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Die edge crack and delamination detection

机译:模具边缘裂纹和脱层检测

摘要

A die edge crack and delamination detection device includes a semiconductor device including an IC active area surrounded by at least one mechanical protection barrier (MPB); one or more metallization layers stacked on the IC active area; a plurality of passive electronic devices placed within the metallization layers at respective predetermined distances from the MPB; and a detection circuit having circuitry. The circuitry is configured to determine a specific metallization layer in which a crack or a delamination is encroaching from an edge of the semiconductor device, determine a lateral distance of a lead end of the crack or the delamination from the MPB, and determine a rate of approach of the crack or the delamination encroaching towards the MPB, via a nominal change in an electrical measurement of at least one of the passive electronic devices.
机译:芯片边缘裂纹和脱层检测装置包括:半导体装置,其包括被至少一个机械保护屏障(MPB)围绕的IC有源区;在IC有源区上堆叠一层或多层金属化层;多个无源电子器件,其以距MPB预定距离的方式放置在金属化层内;具有电路的检测电路。该电路被配置为确定特定的金属化层,在该特定的金属化层中从半导体器件的边缘侵入裂纹或分层,确定裂纹或分层的前端与MPB的横向距离,并确定速率。通过至少一个无源电子设备的电气测量中的标称变化,使裂纹或分层接近MPB。

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