Abstract:
The circuit includes a clock generating means (10) for generating first and second bit synchronizing clocks. A synchronizing signal generating means (20) generates a synchronizing signal for every n continuous clocks, and a first clock window means (30) permits m units of the first bit synchronizing clocks to be passed, each time when the synchronizing signal is generated. A counter (40) counts m units of the first bit synchronizing clocks, and a second clock window means (50) permits p units of the second bit synchronizing clocks to be passed, while a shift register (60) shifts and memorizes only the bits corresponding to the p units of the second bit synchronizing clocks.
Abstract:
PURPOSE: A multi-level memory device using a resistance body is provided to adjust the size of the amorphous region of a phase change material by applying a write pulse with different pulse heights to one or more phase change materials. CONSTITUTION: A multi-level memory cell array(100) includes a plurality of multi-level memory cells in a matrix shape. The rows of the multi-level memory cells are coupled with each word-line(WL0 to WLm). The columns of the multi-level memory cells are coupled with bit-lines(BL0 to BLn). A decoder(300) provides row selection signals and column selection signals to a row selection circuit(130) and a column selection circuit(120). A read circuit(110) reads data saved in a multi-level memory cell which is selected from the multi-level memory cell array.
Abstract:
PURPOSE: A formation method of an information storage pattern is provided to improve the electrical property of a phase variation memory device by uniformly maintaining the resistance value of a memory cell. CONSTITUTION: A semiconductor substrate(10) comprises an active layer(20). An interlayer insulating layer(30) is formed on the semiconductor substrate. The interlayer insulating layer comprises an opening(35) which exposes a transistor or a diode. A bottom electrode(40) is formed in the opening of the interlayer insulating layer. The bottom electrode is formed in order to partly fill the opening of the interlayer insulating layer.
Abstract:
PURPOSE: A method of manufacturing a phase-change memory device is provided to improve thermal stability of a phase change memory device by separating a programming region contacting a first electrode from the programming region of the phase change memory. CONSTITUTION: A lower interlayer dielectric layer is formed on a substrate(100). A first electrode(205) buried into the lower interlayer dielectric layer is formed. A mold layer has a trench which is expanded along a first direction while exposing the first electrode on the lower interlayer dielectric layer. A phase change material layer is formed on a mold layer while filling the trench. A second electrode(240) on the phase change material layer and is expanded in second direction. The phase change material layer is formed by removing a mold film and the phase change material layer which is exposed to the second electrode.
Abstract:
A phase change memory device and a method for forming the same are provided to form an adhesive pattern which is made of a carbon containing material between a heater electrode and a phase change pattern for minimizing stress resulting from temperature change, thereby obtaining high bonding force of the electrode and the patterns. A phase change memory device comprises a heater electrode(206) on a substrate(200), a phase change pattern(310b), and an adhesive pattern(308b). The adhesive pattern is placed between the heater electrode and the phase change pattern and is made of a carbon containing material. An interlayer insulating layer(202) is placed on the substrate. The heater electrode is placed in an opening(204) passing through the interlayer insulating layer. A wiring(220'') is placed on the interlayer insulating layer.
Abstract:
수직하게 차례로 위치된 복수 개의 활성 영역들을 갖는 피이. 램들 및 그 형성방법들을 제공한다. 이 피이. 램들 및 그 형성방법들은 주어진 디자인 룰을 가지고 상전이막 패턴의 상 변화를 빠른 시간내 수행시킬 수 있는 방안을 제시해준다. 이를 위해서, 상기 셀 어레이 영역 내 적어도 하나의 기준 활성 영역을 한정하는 반도체 기판을 준비한다. 상기 반도체 기판과 평행하고 기준 활성 영역의 주 표면을 지나는 수직선 상에 차례로 위치해서 다른 활성 영역들을 각각 한정하는 다른 반도체 기판들을 형성한다. 그리고, 상기 기준 활성 영역의 반도체 기판 상에 하부 셀 게이트 패턴이 배치된다. 상기 다른 활성 영역들의 다른 반도체 기판들 상에 상부 셀 게이트 패턴들을 각각 형성한다. 상기 하부 및 상부 셀 게이트 패턴들의 양 측부들에 금속 노드 플러그들이 각각 위치된다. 이때에, 상기 금속 노드 플러그들은 다른 반도체 기판들을 관통하여 반도체 기판과 접촉한다. 상기 금속 노드 플러그들 중 하나는 상전이막 패턴 아래에 위치되어서 상전이막 패턴에 전기적으로 접속된다. 활성 영역, 반도체 기판, 상전이막, 게이트.
Abstract:
A dielectric region, such as a ferroelectric dielectric region of an integrated circuit capacitor, is protected by a multi-layer insulation structure including a first relatively thin insulation layer, e.g., an aluminum oxide or other metal oxide layer, and a second, thicker insulating layer, e.g., a second aluminum oxide or other metal oxide layer. Before formation of the second insulation layer, the first insulation layer and the dielectric preferably annealed, which can increase a remnant polarization of the dielectric region. The first insulation layer can serve as a hydrogen diffusion barrier during formation of the second insulation layer and other overlying structures. In this manner, degradation of the dielectric can be reduced. Devices and fabrication methods are discussed.
Abstract:
PURPOSE: A ferroelectric memory device and a fabricating method thereof are provided to prevent the degradation of a ferroelectric characteristic of a ferroelectric layer in an etching process which is performed on an upper electrode of a capacitor. CONSTITUTION: Two or more capacitor patterns including a lower electrode(33), a ferroelectric layer(35), and an upper electrode(37) connected with a contact plug(25) penetrating an interlayer dielectric(23) are formed on a substrate. An insulating layer pattern is formed to cover each sidewall of the lower electrodes(33) of the capacitor patterns and expose an upper surface of an upper electrode. A conductive layer and an oxygen barrier layer are formed on the capacitor patterns. A plate line is formed by patterning the conductive layer and the oxygen barrier layer. A spacer(83) for oxygen barrier is formed on a sidewall of the plate line. A thermal process for the substrate is performed.
Abstract:
PURPOSE: A ferroelectric memory device is provided to recover ferroelectric deterioration of a capacitor ferroelectric layer by performing a post-treatment process, and to prevent an operation error caused by an increase of contact interfacial resistance of the ferroelectric memory device by avoiding oxidation of an adhesive layer pattern between a capacitor lower electrode and a contact plug. CONSTITUTION: The ferroelectric memory device has a cell capacitor pattern in which the adhesive layer pattern(30), a lower electrode, a ferroelectric layer pattern(50) and an upper electrode(60) are sequentially formed. An oxygen barrier pattern(70) is so formed to cover only the sidewall of the cell capacitor pattern under the interface between the lower electrode and the ferroelectric layer pattern.
Abstract:
본 발명은 EMI 노이즈 발생 방지를 위한 반도체 장치의 레이아웃에 관한 것으로, 복수의 셀과, 상기 복수의 셀을 그라운드 단자에 연결시키는 복수의 그라운드 라인을 포함한다. 이 때, 상기 복수의 그라운드 라인은 상기 복수의 셀과 제 1 방향으로 연결되는 복수의 제 1 그라운드 라인과, 상기 복수의 제 1 그라운드 라인과 제 2 방향으로 연결되는 복수의 제 2 그라운드 라인을 포함한다. 이와 같은 장치에 의해서, 전류 루프를 최소화할 수 있고, 반도체 칩 내부로부터의 EMI 노이즈 발생을 방지할 수 있으며, 셋 ESD 현상을 줄일 수 있다.