摘要:
The present invention is directed to methods for inhibition of histone acetyltransferases using glycosaminoglycans. The invention is further directed to methods for treating disorders associated with hyperacetylation by administration of glycosaminoglycans to a patient in need thereof. In one preferred embodiment, the glycosaminoglycan is a heparin or heparan sulfate oligosaccharide. Studies show that removal of sulfate residues from the O-positions of either the uronic acid or the glucosamine did not eliminate the inhibitory activity of heparan sulfate. Since a majority of heparan sulfate binding proteins appear to require O-sulfation, molecules without certain O-sulfations can be used to inhibit HATs while not interacting with most known heparin-binding proteins. In addition, specific sequences of heparin/heparan sulfate can be used to specifically inhibit various HATs.
摘要:
A method of programming a dual cell memory device having a first charge storing cell and second charge storing cell. The first charge storing cell can be pre-read to determine if the first charge storing cell stores an amount of charge to increase a threshold voltage of the memory device over a specified threshold voltage. If not, the second charge storing cell can be programmed with a standard program pulse. If so, the second charge storing cell can be programed with a modified program pulse.
摘要:
The present invention relates generally to antifugal compositions. In an embodiment, the antifungal compositions are effective for application to nails and surrounding skin, and comprise at least one volatile solvent, at least one film forming substance, and at least one pyrimidone derivative of formula I, such as albaconazole. These compositions are capable of treating an infection caused by fungi, such as onychomychosis.
摘要:
A method of determining charge loss activation for a memory array. Memory arrays are programmed with a pattern for testing charge loss. Then, respective bake times are calculated for the memory arrays to experience a given amount of charge loss at their respective bake temperatures. Then, charge loss activation energy is calculated, based on the respective bake times. In one version, the memory arrays are cycled by repeatedly erasing and reprogramming them before baking. In another embodiment, various regions of the memory arrays are programmed to a plurality of distinct delta threshold voltages before baking.
摘要:
A method of programming a multi-level, dual cell memory device. The method includes independently programming a first charge storing cell and a second charge storing cell to respective data states, the data states selected from a blank program level or one of a plurality of charged program levels. Also disclosed is a method of reading the multi-level, dual cell memory device using a plurality of reference currents.
摘要:
A method of erasing a flash electrically erasable read only memory (EEPROM) device composed of a plurality of memory cells includes pre-programming the plurality of memory cells, applying an erase pulse to the plurality of memory cells followed by an erase verification. The erase verification is followed by soft programming any memory cells having a threshold voltage below a predetermined minimum level and applying a positive gate stress to the plurality of memory cells. The erase method prevents overerasing and provides a tightened threshold voltage distribution.
摘要:
A method of programming a dual cell memory device having a first charge storing cell and a second charge storing cell. The method can include applying an initial program pulse to the memory device; comparing the threshold voltage of the memory device with a verify threshold voltage; and if the threshold voltage of the memory device is less than the verify threshold voltage, applying a second program pulse to the memory device during which at least one condition of the second program pulse is modified from the initial program pulse.
摘要:
In a semiconductor manufacturing process for manufacturing memory devices a method of screening hot temperature programmability rejects in memory devices during wafer sort at room temperature that would be rejected at class test at high temperature. All cells in the memory device are subjected to a first sequence of programming pulses at a voltage lower than the standard programming voltage. The number of pulses in the first sequence of programming pulses is from 1-5. Those die that verify as having been successfully programmed are passed. Those die that do not verify as having been programmed are subjected to a second sequence of programming pulses at a voltage lower than the standard programming voltage. The number of pulses in the second sequence of programming pulses is from 10 to 15 pulses. Those that verify as being programmed are marked as good and those that do not are repaired and retested.
摘要:
In a semiconductor manufacturing process for manufacturing memory devices a method of screening hot temperature erase rejects in memory devices during wafer sort at room temperature that would be rejected at class test at high temperature. Selected cells of the memory device are subjected to a first sequence of erasure pulses at a high voltage until the selected cells are verified erased or until a first maximum number of erasure pulses has been reached, recording the number of pulses required to erase the selected cells, reading and repairing any defective memory cells, and subjecting all cells to a second sequence of erasure pulses until all cells are verified erased or until a maximum number of pulses has been reached wherein the second maximum number is a multiple of the recorded number.
摘要:
The present invention relates generally to antifugal compositions. In an embodiment, the antifungal compositions are effective for application to nails and surrounding skin, and comprise at least one volatile solvent, at least one film forming substance, and at least one pyrimidone derivative of formula I, such as albaconazole. These compositions are capable of treating an infection caused by fungi, such as onychomychosis.