摘要:
A method for compensating for variations in timing of data sent to a processor on data bit lines relative to a strobe clock sent to the processor on a strobe clock line that can be used in a dual data rate (DDR) memory identifies discrete minimum and maximum time offset values for test data in selected data bit patterns for the data bit lines. The discrete minimum time offset value is the minimum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock and the discrete maximum time offset value is a maximum timing adjustment required to allow the processor to receive the data in a steady-state condition during a data valid window of the strobe clock. The discrete minimum and maximum time offset values identify a valid range when the data bit lines supply data in a steady-state condition for latching into the processor by the strobe clock.
摘要:
An improved, lower cost method of processing substrates, such as to create solar cells is disclosed. In addition, a modified substrate carrier is disclosed. The carriers typically used to carry the substrates are modified so as to serve as shadow masks for a patterned implant. In some embodiments, various patterns can be created using the carriers such that different process steps can be performed on the substrate by changing the carrier or the position with the carrier. In addition, since the alignment of the substrate to the carrier is critical, the carrier may contain alignment features to insure that the substrate is positioned properly on the carrier. In some embodiments, gravity is used to hold the substrate on the carrier, and therefore, the ions are directed so that the ion beam travels upward toward the bottom side of the carrier.
摘要:
An improved method of doping a substrate is disclosed. The method is particularly beneficial to the creation of interdigitated back contact (IBC) solar cells. A paste having a dopant of a first conductivity is applied to the surface of the substrate. This paste serves as a mask for a subsequent ion implantation step, allowing ions of a dopant having an opposite conductivity to be introduced to the portions of the substrate which are exposed. After the ions are implanted, the mask can be removed and the dopants may be activated. Methods of using an aluminum-based and phosphorus-based paste are disclosed.
摘要:
The manufacture of solar cells is simplified and cost reduced through by performing successive ion implants, without an intervening thermal cycle. In addition to reducing process time, the use of chained ion implantations may also improve the performance of the solar cell. In another embodiment, two different species are successively implanted without breaking vacuum. In another embodiment, the substrate is implanted, then flipped such that it can be and implanted on both sides before being annealed. In yet another embodiment, one or more different masks are applied and successive implantations are performed without breaking the vacuum condition, thereby reducing the process time.
摘要:
A technique for improving uniformity of a ribbon beam is disclosed. In one particular exemplary embodiment, an apparatus may comprise a first corrector-bar assembly and a second corrector-bar assembly, wherein the second corrector-bar assembly is located at a predetermined distance from the first corrector-bar assembly. Each of a first plurality of coils in the first corrector-bar assembly may be individually excited to deflect at least one beamlet in the ribbon beam, thereby causing the beamlets to arrive at the second corrector-bar assembly in a desired spatial spread. Each of a second plurality of coils in the second corrector-bar assembly may be individually excited to further deflect one or more beamlets in the ribbon beam, thereby causing the beamlets to exit the second corrector-bar assembly at desired angles.
摘要:
A SS7/PSTN network is monitored with non-intrusive hooks. Upon detecting or monitoring a signal event, combinational services are provided using one or more other communication channels.
摘要:
A technique for ion beam angle process control is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for ion beam angle process control in an ion implanter system. The method may comprise directing one or more ion beams at a substrate surface. The method may also comprise determining an average spread of incident angles at which the one or more ion beams strike the substrate surface. The method may further comprise adjusting the one or more ion beams based at least in part on the average spread of incident angles to produce a desired spread of ion beam incident angles.
摘要:
Customer relationships, particularly in a business-to-business environment, are evaluated and enhanced by generating actionable inferences through the measurement and analysis of both customer satisfaction and customer importance. Customer satisfaction information is captured from both an internal channel comprising key internal customer contacts or boundary employees, as well as an external channel comprising representatives from a plurality of identified respondent profile groups. Customer Importance is also considered in the overall analysis and interpretation of the customer satisfaction. By incorporating all the internally reported customer satisfaction, the externally obtained satisfaction figures and the customer importance scores, a framework is provided for the analysis of various relationships which can help to identify relationships that are in critical need of attention, isolate critical areas of improvement, and identify trends across various respondent profiles and lifecycle phases in a manner that optimizes the use of vendor organizational resources.
摘要:
An adaptive equalizer with a large data rate range is provided. The equalizer comprises an equalizer core, a slicer and an automatic gain control (AGC) loop. The equalizer core is coupled to an input signal from a transmission medium and applies a transfer function to the input signal to compensate for losses incurred in the transmission medium in order to generate a core output signal. The equalizer core is also coupled to a bandwidth control signal that controls a bandwidth of the transfer function. The slicer is coupled to the core output signal and converts the core output signal to a digital output signal having a fixed digital output swing that approximates a transmission swing of the input signal prior to transmission over the transmission medium. The AGC loop is coupled to the core output signal and the digital output signal and compares the core output signal with the digital output signal in order to generate the bandwidth control signal.
摘要:
Transmit amplitude independent adaptive equalizers are provided that compensate for transmission losses in an input signal when the transmit signal amplitude is unknown. Several embodiments are provided, including a first embodiment having an equalizer core, a controllable-swing slicer and an amplitude control loop, a second embodiment having an equalizer core, a fixed-swing slicer and a control loop, a third embodiment having an equalizer core, a variable gain amplifier, and a variable gain amplifier control loop, and a fourth embodiment having an equalizer core, a fixed-swing slicer, a variable gain amplifier, and a variable gain amplifier control loop.