摘要:
An electronic module (10) for removing heat from a semiconductor die (41) and a method of making the electronic module (10). The electronic module (10) has a baseplate (11) mated with an isolation structure (23). The isolation structure (23) has three portions: a first portion is bonded to the top surface (12) of the baseplate (11), a second portion is bonded to the bottom surface (13) of the baseplate (11), and a third portion is bonded to a side (14) of the baseplate (11). A semiconductor die (41) is bonded to the first portion of the isolation structure (23) and another semiconductor die (41) is bonded to the second portion of the isolation structure (23). The baseplate (11) has a cavity (20) through which a fluid flows and transports heat away from each semiconductor die (41).
摘要:
With regard to Figures 6 and 7 of the drawings, a method of call origination between a radio subscriber and a wireline party is shown that only assigns (211, 212) information resources of a trunked radio communication system at a time (208, 210) when the called party answers the call, whereby efficiency and capacity of the trunked system is improved.
摘要:
An electrolyte system (40) for use in connection with an electrochemical cell (10). The cell (10) includes a positive (20) and a negative (30) electrode and the electrolyte system (40) disposed therebetween. The electrolyte system includes a liquid electrolyte adapted to provide ion transport between the positive and negative electrodes and a segmented block copolymeric support structure for engaging the liquid electrolyte.
摘要:
A graded-channel semiconductor device (10) includes a substrate region (11) having a major surface (12). A source region (13) and a drain region (14) are formed in the substrate region (11) and are spaced apart to form a channel region (16). A doped region (18) is formed in the channel region (16) and is spaced apart from the source region (13), the drain region (14), and the major surface (12). The doped region (18) has the same conductivity type as the channel region (16), but has a higher dopant concentration. The device (10) exhibits an enhanced punch-through resistance and improved performance compared to prior art short channel structures.
摘要:
A mask (12) is applied to a silicon carbide substrate (11) in order to etch the substrate (11). The material used for the mask (12) has a Mohs hardness factor greater than 4 in order to prevent sputtering material from the mask (12) onto the substrate (11). An oxygen and sulfur hexafluoride plasma is utilized to perform the etch.
摘要:
A method for forming a graded-channel field effect transistor includes providing a substrate (10) with an overlying gate electrode (14, 16). A spacer (23) is formed on only the drain side of the electrode. A graded-channel region (36) is formed aligned to the source side of the electrode while the spacer protects the drain side of the channel region. Source/drain regions (38) are formed, the spacer is removed, and then a drain extension region (40) is formed aligned to the drain side of the electrode.
摘要:
A vertically integrated sensor structure (60) includes a base substrate (71) and a cap substrate (72) bonded to the base substrate (71). The base substrate (71) includes a transducer (78) for sensing an environmental condition. The cap substrate (72) includes electronic devices (92) formed on one surface to process output signals from the transducer (78). The sensor structure (60) provides an integrated structure that isolates sensitive components from harsh environments.
摘要:
A short wavelength VCSEL including a mirror stack (10) positioned on a substrate (11), formed of a plurality of pairs of relatively high and low index of refraction layers a second mirror stack (15) formed of a plurality of pairs of relatively high and low index of refraction layers, an active region (12) sandwiched between the first stack (10) and the second stack (15), the active region (12) being formed of quantum well layers (20, 21, 22) of GaAsP having barrier layers (25, 26) of GaInP sandwiched therebetween, the quantum well (20, 21, 22) and barrier layers (25, 26) having substantially equal and opposite lattice mismatch.
摘要:
A method for reading and restoring data in a FERAM (10) is provided. The FERAM (10) comprises a FET (11) and a ferroelectric capacitor (12). The FET (11) has a gate connected to a word line (14), a source coupled to a plate line (15) via the ferroelectric capacitor (12), and a drain connected to a bit line (16). The reading process begins by placing a predetermined amount of charge in a bit line capacitor (17), which in turn charges the ferroelectric capacitor (12) after the FET (11) is switched on, resulting in a voltage drop determined by data stored in the FERAM (10) at the bit line (16). A sense amplifier (18) adjusts the voltage at the bit line (16) accordingly to read data from the FERAM (10). Applying a voltage at the plate line (15) and switching the FET (11) off restore the data to the FERAM (10).
摘要:
A non-volatile memory cell (10) is provided employing two transistors (11, 12) connected in series. A floating gate structure (13), formed with a single polysilicon deposition, is shared by each transistor (11, 12) to store the logic condition of the memory cell (10). To program and erase the memory cell (10), a voltage potential is placed on the floating gate (13) which modulates the transistors (11, 12) so only one is conducting during read operations. The gate capacitance of the transistors (11, 12) is used to direct the movement of electrons on or off the floating gate structure (13) to place or remove the stored voltage potential. The two transistor memory cell (10) couples one of two voltage potentials as the output voltage so no sense amp or buffer circuitry is required. The memory cell (10) can be constructed using traditional CMOS processing methods since no additional process steps or device elements are required.