인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 저자정보
초록·키워드
This study proposed a dual siliconcontrolled rectifier (SCR)-based protection device with an enhanced structure and high holding voltage for protection against electrostatic discharge (ESD). The structure facilitates an electrical connection between the bridge and additional N+ diffusion regions to turn on an additional NPN parasitic bipolar transistor on the SCR loop path and reduce the SCR positive feedback loop gain. Consequently, the snapback characteristics of the conventional device were improved. A two-dimensional technology computer-aided design (TCAD) simulation was performed to verify the operating principles and identify the characteristics of this device. Subsequently, the proposed device and a low-trigger dual-directional (LTDD) SCR were fabricated using a 0.18 μm bipolar-CMOS-DMOS (BCD) process under identical conditions. Further, the transmission-linepulse (TLP), transient latch-up (TLU) measurement method, and hot-chuck control system were used to evaluate the electrical characteristics and thermal reliability. In addition, the electrical characteristics of the device were optimized utilizing design variables. The measurement results indicated that the proposed device exhibited an improved holding voltage of 11.31 V, which was further optimized to 14.24 V using a suitable design parameter. Moreover, it demonstrated sufficient thermal reliability with a holding voltage greater than 12 V at 500 K. Therefore, this device is suitable for 12-V-class applications and is expected to provide excellent area-based efficiency and thermal reliability.
본문·목차
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