Resources Contact Us Home
Method of manufacturing semiconductor device and semiconductor device

Image Number 12 for United States Patent #8084340.

A method of manufacturing a semiconductor device whereby, even in cases where ions are implanted into a shallow region of a semiconductor substrate when a deep well is formed, the influence of the ions on a MOSFET can be removed, thereby eliminating the need for increasing the chip area. A photoresist with a thickness matching the wavelength of exposure light is formed over the semiconductor substrate and then is exposed to the exposure light to form a photoresist pattern with an opening corresponding to a region for forming a first well. Subsequently, using the photoresist pattern as a mask, ions are implanted to form the first well, and after the photoresist pattern is removed, an epitaxial layer is grown over the semiconductor substrate. Consequently, the deep well is virtually located deeper in level than at the time of the ion implantation by an amount corresponding to the thickness of the epitaxial layer.

  Recently Added Patents
System and method for interactive image-based modeling of curved surfaces using single-view and multi-view feature curves
Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device
Method for the analysis of solid objects
Method and apparatus for filter-less class D audio amplifier EMI reduction
Distributed IP-PBX signal processing
Methods and compositions for improving photodynamic therapy through administration of lipids
Assigning runtime artifacts to software components
  Randomly Featured Patents
Methods and apparatus to manage partial-commit checkpoints with fixup support
Differential circuit having a variable current circuit for producing an exponential or a square transfer characteristic
Semiconductor amplifying circuit having improved bias circuit for supplying a bias voltage to an amplifying FET
Method and system relating to a multi-lateral trade engine for payment transactions
Monitoring polarization-mode dispersion and signal-to-noise ratio in optical signals based on polarization analysis
Gradient system
Sealing assembly and method
Speakerphone feature for a wireless handset
Food coatingstuff
Ink jet printing head having a flexible film covered ink supply chamber