IC版图闩锁预防

IC Layout Latch-up Prevent

在版图设计当中,latch-up闩锁是比较常见的现象。电路设计上有可能自然形成,但版图设计中更容易形成这种结构。除了普通情况下形成的latch-up结构,我们还有可能碰到比较特殊的情况,比如管子的SUB为衬切的情况,这种情况下稍有不慎就会形成latch-up闩锁。

In the layout design, latch-up latch is a common phenomenon. Circuit design may naturally form, but it is easier to form this structure in layout design. In addition to the latch-up structure formed under normal conditions, we may also encounter a special case, such as the SUB of the tube is the case of the lining, in which case the latch-up latch is formed with carelessness.