摘要:
A semiconductor device and related method of manufacture are disclosed. The device comprises; a trench having a corner portion formed in the semiconductor substrate, a first oxide film formed on an inner wall of the trench and having an upper end portion exposing the corner portion of the semiconductor substrate, a nitride liner formed on the first oxide film, a second oxide film formed in contact with the upper end of the first oxide film and on the exposed corner portion and an upper surface of the semiconductor substrate, a field insulating film formed on the nitride liner to substantially fill the trench, and a field protecting film formed in contact with the second oxide film and filling a trench edge recess formed between the field insulating film and the second oxide film.
摘要:
Halftone phase shift photomasks are provided including a substrate configured to transmit light; a shift pattern on the substrate, the shift pattern including a pattern area on a center portion of the substrate and a blind area disposed on a periphery of the substrate, the shift pattern of the blind area having a greater thickness than a thickness that of the pattern area, and being configured to partially transmit the light; and a light shielding pattern formed on the shift pattern in the blind area and being configured to shield the light. Related methods are also provided herein.
摘要:
Halftone phase shift photomasks are provided including a substrate configured to transmit light; a shift pattern on the substrate, the shift pattern including a pattern area on a center portion of the substrate and a blind area disposed on a periphery of the substrate, the shift pattern of the blind area having a greater thickness than a thickness that of the pattern area, and being configured to partially transmit the light; and a light shielding pattern formed on the shift pattern in the blind area and being configured to shield the light. Related methods are also provided herein.
摘要:
An integrated PCM-CODEC circuit including a plurality of PCM subscriber lines consisting of a SLIC for interfacing a telephone line with a switching system, an impedance conformer and a PCM-CODEC, a common bus for transferring a telephone signal into or from a subscriber according to the time division rule for the timing of telephone line use, a telemetering signal source and a (synchronization signal for controlling portion of the telephone call called by the n'th subscriber. The PCM-CODEC circuit includes a buffer, a signal selector, an applied gain controller, an anti-aliasing filter, a telemetering signal filter, a BPF, a coder, a decoder, a LPF, a received-gain controller, a smoothing filter, an operational amplifier and a telemetering gate.