Abstract: A JFET transistor device having a reduced pitch may be manufactured using self-alignment techniques, while avoiding misalignments that may lead to decreased breakdown voltage and/or increased RDSon. Consequently, described devices provide, for a given active area and gate voltage, additional current channels, increased current, and reduced RDSon, as compared to conventional devices, while retaining high BVgs values.

Abstract: A method of making a semiconductor device includes providing semiconductor region of a first conductivity type. A first region comprising the first conductivity type and a second dopant concentration greater than the first dopant concentration is provided within the region. The first region provides a JFET channel region for a JFET device. A second region comprising a second conductivity type is provided within the first region. The second region provides a body region for a MOSFET device and a gate region for the JFET device. The second region comprises a first portion and a second portion below the first portion. The second portion has a higher peak dopant concentration than the first portion. A third region comprising the first conductivity type is provided within and self-aligned to the second region. The third region provides a JFET source for the JFET device.

Abstract: A semiconductor device may include a plurality of transistors, with a first array of low-resistance material formed in a first dielectric layer, with a gate subset of the first array formed on a plurality of gate electrodes of the transistors, and a source subset of the first array formed on a plurality of source regions of the transistors. A second array of low-resistance material may be formed in a second dielectric layer, with a gate subset of the second array formed on the gate subset of the first array and thereby electrically connected to the plurality of gate electrodes, and a source subset of the second array formed on the source subset of the first array and thereby electrically connected to the plurality of source regions.

Abstract: A fluid sample collection system includes a vial, a plunger and a fluid sample collection device having an absorbent for absorbing and retaining a fluid sample therein. The plunger includes an elongated handle portion and a plunger head portion detachably connected to the handle portion. The plunger also includes a splash guard supported on the handle portion. During the sample collection process, the saturated absorbent from the sample collection device is placed into the vial and the plunger is then advanced toward a closed end of the vial to express the fluid sample from the absorbent. The plunger head portion is retained within the vial with the absorbent in a generally compressed state and the handle portion is detached and removed from the vial.

Abstract: A fluid sample collection system includes a vial, a plunger and a fluid sample collection device having an absorbent for absorbing and retaining a fluid sample therein. The plunger includes an elongated handle portion and a plunger head portion detachably connected to the handle portion. The plunger also includes a splash guard supported on the handle portion. During the sample collection process, the saturated absorbent from the sample collection device is placed into the vial and the plunger is then advanced toward a closed end of the vial to express the fluid sample from the absorbent. The plunger head portion is retained within the vial with the absorbent in a generally compressed state and the handle portion is detached and removed from the vial.

Abstract: A fluid sample collection system includes a vial, a plunger and a fluid sample collection device having an absorbent for absorbing and retaining a fluid sample therein. The plunger includes an elongated handle portion and a plunger head portion detachably connected to the handle portion. The plunger also includes a splash guard supported on the handle portion. During the sample collection process, the saturated absorbent from the sample collection device is placed into the vial and the plunger is then advanced toward a closed end of the vial to express the fluid sample from the absorbent. The plunger head portion is retained within the vial with the absorbent in a generally compressed state and the handle portion is detached and removed from the vial.

Abstract: A fluid sample collection system includes a vial, a plunger and a fluid sample collection device having an absorbent for absorbing and retaining a fluid sample therein. The plunger includes an elongated handle portion and a plunger head portion detachably connected to the handle portion. The plunger also includes a splash guard supported on the handle portion. During the sample collection process, the saturated absorbent from the sample collection device is placed into the vial and the plunger is then advanced toward a closed end of the vial to express the fluid sample from the absorbent. The plunger head portion is retained within the vial with the absorbent in a generally compressed state and the handle portion is detached and removed from the vial.