微电子学
微電子學
미전자학
MICROELECTRONICS
2001年
2期
135-137
,共3页
彭宏论%王永强%姚育娟%张正选
彭宏論%王永彊%姚育娟%張正選
팽굉론%왕영강%요육연%장정선
Burn-in效应%CMOS器件%电离辐射效应%辐射加固
Burn-in效應%CMOS器件%電離輻射效應%輻射加固
Burn-in효응%CMOS기건%전리복사효응%복사가고
MOS管或IC在辐照以前,使其在较长时间内(约200h)处于一定的高温(120。C)下并加偏压。这一作用会改变器件对电离辐射的响应。器件会产生更大的N管阈值电压漂移,IC会产生更大的漏电流(一个量级以上),减小器件的时间参数退化。Burn-in效应具有很重要的辐射加固方面的意义:1)不考虑这个因素会过高估计器件的时间参数的衰退,从而淘汰掉一些可用的器件;2)对IC的静态漏电流估计不足可导致器件提前失效。
MOS管或IC在輻照以前,使其在較長時間內(約200h)處于一定的高溫(120。C)下併加偏壓。這一作用會改變器件對電離輻射的響應。器件會產生更大的N管閾值電壓漂移,IC會產生更大的漏電流(一箇量級以上),減小器件的時間參數退化。Burn-in效應具有很重要的輻射加固方麵的意義:1)不攷慮這箇因素會過高估計器件的時間參數的衰退,從而淘汰掉一些可用的器件;2)對IC的靜態漏電流估計不足可導緻器件提前失效。
MOS관혹IC재복조이전,사기재교장시간내(약200h)처우일정적고온(120。C)하병가편압。저일작용회개변기건대전리복사적향응。기건회산생경대적N관역치전압표이,IC회산생경대적루전류(일개량급이상),감소기건적시간삼수퇴화。Burn-in효응구유흔중요적복사가고방면적의의:1)불고필저개인소회과고고계기건적시간삼수적쇠퇴,종이도태도일사가용적기건;2)대IC적정태루전류고계불족가도치기건제전실효。
The exposure of MOS transistors or IC's to a high temperature (about 120 C) for one week or longer with a bias voltage, which is called burn-in, before radiation will change the response of devices to ionizing radiation. The radiation effects of the burn-in device differ from those of the non-burn-in device. For NMOS devices, greater threshold-voltage drift will occur, and for IC's, more leakage current and less time degradation can be induced. Research of burn-in effects is very significant for radiation hardness: 1) neglection of these effects will lead to overestimation of the time degradation of IC's, causing some possibly usable devices to be discarded; 2) underestimation of the static leakage current of IC's will make the device fail in advance.