| 5006481 | Method of making a stacked capacitor DRAM cell A capacitor is formed for use with a DRAM storage cell by lying down alternating layers of polycrystalline silicon for the storage node and the ground plate. A buried bit line allows the capacitor area to cover a significant fraction of the cell layout ar... | 04/09/1991 |
| 4992987 | Battery package for integrated circuits A battery package for an integrated circuit having a container member with a floor and side walls; a pair of grooves through the inside surface of the side walls. A battery is disposed within the container, connected to two generally planar, electrically ... | 02/12/1991 |
| 4983857 | Power-up reset circuit A circuit for generating a reset signal on chip power-up includes two field effect devices connected between a power supply voltage and the input to an inverter. A capacitor is connected between the inverter input and the low supply voltage. Current flows... | 01/08/1991 |
| 4978637 | Local interconnect process for integrated circuits A silicide layer, to improve conductivity, is formed over a first layer of polycrystalline silicon, followed by a second layer of polycrystalline silicon. This structure is then patterned to form gate regions over active areas. A layer of metal silicide i... | 12/18/1990 |
| 4975601 | User-writable random access memory logic block for programmable logic devices A standard logic block, or macrocell, is provided for use on programmable logic devices. The macrocell uses RAM to perform logic functions, and further includes circuitry which allows writing of data to the RAM during use. Each logic block can be configur... | 12/04/1990 |
| 4915565 | Manipulation and handling of integrated circuit dice An apparatus for inverting and handling integrated circuit dice employs rotating apparatus for rotating a chip carrier by 180 degrees to invert and transfer dice from one set of receptacles to another; together with an apparatus for precisely aligning dic... | 04/10/1990 |
