Patent classifications
H01L2924/13034
Method for forming complex electronic circuits by interconnecting groups of printed devices
A programmable circuit includes an array of printed groups of microscopic transistors or diodes. The devices are pre-formed and printed as an ink and cured. The devices in each group are connected in parallel so that each group acts as a single device. In one embodiment, about 10 devices are contained in each group so the redundancy makes each group very reliable. Each group has at least one electrical lead that terminates in a patch area on the substrate. An interconnection conductor pattern interconnects at least some of the leads of the groups in the patch area to create logic circuits for a customized application of the generic circuit. The groups may also be interconnected to be logic gates, and the gate leads terminate in the patch area. The interconnection conductor pattern then interconnects the gates for form complex logic circuits.
SEMICONDUCTOR DEVICE
A semiconductor device includes a first diode, a second diode, a clamp circuit and a third diode. The first diode is coupled between an input/output (I/O) pad and a first voltage terminal. The second diode is coupled with the first diode, the I/O pad and a second voltage terminal. The clamp circuit is coupled between the first voltage terminal and the second voltage terminal. The second diode and the clamp circuit are configured to direct a first part of an electrostatic discharge (ESD) current flowing between the I/O pad and the first voltage terminal. The third diode, coupled to the first voltage terminal, and the second diode include a first semiconductor structure configured to direct a second part of the ESD current flowing between the I/O pad and the first voltage terminal.
DISCRETE POWER TRANSISTOR PACKAGE HAVING SOLDERLESS DBC TO LEADFRAME ATTACH
A packaged power transistor device includes a Direct-Bonded Copper (DBC) substrate. Contact pads of a first lead are attached with solderless welds to a metal layer of the DBC substrate. In a first example, the solderless welds are ultrasonic welds. In a second example, the solderless welds are laser welds. A single power transistor realized on a single semiconductor die is attached to the DBC substrate. In one example, a first bond pad of the die is wire bonded to a second lead, and a second bond pad of the die is wire bonded to a third lead. The die, the wire bonds, and the metal layer of the DBC substrate are covered with an amount of plastic encapsulant. Lead trimming is performed to separate the first, second and third leads from the remainder of a leadframe, the result being the packaged power transistor device.
DISCRETE POWER TRANSISTOR PACKAGE HAVING SOLDERLESS DBC TO LEADFRAME ATTACH
A packaged power transistor device includes a Direct-Bonded Copper (DBC) substrate. Contact pads of a first lead are attached with solderless welds to a metal layer of the DBC substrate. In a first example, the solderless welds are ultrasonic welds. In a second example, the solderless welds are laser welds. A single power transistor realized on a single semiconductor die is attached to the DBC substrate. In one example, a first bond pad of the die is wire bonded to a second lead, and a second bond pad of the die is wire bonded to a third lead. The die, the wire bonds, and the metal layer of the DBC substrate are covered with an amount of plastic encapsulant. Lead trimming is performed to separate the first, second and third leads from the remainder of a leadframe, the result being the packaged power transistor device.
Electronics package having a multi-thickness conductor layer and method of manufacturing thereof
An electronics package includes an insulating substrate, a first electrical component coupled to a first surface of the insulating substrate, and a first conductor layer formed on the first surface of the insulating substrate. A second conductor layer is formed on a second surface of the insulating substrate, opposite the first surface, the second conductor layer extending through vias in the insulating substrate to contact at least one contact pad of the first electrical component and couple with the first conductor layer. The electronics package also includes a second electrical component having at least one contact pad coupled to the first conductor layer. The first conductor layer has a thickness greater than a thickness of the second conductor layer.
Discrete power transistor package having solderless DBC to leadframe attach
A packaged power transistor device includes a Direct-Bonded Copper (DBC) substrate. Contact pads of a first lead are attached with solderless welds to a metal layer of the DBC substrate. In a first example, the solderless welds are ultrasonic welds. In a second example, the solderless welds are laser welds. A single power transistor realized on a single semiconductor die is attached to the DBC substrate. In one example, a first bond pad of the die is wire bonded to a second lead, and a second bond pad of the die is wire bonded to a third lead. The die, the wire bonds, and the metal layer of the DBC substrate are covered with an amount of plastic encapsulant. Lead trimming is performed to separate the first, second and third leads from the remainder of a leadframe, the result being the packaged power transistor device.
Discrete power transistor package having solderless DBC to leadframe attach
A packaged power transistor device includes a Direct-Bonded Copper (DBC) substrate. Contact pads of a first lead are attached with solderless welds to a metal layer of the DBC substrate. In a first example, the solderless welds are ultrasonic welds. In a second example, the solderless welds are laser welds. A single power transistor realized on a single semiconductor die is attached to the DBC substrate. In one example, a first bond pad of the die is wire bonded to a second lead, and a second bond pad of the die is wire bonded to a third lead. The die, the wire bonds, and the metal layer of the DBC substrate are covered with an amount of plastic encapsulant. Lead trimming is performed to separate the first, second and third leads from the remainder of a leadframe, the result being the packaged power transistor device.
Semiconductor device having multiple electrostatic discharge (ESD) paths
In some embodiments, a semiconductor device is provided, including a first doped region of a first conductivity type configured as a first terminal of a first diode, a second doped region of a second conductivity type configured as a second terminal of the first diode, wherein the first and second doped regions are coupled to a first voltage terminal; a first well of the first conductivity type surrounding the first and second doped regions in a layout view; a third doped region of the first conductivity type configured as a first terminal, coupled to an input/output pad, of a second diode; and a second well of the second conductivity type surrounding the third doped region in the layout view. The second and third doped regions, the first well, and the second well are configured as a first electrostatic discharge path between the I/O pad and the first voltage terminal.
Printing complex electronic circuits using a printable solution defined by a patterned hydrophobic layer
A programmable circuit includes an array of printed groups of microscopic transistors or diodes. The devices are pre-formed and printed as an ink and cured. A patterned hydrophobic layer defines the locations of the printed dots of the devices. The devices in each group are connected in parallel so that each group acts as a single device. Each group has at least one electrical lead that terminates in a patch area on the substrate. An interconnection conductor pattern interconnects at least some of the leads of the groups in the patch area to create logic circuits for a customized application of the generic circuit. The groups may also be interconnected to be logic gates, and the gate leads terminate in the patch area. The interconnection conductor pattern then interconnects the gates for form complex logic circuits.
Semiconductor device having multiple electrostatic discharge (ESD) paths
A semiconductor device includes a first diode, a second diode, a clamp circuit and a third diode. The first diode is coupled between an input/output (I/O) pad and a first voltage terminal. The second diode is coupled with the first diode, the I/O pad and a second voltage terminal. The clamp circuit is coupled between the first voltage terminal and the second voltage terminal. The second diode and the clamp circuit are configured to direct a first part of an electrostatic discharge (ESD) current flowing between the I/O pad and the first voltage terminal. The third diode, coupled to the first voltage terminal, and the second diode include a first semiconductor structure configured to direct a second part of the ESD current flowing between the I/O pad and the first voltage terminal.