A bidirectional thyristor electrostatic protection device
An electrostatic protection and device technology, which is applied in the field of bidirectional thyristor electrostatic protection devices, can solve the problem that unidirectional thyristor devices cannot meet bidirectional electrostatic protection, etc., and achieves improved electrostatic discharge capability, improved protection level, and uniform temperature distribution. Effect
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] Such as Figure 4 , Figure 5 As shown, a bidirectional thyristor electrostatic protection device includes a P-type substrate 101;
[0031] An N-type buried layer 201, a first P+ implantation region 601 and a sixth P+ implantation region 608 are sequentially provided in the substrate 101 from left to right;
[0032] A first N-type deep well 501, a first P-well 401, an N-well 301, a second P-well 402, and a second N-type deep well 502 are sequentially arranged above the N-type buried layer 201 from left to right;
[0033] A second P+ implantation region 602, a third P+ implantation region 603, and a first N+ implantation region 604 are sequentially provided in the first P well 401 from left to right;
[0034] A second N+ implantation region 605, a fourth P+ implantation region 606, and a fifth P+ implantation region 607 are sequentially provide...
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