Propagation Delay Time Analysis of I2L

Teruo TAMAMA  Masahiro SAKAUE  Yoshihiko MIZUSHIMA  

IEICE TRANSACTIONS (1976-1990)   Vol.E62   No.4   pp.235-240
Publication Date: 1979/04/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Semiconductors

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Analytic expressions for evaluating minimum propagation delay time tpd are derived, using a model which is effective for analysis of the device with a merged structure. Calculated results are in good agreement with experimental ones. Junction modifying coefficient k is newly introduced for the theory. k affects tpd through a variable function of current gains, and a deviation from the Klaassen's theory is pointed out. Role of the pnp transistor on the performance of the I2L gate is emphasized.