Method for manufacturing high-voltage lateral dual-diffusion N-channel metal oxide semiconductor (NMOS) based on standard complementary metal-oxide-semiconductor transistor (CMOS) process
A technology of lateral double-diffusion and manufacturing method, which is applied in the field of high-voltage lateral double-diffusion NMOS manufacturing. It can solve the problems of lowering the requirements of photolithographic alignment, difficult manufacturing process, and integration, and achieves short channel length and optimal current drive. and the effect of conduction capability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0038] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0039] figure 1 It is a schematic flowchart of a method for fabricating a high-voltage lateral double-diffusion NMOS based on a standard CMOS process according to an embodiment of the present invention. As shown in the figure, the fabrication method of the high-voltage lateral double-diffused NMOS (LDNMOS) may include:
[0040] Executing step S101, providing a P-type silicon substrate on which local oxidation isolation is made, the P-type silicon substrate is divided into a low-voltage CMOS region and a high-voltage LDNMOS region, and the low-voltage CMOS region is further divided into a PMOS region and an NMOS region;
[0041] Executing step S102, implanting and diffusing N-type impurities in the high-voltage LDNMOS region to form a high-voltage N well of the LDNMOS;...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com