A Novel High-Voltage Pseudo-p-LDMOS Device With Three Current Conductive Paths

A Novel High-Voltage Pseudo-p-LDMOS Device With Three Current Conductive Paths
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一种具有三个电流传导路径的新型高压伪p-LDMOS器件

DOI:
10.1109/ted.2018.2882016
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发表时间:
2019-01
影响因子:
3.1
通讯作者:
Bingke Zhang
Bingke Zhang
中科院分区:
工程技术2区
文献类型:
--
作者:
Moufu Kong;Bo Yi;Bingke Zhang

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提出并研究了一种新的多电流通路高压伪p沟道横向双扩散MOS(p-LDMOS)。该功率器件由两个空穴电流路径(p沟道MOS器件)和一个电子电流路径(n沟道MOS器件)组成。N沟道器件的栅极由芯片内部的感应信号自动控制,因此可以认为该器件是一种p-LDMOS,与传统的p-LDMOS器件相比,比导通电阻降低了66.2%以上。此外,由于补偿了电子和空穴电流带来的电流密度,所提出的器件具有更好的安全工作区域。
A new concept high-voltage pseudo-p-channel lateral double-diffused MOS (p-LDMOS) with multiple current paths for conduction is proposed and investigated in this paper. The proposed power device consists of two hole current paths (p-channel MOS device) and one electron current path (n-channel MOS device). The gate of the n-channel device is automatically controlled by an induced signal inside the chip, thus the proposed device can be considered as a p-LDMOS with more than 66.2% reduction of specific on-resistance in comparison with the conventional p-LDMOS device. Furthermore, the proposed device has a much better safe operation area, since the compensation of the electric flux density brought by electron and hole currents.
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