Abstract:
Sr-Ti-O계 막의 성막 방법은 처리용기내에 Ru막이 형성된 기판을 배치하고, 기체상의 Ti 원료와, 기체상의 Sr 원료와, 기체상의 산화제를 상기 처리용기내에 도입해서 Ru막 상에 두께 10㎚ 이하의 제 1 Sr-Ti-O계 막을 성막하는 것과, 제 1 Sr-Ti-O계 막을 어닐해서 결정화시키는 것과, 제 1 Sr-Ti-O계 막의 위에, 기체상의 Ti 원료와, 기체상의 Sr 원료와, 기체상의 산화제를 처리용기내에 도입하고 그 위에 제 2 Sr-Ti-O계 막을 성막하는 것과, 제 2 Sr-Ti-O계 막을 어닐해서 결정화시키는 것을 포함한다.
Abstract:
PURPOSE: A solid-state memory device, a data processing system, and a data processing device thereof are provided to store information by reversibly diversifying a crystalline state. CONSTITUTION: A semiconductor memory device(10) includes an address latch circuit(21) including an address signal(ADD) and a command decoder(22) generating an internal command(ICMD) after decoding a command(CMD). A second interlayer insulating layer has a second through-hole. A recording circuit(26) comprises a reset circuit and a set circuit. A first interlayer insulating layer has a first through-hole.
Abstract:
This disclosure provides (a) methods of making an oxide layer (e.g., a dielectric layer) based on yttrium and titanium, to have a high dielectric constant and low leakage characteristic and (b) related devices and structures. An oxide layer having both yttrium and titanium may be fabricated either as an amorphous oxide or as an alternating series of monolayers. In several embodiments, the oxide is characterized by a yttrium contribution to total metal that is specifically controlled. The oxide layer can be produced as the result of a reactive process, if desired, via either a PVD process or, alternatively, via an atomic layer deposition process that employs specific precursor materials to allow for a common process temperature window for both titanium and yttrium reactions.
Abstract:
This disclosure provides a method of fabricating a semiconductor stack and associated device such as a capacitor and DRAM cell. In particular, a bottom electrode upon which a dielectric layer is to be grown may have a ruthenium-based surface. Lattice matching of the ruthenium surface with the dielectric layer (e.g., titanium oxide, strontium titanate or barium strontium titanate) helps promote the growth of rutile-phase titanium oxide, thereby leading to higher dielectric constant and lower effective oxide thickness. The ruthenium-based material also provides a high work function material, leading to lower leakage. To mitigate nucleation delay associated with the use of ruthenium, an adherence or glue layer based in titanium may be employed. A pretreatment process may be further employed so as to increase effective capacitor plate area, and thus promote even further improvements in dielectric constant and effective oxide thickness ("EOT").
Abstract:
This disclosure provides (a) methods of making an oxide layer (e.g., a dielectric layer) based on yttrium and titanium, to have a high dielectric constant and low leakage characteristic and (b) related devices and structures. An oxide layer having both yttrium and titanium may be fabricated either as an amorphous oxide or as an alternating series of monolayers. In several embodiments, the oxide is characterized by a yttrium contribution to total metal that is specifically controlled. The oxide layer can be produced as the result of a reactive process, if desired, via either a PVD process or, alternatively, via an atomic layer deposition process that employs specific precursor materials to allow for a common process temperature window for both titanium and yttrium reactions.
Abstract:
Strombegrenzungsschaltung mit: einem Strombegrenzungselement zur Begrenzung eines Ausgangsstrompegels innerhalb eines vorbestimmten Bereichs eines Begrenzungsstroms und mit einem ersten PMOS-Transistor, an dessen Source eine vorbestimmte Spannung angelegt ist, und mit einem Drain, durch den der Ausgangsstrom gespeist wird; und einer Gate-Spannungserzeugungsschaltung zum Erzeugen einer Gate-Spannung durch eine Rückkopplungssteuerung, so dass die Der Gate-Spannung des ersten PMOS-Transistors mit einer Schwellwertspannung eines zweiten PMOS-Transistors übereinstimmt, der annähernd die gleiche Charakteristik wie der erste PMOS-Transistor hat, in einem Zustand, bei dem durch den zweiten PMOS-Transistor ein vorbestimmter Strom fließt.
Abstract:
A delay circuit includes a first delay line circuit having a plurality of stages of delay units, a second delay line circuit having a plurality of stages of delay units, a plurality of transfer circuits provided in association with respective stages of the delay units of the first delay line circuit, the transfer circuits controlling the transfer of the outputs of the delay units of the first delay line circuit to associated stages of the delay units of the second delay line circuit. The delay units of respective stages of the first delay line circuit inverting input signals. Each stage delay unit of the second delay line circuit includes a logic circuit receiving an output signal of the transfer circuit associated with the delay unit in question and an output signal of a preceding stage to send an output signal to a following stage. The duty ratio is rendered variable by independently selecting the rising edge of the input signal and a propagation path of the falling edge.
Abstract:
A semiconductor memory device (50) having a boosted potential generation circuit is provided. The boosted potential generation circuit may provide charge to a boosted potential node when a word line (11) is to be activated. The boosted potential generation circuit may include a boosting control circuit (5), a boosted potential detection circuit (6), an oscillator circuit (7), and a booster circuit (8). The boosting control circuit (5) may generate a boosting control signal when a command decoder (1) indicates that a word line may be activated. In response to the boosting control signal, the boosted potential detection circuit (6) may enable the oscillator circuit (7) so that booster circuit (8) may transfer charge to the boosted potential node. This may allow the boosted potential node to have adequate charge that may be provided to the word line when activated.
Abstract:
A memory module comprises a stab resistor between a pin and one end of a bus. A plurality of memory chips is connected to the bus between both ends thereof. A terminating resistor is connected to the other end of the bus. Stab resistance Rs of the stab resistor and terminating resistance Rterm of the terminating resistor are given by: Rs=(N-1)xZeffdimm/N, and Rterm=Zeffdimm where N represents the number of the memory modules in a memory system; and Zeffdimm, effective impedance of a memory chip arrangement portion consisting of the bus and the memory chips. In the memory system, the memory modules are connected to a memory controller on a motherboard in a stab connection style. Wiring impedance Zmb of the motherboard is given by: Zmb=(2N-1)xZeffdimm/N 2 .
Abstract:
According to one disclosed embodiment, a synchronous semiconductor storage device (100) includes a circuit for accomplishing mode setting operations after a test mode is entered, where the test mode includes a higher frequency internal clock. A synchronous semiconductor storage device (100) generates a first internal synchronous clock signal ICLK which can be used to enter mode setting values to a mode register setting circuit (122). At the same time, an external synchronous signal CSB can be applied to generate a second internal synchronous clock signal CSCLK. The ICLK and CSCLK values can be used to generate a higher frequency clock ICLK' in a test mode. The ICLK' signal can be applied to internal circuits (124) allowing such circuits to operate at a higher speed. The ICLK' signal is not applied to the mode register setting circuit (122), thereby avoiding the possible latching of incorrect mode setting values by the mode register setting circuit (122).