功能材料与器件学报
功能材料與器件學報
공능재료여기건학보
JOURNAL OF FUNCTIONAL MATERIALS AND DEVICES
2009年
5期
511-515
,共5页
金冬月%张万荣%谢红云%沈珮%胡宁%甘军宁%李佳
金鼕月%張萬榮%謝紅雲%瀋珮%鬍寧%甘軍寧%李佳
금동월%장만영%사홍운%침패%호저%감군저%리가
SiGe%HBT%热稳定性
SiGe%HBT%熱穩定性
SiGe%HBT%열은정성
SiGe%HBT%thermal stability
提出非均匀指间距结构功率SiGe HBTs的版图设计用以改善热稳定性.模拟和实验结果均表明,与传统的均匀指间距结构相比,非均匀指间距结构HBT的峰值结温和温度分布非均匀性均得到显著改善.上述改善归功于非均匀指间距结构HBT中心指间距的增加,从而有效阻止热流由外侧指流向中心指处.此外,与均匀指间距结构器件相比,其热阻改善13.71%,热退化功率水平提高22.8%.因此,模拟和实验均证明采用非均匀指间距结构HBT的版图设计可有效改善功率HBTs热稳定性.
提齣非均勻指間距結構功率SiGe HBTs的版圖設計用以改善熱穩定性.模擬和實驗結果均錶明,與傳統的均勻指間距結構相比,非均勻指間距結構HBT的峰值結溫和溫度分佈非均勻性均得到顯著改善.上述改善歸功于非均勻指間距結構HBT中心指間距的增加,從而有效阻止熱流由外側指流嚮中心指處.此外,與均勻指間距結構器件相比,其熱阻改善13.71%,熱退化功率水平提高22.8%.因此,模擬和實驗均證明採用非均勻指間距結構HBT的版圖設計可有效改善功率HBTs熱穩定性.
제출비균균지간거결구공솔SiGe HBTs적판도설계용이개선열은정성.모의화실험결과균표명,여전통적균균지간거결구상비,비균균지간거결구HBT적봉치결온화온도분포비균균성균득도현저개선.상술개선귀공우비균균지간거결구HBT중심지간거적증가,종이유효조지열류유외측지류향중심지처.차외,여균균지간거결구기건상비,기열조개선13.71%,열퇴화공솔수평제고22.8%.인차,모의화실험균증명채용비균균지간거결구HBT적판도설계가유효개선공솔HBTs열은정성.
The layout design of a multi-finger power SiGe HBT with non--uniform finger spacing is pro-posed to improve the thermal stability.Compared with the traditional HBT with uniform finger spacing,both simulated and experimental results shown that the peak temperature and the non-uniformitv of the temperature profile in the HBT with non-unifotin finger spacing are improved markedly.which is as-cribed to the increasing the spacing between fingers,and hence suppressing the heat flow from adjacent fingers to the center finger effectively.Furthermore,the thermal resistance is improved by 13.69% and the power level for thermal regression is increased by 22.8% compared with that of the uniform finger spacing device.Therefore,both simulation and experiment prove that the layout design of HBTs with non-uniform finger spacing is very useful for improving the thermal stability of power HBTs.