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

Image Number 11 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
Method for producing carrier on which microorganisms capable of conducting multiple parallel mineralization are immobilized, column reactor and solid medium for cultivating plants
Device for identifying types of document files
Optoelectronic semiconductor chip comprising a reflective layer
Re-establishing push notification channels via user identifiers
Method for editing a media clip in a mobile terminal device, a terminal device utilizing the method and program means for implementing the method
Technique for manufacturing bit patterned media
Methods of forming integrated circuit packages
  Randomly Featured Patents
Heat dissipating microelectronic package
Oral ingesta for animals
Stopper for forming a gas-tight seal for a variety of bottles
System and method for optimizing slave transaction ID width based on sparse connection in multilayer multilevel interconnect system-on-chip architecture
Derivatives of (bridged piperazinyl)-1-alkanone and use thereof as p75 inhibitors
Multiannular swirl combustor providing particulate separation
Personal care compositions
Skate sidepocket backpack
Construction industry teaching game
Blasting machining apparatus using abrasive particles like powder