摘要:
Systems, methods, and/or devices that facilitate accessing data from memory are presented. An adaptive detection component can be employed to reduce or minimize detection error and distinguish information stored in memory cells during read operations. A decoder component can include the adaptive detection component, which can employ an adaptive Linde-Buzo-Gray (LBG) algorithm. The decoder component can receive information associated with a current level from a memory location during a read operation, and can analyze and process such information. The adaptive detection component can receive the processed information and, along with other information, can process such information using the iterative LBG algorithm until reconstruction levels and corresponding threshold levels are determined. Such reconstruction levels and/or threshold levels can be compared to the value associated with the information read from the memory location to determine the data value of the data in the memory location.
摘要:
One aspect of the present invention relates to a method of forming a non-volatile semiconductor memory device, involving the sequential or non-sequential steps of forming a charge trapping dielectric over a substrate, the substrate having a core region and a periphery region; removing at least a portion of the charge trapping dielectric in the periphery region; forming a gate dielectric in the periphery region; forming buried bitlines in the core region; and forming gates in the core region and the periphery region.
摘要:
The present invention discloses methods and systems for generating a bias voltage during an Automatic Program Disturb Erase Verify (APDEV) operation in a memory device. During the APDEV operation, a predetermined supply voltage is generated by a regulated power supply. The predetermined supply voltage is directed to a temperature-compensated bias generator circuit. The temperature-compensated bias generator circuit is activated to generate the bias voltage based on the operating temperature of the memory device.
摘要:
A non-volatile memory having a non-volatile memory array arranged as a plurality of sectors each containing an array of non-volatile memory cells. The non-volatile memory includes independent read and write paths and selection circuitry for each sector that enables a read operation from one of the sectors during a program or erase operation to one of the other sectors.
摘要:
A process for discharging a floating gate semiconductor device formed in a semiconductor substrate, the device having a first active region, a second active region, a charge holding region, and a channel between the first and second active regions, the channel having a length defined by a distance below the charge holding region between the first and second active regions. The process comprises the steps of: applying a first positive voltage of about 4-8 volts to the first active region; applying a second voltage in the range of about 0.5-3 volts to the second active region; applying a third voltage in the range of minus 8 volts to the charge holding region; and coupling the substrate to ground. The first active region may comprise either a source or a drain region of a MOSFET, and the second active region may comprise a source region or a drain region of a MOSFET. In a further aspect an array of floating gate transistors, each transistor comprising a source, drain, gate and floating gate, each floating gate including an electric charge; and control logic coupled to the transistors, for selectively addressing the transistors is disclosed. In the apparatus, to discharge the floating gates of each transistor in the array: each source is coupled in common to a first voltage; each drain is coupled in common to a second voltage lower than the first voltage; the substrate is coupled to ground; and each floating gate is coupled to a negative voltage.
摘要:
An improved redundancy architecture is provided for an array of flash EEPROM cells which permit repair of defective columns of memory cells in the array with redundant columns of memory cells on a sector-by-sector basis. The redundancy circuitry includes a plurality of sector-based redundancy blocks (2-8) each having redundant columns of memory cells extending through the plurality of sectors. Sector selection transistors (Q1,Q2) are provided for dividing the redundant columns into different segments, each residing in at least one of the plurality of sectors and for isolating the different segments so as to allow independent use from other segments in the same redundant column in repairing defective columns in the corresponding ones of the plurality of sectors. Addressable storage circuitry (314a,314b) is used for storing sector-based redundancy column addresses, each defining a column address containing the defective column of memory cells in the plurality of sectors in association with one of the different redundant column segments to be used in repairing the defective column.
摘要:
Techniques for providing a semiconductor memory device are disclosed. In one particular embodiment, the techniques may be realized as a semiconductor memory device including a plurality of memory cells arranged in an array of rows and columns. Each memory cell may include a first region coupled to a source line, a second region coupled to a bit line, and a body region capacitively coupled to at least one word line via a tunneling insulating layer and disposed between the first region and the second region.
摘要:
A memory device can include at least one cathode formed in first opening of a first insulating layer; at least one anode formed in a second opening of second insulating layer, the second insulating layer being a different vertical layer than the first insulating layer; and a memory layer comprising an ion conductor layer extending laterally between the at least one anode and cathode on the first insulating layer, the ion conductor layer having a thickness in the vertical direction less than a depth of the first opening.
摘要:
Techniques for providing a semiconductor memory device are disclosed. In one particular embodiment, the techniques may be realized as a semiconductor memory device including a plurality of memory cells arranged in an array of rows and columns. Each memory cell may include a first region coupled to a source line, a second region coupled to a bit line, and a body region capacitively coupled to at least one word line via a tunneling insulating layer and disposed between the first region and the second region.
摘要:
Improving memory retention properties of a polymer memory cell are disclosed. The methods include providing a semiconducting polymer layer containing at least one organic semiconductor and at least one of a carrier ion oxidation preventer and an electrode oxidation preventer. The oxidation preventers may contain at least one of 1) an oxygen scavenger, 2) a polymer with oxidizable side-chain groups which can be preferentially oxidized over the carrier ions/electrodes, and 3) an oxidizable molecule that can be preferentially oxidized over the carrier ions/electrodes.