摘要:
A method of fabricating a phase shift mask is provided in which light shield film patterns for setting a phase shift region and a phase non-shift region are simultaneously formed on a substrate. A groove is formed in the substrate set as the phase shift region. The light shield film pattern, which contacts the groove and is formed on a region of the substrate set as the phase non-shift region, is removed. A phase shift layer can be formed between the substrate and the light shield film pattern. In this case, regions set by the light shield film pattern become opposite to when the phase shift layer is not formed. That is, a phase shift region is changed into a phase non-shift region, and the phase non-shift region is changed into the phase shift region. As described above, the phase shift region and the phase non-shift region are simultaneously set when the light shield film pattern is formed, thus preventing the position of the phase shift or non-shift region from being shifted due to sequential formation of the phase shift and non-shift regions.
摘要:
A photo mask of a semiconductor device includes a transmission preventing layer formed of a molybdenum alloy, which is a solid solution of a metal atom such as chrome in molybdenum, on a light transmitting substrate. Also, the molybdenum alloy may be a molybdenum vanadium alloy, a molybdenum niobium alloy, a molybdenum tantalum alloy, or a molybdenum tungsten alloy, which is a solid solution of vanadium, niobium, tantalum, or tungsten in molybdenum, respectively. The photo mask provides high resolution during a photolithography process by obtaining a thinner transmission preventing layer.
摘要:
A housing type golf simulation apparatus and features the housing that the internal space is available having front, rear, upper and left/right side; monitor installation section which is provided backward in the rear side direction from the said front housing so that the monitor can be seated in the said front housing; golf simulation computer which is provided in the said internal space; and the monitor to be seated in the said monitor installation section. Thus, it is advantageous to implement various additional functions in the housing while installing, managing and moving the entire golf simulation apparatus in an integrated module.
摘要:
A semiconductor package of a package on package structure reducing an overall thickness of the package and simplifying design complexity of wiring paths is provided. The package includes a first package including a first substrate and a first semiconductor chip portion mounted thereon, a second package disposed on the first package and including a second substrate and a second semiconductor chip portion mounted thereon, and a connection member connecting the first and second substrates. The second semiconductor chip portion includes at least one semiconductor chip including a group of chip pads corresponding to one channel, and the group of chip pads is concentrated on a first edge of the semiconductor chip. An intellectual property core corresponding to the one channel is formed on an edge of the first semiconductor chip portion and the IP core corresponds to the edge on which the group of chip pads is concentrated.
摘要:
A package stack structure may an upper package include an upper package substrate having a first edge and a second edge opposite to the first edge. The upper package substrate has a first region arranged near the first edge and a second region arranged near the second edge. A first upper semiconductor device is mounted on the upper package substrate. The package stack structure may also include a lower package having a lower package substrate and a lower semiconductor device. The lower package is connected to the upper package through a plurality of inter-package connectors. The plurality of the inter-package connectors may include first inter-package connectors configured to transmit data signals; second inter-package connectors configured to transmit address/control signals; third inter-package connectors configured to provide a supply voltage for an address/control circuit; and fourth inter-package connectors configured to provide a supply voltage for a data circuit.
摘要:
An internal clock signal generation circuit is capable of controlling a unit delay time depending on a frequency of an external clock signal. The internal clock signal generation circuit includes an internal clock signal generation unit configured to generate an internal clock signal corresponding to a plurality of unit delay cells enabled in response to a control signal, and a unit delay time control unit configured to detect a frequency of an external clock signal and control a unit delay time of each of the plurality of unit delay cells.
摘要:
A semiconductor device, a semiconductor package, and an electronic device are provided. The electronic device includes a first semiconductor package disposed on a circuit substrate. A second semiconductor package is provided on the circuit substrate and spaced apart from the first semiconductor package. An insulating electromagnetic shielding structure is provided on the top and the lateral surfaces of the first semiconductor package. A conductive electromagnetic shielding structure is provided on the circuit substrate to cover the first and second semiconductor packages and the insulating electromagnetic shielding structure.
摘要:
A multi-chip package may include a package substrate, an interposer chip, a first semiconductor chip, a thermal dissipation structure and a second semiconductor chip. The interposer chip may be mounted on the package substrate. The first semiconductor chip may be mounted on the interposer chip. The first semiconductor chip may have a size smaller than that of the interposer chip. The thermal dissipation structure may be arranged on the interposer chip to surround the first semiconductor chip. The thermal dissipation structure may transfer heat in the first semiconductor chip to the interposer chip. The second semiconductor chip may be mounted on the first semiconductor chip. Thus, the heat in the first semiconductor chip may be effectively transferred to the interposer chip through the thermal dissipation line.
摘要:
A semiconductor package includes a substrate in which a plurality of wires are formed; at least one semiconductor chip electrically connected to portions of the plurality of wires; and a shielding can mounted on the substrate, surrounding the at least one semiconductor chip, electrically connected to at least one wire of the plurality of wires and including a soft magnetic material. The semiconductor package can prevent or substantially reduce electromagnetic interference (EMI).
摘要:
A semiconductor device includes a buffer unit configured to include first and second buffers, connected to each other in a cross-coupled manner, to receive a reference voltage and to buffer an input signal applied to the first and second buffers based on the reference voltage to drive an output terminal with a current-driving capacity; and a drive power adjustor configured to adjust the current-driving capacity depending on a level of a power supply voltage applied to the buffering unit.