摘要:
An FeRAM memory array wherein the plate lines run in the direction of word lines is described that provides a reduced plate line resistance in arrays having a common plate line connection. The lower plate line resistance reduces the magnitude of negative spikes on the plate line to reduce the potential for FeCap depolarization. Two or more plate lines of a plurality of columns of memory cells are interconnected along a bit line direction. Some or all of the plate lines of one or more columns of dummy memory cells may also be interconnected to reduce the plate line resistance and minimize any increase in the bit line capacitance for the active cells of the array. The improved FeRAM array provides a reduced data error rate, particularly at fast memory cycle times.
摘要:
Methods (50, 70) and ferroelectric devices (102) are presented, in which pulses (113) are selectively applied to platelines (PL) of one or more non-selected ferroelectric memory cells (106) during memory access operations to mitigate cell storage node disturbances.
摘要:
A memory circuit and method to reduce wordline coupling is disclosed. The circuit includes a plurality of memory cells arranged in rows (702, 704, and 706) and columns (750, 752). A first conductor (710, 850) is coupled to a plurality of the rows (702, 704, and 706) of memory cells. A first transistor (810) has a current path coupled between a voltage supply terminal (800) and the first conductor (850) and a control terminal coupled to receive a first control signal (PLV). A second transistor (820) has a current path coupled between the voltage supply terminal and the first conductor and a control terminal coupled to receive a second control signal (PLW).
摘要:
Systems and methods fatigue a ferroelectric memory device. Within a single cycle, a group of selected ferroelectric memory cells is fatigued by reading a first logical value from the cells while also writing a second logical value to the memory cells. The first logical value is temporarily stored into latches of sense amplifiers associated with the selected memory cells in order to decipher logical values. Subsequently, the first logical value is written back to the ferroelectric memory cells and a cycle of the fatigue operation is ended.
摘要:
A photocurable composition, including (a) a photocurable monomer, e.g. a cationically curable monomer and/or a radically curable monomer; (b) reactive particles comprising a crosslinked elastomeric core, e.g. made of polysiloxane material, and a shell of reactive groups on an outer surface of the core, wherein the reactive groups comprise epoxy groups, ethylenically unsaturated groups, or hydroxy groups; and (c) an appropriate photoinitiator, e.g. a radical photoinitiator; and a cationic photoinitiator. A method of making a 3-D object from such a composition and a 3-D object made by the method are also provided. The cured composition generally has a smooth surface. The use of the reactive particles makes the composition more stable and the particles do not readily separate out.
摘要:
A photocurable composition, including (a) a cationically curable monomer; (b) a radically curable monomer; (c) reactive particles comprising a crosslinked polysiloxane core and a shell of reactive groups on an outer surface of the core, wherein the reactive groups comprise epoxy groups, ethylenically unsaturated groups, or hydroxy groups; (d) a radical photoinitiator; and (e) a cationic photoinitiator. A method of making a 3-D object from such a composition. A 3-D object made by the method.
摘要:
The present invention facilitates scaling of memory devices and operation thereof by employing a set associative repair cache system to correct or repair identified faulty memory cells. A repair cache region router 602 compares a repair region portion of a memory address to repair cache regions to identify a matching repair cache region. Then, a local repair location router 603 compares a repair address portion of the memory address to a local repair location addresses particular to the matching repair cache region to identify a matching local repair address. If a matching local repair address is identified, a repair component 606 provides access to a repair data location according to the matching local repair address and the matching repair cache region. Otherwise, a main memory 604 provides access to a memory location according to the memory address. Other systems and methods are disclosed.
摘要:
The present invention provides a method and apparatus for separating air from a fluid, such as syrup, as the fluid enters a first chamber of a system; passing the fluid from the first chamber to a second chamber via a first device; passing the air from the first chamber to the second chamber via a second device so as to reintroduce the air back into the fluid and form a new fluid mixture having more uniform air bubbles; and discharging the new fluid out of the system.
摘要:
A photocurable composition comprising cationically curable compound, an acrylate-containing compound; a hydroxyl-containing compound; a cationic photoinitiator; and a free radical photoinitiator; wherein said composition has less than 0.54 equivalents of cationically curable groups, less than 0.10 equivalents of acrylate groups and less than 0.10 equivalents of hydroxyl 0groups per 100 grams of said composition.
摘要:
An FeRAM memory array wherein the plate lines run in the direction of word lines is described that provides a reduced plate line resistance in arrays having a common plate line connection. The lower plate line resistance reduces the magnitude of negative spikes on the plate line to reduce the potential for FeCap depolarization. Two or more plate lines of a plurality of columns of memory cells are interconnected along a bit line direction. Some or all of the plate lines of one or more columns of dummy memory cells may also be interconnected to reduce the plate line resistance and minimize any increase in the bit line capacitance for the active cells of the array. The improved FeRAM array provides a reduced data error rate, particularly at fast memory cycle times.