Alpha-Particle-Induced Field and Enhanced Collection of Carriers

Chen-Ming Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

142 Scopus citations


A simple physical model explains all the characteristics of the newly discovered funnelling phenomenon. An alpha strike results in significant field in the quasi-neutral regions to a depth that is equal to 1 + μn/μp times the depletion region width of an n+/p junction. This and the predicted current waveform agree with experiments and simulation results. The model also predicts the effects of the angle of alpha incidence, and that p+/n junctions should exhibit weaker funnelling phenomenon.

Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalIEEE Electron Device Letters
Issue number2
StatePublished - 1 Jan 1982


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