摘要:
A monolithic integrated circuit includes first (424) and second (420) pluralities of parallel-connected transistor elements (e.g., transistor fingers). To spread heat in the IC, the first and second pluralities of transistor elements are interleaved with each other and arranged in a first row (474). The IC also may include third (434) and fourth (430) pluralities of parallel-connected transistor elements arranged in a second row (476). The transistor elements in the first row may be series and shunt transistors of an RF switch transmit path, and the transistor elements in the second row may be series and shunt transistors of an RF switch receive path. During a transmit mode of operation, the series transistors in the transmit path and the shunt transistors in the receive path are closed. During a receive mode of operation, the shunt transistors in the transmit path and the series transistors in the receive path are closed.
摘要:
The invention relates to a semiconductor arrangement for a current sensor in a power semiconductor, which arrangement comprises, on a substrate (1), a multiple arrangement of transistor cells (2) with an insulated gate electrode, the emitter connections (10) of which in a first region (12) are connected to at least one output connection (25) via a first conductive layer (16) and the emitter connections (10) of which in a second region (13) are connected to at least one sensor connection (18) via a second conductive layer (17), which sensor connection is arranged outside a first cell region boundary (14) which surrounds the transistor cells (2) of the first region (12) and the transistor cells (2) of the second region (13), wherein a trench structure belonging to the first cell region boundary (14) is formed between the transistor cells (2) of the second region (13) and the sensor connection (18) and is adjoined, in the direction of an outer edge of the substrate (1), by a doped layer (15) connected to the first conductive layer (16).
摘要:
Transistor bipolaire à hétérojonction insensible à la variation de la température extérieure et circuit intégré associé. La présente invention concerne la stabilisation du comportement notamment dans le cas des applications hyperfréquences, analogique ou numérique, en fonction de la température extérieure de fonctionnement du transistor bipolaire à hétérojonction. Elle concerne aussi un circuit intégré associé. Selon l'invention, le transistor (6) est polarisé (DC) en continu par sa base au moyen d'une résistance de stabilisation (5) tandis que le signal à amplifier (RF) est transmis à la base par l'intermédiaire d'un condensateur (4) de liaison. Le transistor de l'invention est compensé directement de façon interne lors de sa fabrication. Les circuits intégrés qui le contiennent n'ont donc pas besoin de dispositifs extérieur de régulation en température. Il n'est pas besoin non plus de tenir compte des variations de température ambiante lors de leur conception.
摘要:
Amplifier circuit comprising a control transistor (T₂) and an output transistor (T₁) whose control electrode is coupled to the main current path of the control transistor (T₂). The control electrode of the output transistor (T₁) is also coupled to a current supply element (I₁) which is arranged in series with the main current path of the control transistor (T₂) for supplying a bias current whose variation as a result of thermal coupling (t₂) between the current supply element (I₁) and the output transistor (T₁) is smaller than the variation of the part of the bias current flowing through the main current path of the control transistor (T₂) as a result of thermal coupling (t₁) between the control transistor (T₂) and the output transistor (T₁).
摘要:
A thermal jet ink printing system is provided with an improved printhead. The printhead is formed by monolithic integration of MOS transistors switches (78, 80, 82) onto the same silicon substrate (48) containing the resistive elements. In a preferred embodiment, the transistor switches and resistive elements are formed from a single layer of polysilicon (78, 79) with the resistive element formed on a thermally grown field oxide layer (72) having a thickness ranging from about one to four µm. The integrated circuit chips are formed by MOS technology, are thermally stable and can be operated at higher voltages than known chips.
摘要:
A semiconductor device comprises a drive circuit (4) and a logic circuit (5) connected in series. The drive circuit (4) and the logic circuit (5) are constituted by complementary metal oxide semiconductors. Such semiconductor devices may be applied, for example, to thermal heads for printers.