摘要:
A semiconductor device includes a substrate having a first region and a second region. The first region is electrically isolated from the second region. The semiconductor device further includes a lateral field-effect transistor (FET) disposed within the first region. The lateral FET includes a first terminal and a second terminal. The semiconductor device further includes a diode disposed within the second region, the diode including a plurality of anode regions and a plurality of cathode regions. The semiconductor device further includes a first electrical connection between the first terminal of the lateral FET and the anode regions of the diode, and a second electrical connection between the second terminal of the lateral FET and the cathode regions of the diode. The first and second electrical connections are disposed over a surface of the substrate.
摘要:
A semiconductor device includes a substrate having a first region and a second region. The first region is electrically isolated from the second region. The semiconductor device further includes a lateral field-effect transistor (FET) disposed within the first region. The lateral FET includes a first terminal and a second terminal. The semiconductor device further includes a diode disposed within the second region, the diode including a plurality of anode regions and a plurality of cathode regions. The semiconductor device further includes a first electrical connection between the first terminal of the lateral FET and the anode regions of the diode, and a second electrical connection between the second terminal of the lateral FET and the cathode regions of the diode. The first and second electrical connections are disposed over a surface of the substrate.
摘要:
A monolithic semiconductor device has an insulating layer formed over a first substrate. A second substrate is disposed over the first insulating layer. A power MOSFET with body diode is formed over the second substrate. A Schottky diode is formed over the second substrate in proximity to the MOSFET. An insulation trench is formed within the second substrate between the MOSFET and Schottky diode. The isolation trench surrounds the MOSFET and first Schottky diode. A first electrical connection is formed between a source of the MOSFET and an anode of the Schottky diode. A second electrical connection is formed between a drain of the MOSFET and a cathode of the Schottky diode. The Schottky diode reduces charge build-up within the body diode and reverse recovery time of the first power MOSFET. The power MOSFET and integrated Schottky can be used in power conversion or audio amplifier circuit.
摘要:
A semiconductor device includes a substrate. The substrate includes a semiconductor material. An electrically isolated region is formed over the substrate. A metal-oxide-semiconductor field-effect transistor (MOSFET) is formed over the substrate within the electrically isolated region. The electrically isolated region includes a trench formed around the electrically isolated region. An insulative material such as silicon dioxide (SiO2) may be deposited into the trench. A diode is formed over the substrate within the electrically isolated region. In one embodiment, the diode is a Schottky diode. A metal layer may be formed over a surface of the substrate to form an anode of the diode. A first electrical connection is formed between a source of the MOSFET and an anode of the diode. A second electrical connection is formed between a drain of the MOSFET and a cathode of the diode.
摘要:
A semiconductor device has a semiconductor wafer with a plurality of semiconductor die including a plurality of contact pads. An insulating layer is formed over the semiconductor wafer and contact pads. An under bump metallization (UBM) is formed over and electrically connected to the plurality of contact pads. A mask is disposed over the semiconductor wafer with a plurality of openings aligned over the plurality of contact pads. A conductive bump material is deposited within the plurality of openings in the mask and onto the UBM. The mask is removed. The conductive bump material is reflowed to form a plurality of bumps with a height less than a width. The plurality of semiconductor die is singulated. A singulated semiconductor die is mounted to a substrate with bumps oriented toward the substrate. Encapsulant is deposited over the substrate and around the singulated semiconductor die.
摘要:
A semiconductor device has a semiconductor wafer with a plurality of semiconductor die including a plurality of contact pads. An insulating layer is formed over the semiconductor wafer and contact pads. An under bump metallization (UBM) is formed over and electrically connected to the plurality of contact pads. A mask is disposed over the semiconductor wafer with a plurality of openings aligned over the plurality of contact pads. A conductive bump material is deposited within the plurality of openings in the mask and onto the UBM. The mask is removed. The conductive bump material is reflowed to form a plurality of bumps with a height less than a width. The plurality of semiconductor die is singulated. A singulated semiconductor die is mounted to a substrate with bumps oriented toward the substrate. Encapsulant is deposited over the substrate and around the singulated semiconductor die.
摘要:
A power MOSFET is provided on a semiconductor die to withstand radiation exposure. The semiconductor die is mounted on a die flag of a leadframe. The MOSFET includes a substrate and epitaxial layer formed over the substrate. A source region is formed in a surface of the semiconductor die. The source region is coupled to the die flag. A contact pad is formed on the source region. A base region is formed in the surface of the semiconductor die adjacent to the source region. The base region is electrically connected to the contact pad. A drain region is formed in the surface of the semiconductor die. The drain region is coupled to a first wire bond pad on the leadframe. A gate structure is formed over a channel between the source region and drain region. The gate structure is coupled to a second wire bond pad on the leadframe.
摘要:
A semiconductor device has a substrate with a source region and a drain region formed on the substrate. A silicide layer is disposed over the source region and drain region. A first interconnect layer is formed over the silicide layer and includes a first runner connected to the source region and second runner connected to the drain region. A second interconnect layer is formed over the first interconnect layer and includes a third runner connected to the first runner and a fourth runner connected to the second runner. An under bump metallization (UBM) is formed over and electrically connected to the second interconnect layer. A mask is disposed over the substrate with an opening in the mask aligned over the UBM. A conductive bump material is deposited within the opening in the mask. The mask is removed and the conductive bump material is reflowed to form a bump.
摘要:
A semiconductor device has a buried oxide layer formed over a substrate. An active silicon layer is formed over the buried oxide layer. A drain region is formed in the active silicon layer. An LDD drift region is formed in the active silicon layer adjacent to the drain region. The drift region has a graded doping distribution. A co-implant region is formed in the active silicon. A source region is formed in the co-implant region. A shallow trench insulator is formed along a top surface of the LDD drift region. The shallow trench isolator has a length less than the LDD drift region. The shallow trench insulator terminates under the polysilicon gate and within the LDD drift region. A polysilicon gate is formed above the active silicon layer between the source region and LDD drift region and at least partially overlapping the shallow trench insulator.
摘要:
A semiconductor device has a substrate with a source region and a drain region formed on the substrate. A silicide layer is disposed over the source region and drain region. A first interconnect layer is formed over the silicide layer and includes a first runner connected to the source region and second runner connected to the drain region. A second interconnect layer is formed over the first interconnect layer and includes a third runner connected to the first runner and a fourth runner connected to the second runner. An under bump metallization (UBM) is formed over and electrically connected to the second interconnect layer. A mask is disposed over the substrate with an opening in the mask aligned over the UBM. A conductive bump material is deposited within the opening in the mask. The mask is removed and the conductive bump material is reflowed to form a bump.