摘要:
Provided are photomask registration errors of which have been corrected and a method of correcting the registration errors of a photomask. The photomask includes a photomask substrate, an optical pattern formed on one surface of the photomask substrate, and a plurality of stress generation portions formed in the photomask substrate. A method of correcting the registration errors of a photomask includes the steps of forming an optical pattern on a photomask substrate, measuring the registration errors of the optical pattern, and forming a plurality of stress generation portions in the photomask substrate so that the stress generation portions correspond to the measured registration errors.
摘要:
Provided are photomask registration errors of which have been corrected and a method of correcting the registration errors of a photomask. The photomask includes a photomask substrate, an optical pattern formed on one surface of the photomask substrate, and a plurality of stress generation portions formed in the photomask substrate. A method of correcting the registration errors of a photomask includes the steps of forming an optical pattern on a photomask substrate, measuring the registration errors of the optical pattern, and forming a plurality of stress generation portions in the photomask substrate so that the stress generation portions correspond to the measured registration errors.
摘要:
A data storage device includes a storage medium and a controller circuit configured to be coupled to an external host to provide an interface between the external host and the storage medium, the controller circuit configured to detect a virus carried by a data file transferred to and/or stored in the storage medium. The controller circuit may be further configured to cure the detected virus.
摘要:
A pattern forming method includes providing a first mask with a first aperture, forming a first transfer pattern on a resist by irradiating a first electron beam through the first aperture, the first transfer pattern extending in a first direction and having a boundary along a circumference thereof, and the first electron beam having a cross section of a first square when emerging from the first aperture, and forming a second transfer pattern on the resist by irradiating a second electron beam through the first aperture, the second transfer pattern extending in the first direction and overlapping a portion the boundary of the first transfer pattern, and the second electron beam having a cross section of a second square when emerging from the first aperture.
摘要:
A photomask includes a pattern area and a blind area, a first opaque pattern disposed on the blind area and having a first thickness, and a second opaque pattern disposed on the pattern area and having a second thickness smaller than the first thickness. The first and second opaque patterns are formed of the same material.
摘要:
A method for manufacturing a photomask includes forming a photoresist film on a substrate, and forming a defect detecting pattern on the photoresist film. The defect detecting pattern has a first pattern elongated in a first direction and a second pattern overlapping one end of the first pattern and elongated in a second direction different from the first direction. The first pattern and the second pattern are formed using electron beams (e-beam) diffracted by a same amplifier.
摘要:
A method for supplying power to a memory card in a memory card system includes detecting a completion time of a write operation of the memory card, generating a power off strobe signal, the power off strobe signal supplied to the memory card after a predetermined delay time passes from the detected complete time of the write operation, and cutting off power supplied to the memory card using the host after a predetermined power off delay time passes from the time when the power off strobe signal is generated.
摘要:
A system for measuring dimension of photomasks comprises a light source emitting measuring light having a wavelength, a transmission detector for receiving the measuring light, a stage on which a photomask having circuit patterns is placed, the stage being disposed between the light source and the transmission detector, and a controller having a dimension-deciding algorithm to determine a dimension of the circuit patterns from a spectroscopic characteristic of the received measuring light, the controller being connected to the transmission detector.
摘要:
A photomask includes a pattern area and a blind area, a first opaque pattern disposed on the blind area and having a first thickness, and a second opaque pattern disposed on the pattern area and having a second thickness smaller than the first thickness. The first and second opaque patterns are formed of the same material.
摘要:
A method for manufacturing a photomask includes forming a photoresist film on a substrate, and forming a defect detecting pattern on the photoresist film. The defect detecting pattern has a first pattern elongated in a first direction and a second pattern overlapping one end of the first pattern and elongated in a second direction different from the first direction. The first pattern and the second pattern are formed using electron beams (e-beam) diffracted by a same amplifier.