Second breakdown mechanisms of bipolar power transistor is summarized.

概述了双极功率晶体管二次击穿机理。

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There are two limitations on the power handling ability of a transistor: average junction temperature and second breakdown.

有两个限制了晶体管的处理能力，功耗：平均交界处的温度和二次击穿。

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The results show the plasma density is not completely lost during current reversal, therefore, there were no need for second breakdown after the current reversal.

结果发现：在电流过零处，等离子体未完全熄灭，使得电流转换后不需要第二次击穿。

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Over the last three years markets have experienced an intense second quarter breakdown, explained Dueker.

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The Tigers lacked ideas in attack, came off second-best at the breakdown and found their defence noticeably porous at key times.

BBC: Tigers losing their bite?

This is similar to the previous chart but has granular breakdown for the first and second halves of December and the first week of January.

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