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Crosstalk suppression in mixed-mode ICs by the π technology and the future with an SOC integration platform: particle-beam stand (PBS)

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3 Author(s)
Chungpin Liao ; Adv. Res. & Bus. Lab., Taichung, Taiwan ; Mao-Neng Liu ; Kai-Chuang Juang

A π technology (particle-enhanced isolation, PEI) is proposed to employ penetrating proton beams on the already manufactured mixed-mode (analog-digital) IC wafers (prior to packaging) for the suppression of undesirable substrate coupling. Results indicated that an improvement of 25-30 dB could be achieved by applying a relatively low-fluence proton bombardment on the isolation-intended region in a metal pads pattern. Hall measurements of the irradiated spots were conducted and the associated physics are elaborated on. Issues relevant to the commercial-scale implementation of this technology are also pointed out and discussed. Finally, a π-technology-based post-very large scale integration (VLSI) concept: the "particle-beam stand" (PBS) is promoted, which, especially with its design rules pushed to the front end, can potentially serve as the general system-on-a-chip (SOC) integration platform and end most mixed-mode and RF SOC development difficulties.

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Electron Devices, IEEE Transactions on  (Volume:50 ,  Issue: 3 )