Tjahjono
Budi Tjahjono, New South Wales AU
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20090183768 | TRANSPARENT CONDUCTORS FOR SILICON SOLAR CELLS - A photovoltaic device is provided in which a contact structure is formed having a plurality of heavily doped semi-conductor channels formed on a surface of a region to be contacted. The heavily doped semiconductor channels are of the same dopant polarity as the region to be contacted, and form lateral conduction paths across the surface of the region to be contacted. Contact metallisation comprising conductive fingers are formed over the surface of the region to be contacted, and each conductive finger crosses at least some of the heavily doped channels to make electrical contact therewith. The contact structure is formed by forming a layer of dopant source material over the surface to be contacted, and laser doping heavily doped channels in the surface to be contacted. The contact metallisation is then formed as conductive fingers formed over the surface to be contacted and may be screen printed, metal plated or may be formed as buried contacts. | 07-23-2009 |
20150318413 | PHOTOVOLTAIC DEVICE STRUCTURE AND METHOD - A surface region of a semiconductor material on a surface of a semiconductor device is doped during its manufacture, by coating the surface region of the semiconductor material with a dielectric material surface layer and locally heating the surface of the semiconductor material in an area to be doped to locally melt the semiconductor material with the melting being performed in the presence of a dopant source. The heating is performed in a controlled manner such that a region of the surface of the semiconductor material in the area to be doped is maintained in a molten state without refreezing for a period of time greater than one microsecond and the dopant from the dopant source is absorbed into the molten semiconductor. | 11-05-2015 |
Budi Tjahjono, Sydney AU
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20090008787 | HIGH EFFICIENCY SOLAR CELL FABRICATION - A method of forming a contact structure and a contact structure so formed is described. The structure contacts an underlying layer of a semiconductor junction, wherein the junction comprises the underlying layer of a semiconductor material and is separated from an overlying layer of semiconductor material by creating an undercut region to shade subsequent metal formation. Various steps are performed using inkjet printing techniques. | 01-08-2009 |
Budi Tjahjono, Kensington AU
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20120125424 | PHOTOVOLTAIC DEVICE STRUCTURE AND METHOD - A surface region of a semiconductor material on a surface of a semiconductor device is doped during its manufacture, by coating the surface region of the semiconductor material with a dielectric material surface layer and locally heating the surface of the semiconductor material in an area to be doped to locally melt the semiconductor material with the melting being performed in the presence of a dopant source. The heating is performed in a controlled manner such that a region of the surface of the semiconductor material in the area to be doped is maintained in a molten state without refreezing for a period of time greater than one microsecond and the dopant from the dopant source is absorbed into the molten semiconductor. The semiconductor device includes a semiconductor material structure in which a junction is formed and may incorporate a multi-layer anti-reflection coating. The anti-reflection coating is located on a light receiving surface of the semiconductor material structure and comprises a thin layer of thermal expansion mismatch correction material having a thermal expansion coefficient less than or equal to that of the semiconductor material, to provide thermal expansion coefficient mismatch correction. An anti-reflection layer is provided having a refractive index and thickness selected to match the semiconductor material structure so as to give good overall antireflection properties to the solar cell. | 05-24-2012 |
Budi Tjahjono, Yilan County TW
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20140251421 | SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing solar cell includes providing a semiconductor substrate. A coating layer is then formed on a plurality of sides. Subsequently, an anti-reflective layer is formed on the layer. Finally at least one first electrode and at least one second electrode are formed. The first and second electrodes respectively and electrically connect to the second conductive amorphous substrate and the semiconductor substrate. The potential induced degradation is greatly reduced. | 09-11-2014 |
20150096613 | PHOTOVOLTAIC DEVICE AND METHOD OF MANUFACTURING THE SAME - The invention provides a photovoltaic device and method of manufacturing the same. The photovoltaic device of the invention includes a semiconductor structure assembly and a protection layer. The semiconductor structure assembly has a plurality of side surfaces, and includes a p-n junction, an n-p junction, a p-i-n junction, an n-i-p junction, a tandem junction or a multi-junction. In particular, the protection layer is formed to overlay the sides of the semiconductor structure assembly. Thereby, the protection layer can effectively inhibit the potential-induced degradation effect of the photovoltaic device of the invention. | 04-09-2015 |
Budi Tjahjono, Hsinchu TW
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20160005915 | METHOD AND APPARATUS FOR INHIBITING LIGHT-INDUCED DEGRADATION OF PHOTOVOLTAIC DEVICE - A method for inhibiting light-induced degradation of a photovoltaic device includes steps of: a) subjecting the photovoltaic device to an illumination treatment using a light having a wavelength not less than 300 nm to heat the photovoltaic device in the absence of ambient light; and b) maintaining the temperature of the photovoltaic device above an annealing temperature of the photovoltaic device for at least 0.5 minute. An apparatus for inhibiting light-induced degradation of a photovoltaic device is also disclosed. | 01-07-2016 |
Budi Santoso Tjahjono, Wujie Township, Yilan County TW
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20160005903 | SOLAR CELL METALLISATION AND INTERCONNECTION METHOD - A solar cell and a method of forming a contact structure on a solar cell having a p-n junction formed between a first semiconductor region of a first dopant polarity and a second semiconductor region of a second dopant polarity opposite to the first dopant polarity. The method comprises: forming a plurality of contact points on a surface of the solar cell, whereby the contact points provide an electrical connection to the first semiconductor region; and locating a plurality of conducting wires over the solar cell to make electrical connection to the contact points. The contact points are either an exposed silicon surface or a silicon surface over which metal pads are formed. The metal pads may comprise a plated layer of a low-melting temperature metal and/or may have a thickness of less than 5 microns. | 01-07-2016 |
Budi Santoso Tjahjono, Kensington Nsw AU
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20120282722 | METALLIZATION METHOD FOR SILICON SOLAR CELLS - A method of forming contacts on a surface emitter of a silicon solar cell is provided. In the method an n-type diffusion of a surface is performed to form a doped emitter surface layer that has a sheet resistance of 10-40 Ω/□. The emitter surface layer is then etched back to increase the sheet resistance of the emitter surface layer. Finally the surface is selectively plated. | 11-08-2012 |
Danu Tjahjono, Dublin, CA US
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20140068750 | ESTABLISHING AN IPSEC (INTERNET PROTOCOL SECURITY) VPN (VIRTUAL PRIVATE NETWORK) TUNNEL - Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, and establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node. | 03-06-2014 |
20150033325 | ESTABLISHING AN IPSEC (INTERNET PROTOCOL SECURITY) VPN (VIRTUAL PRIVATE NETWORK) TUNNEL AND ENCAPSULATING NON-IP PACKETS - Systems, methods and apparatuses of establishing an IPsec (Internet Protocol Security) VPN (Virtual Private Network) tunnel are disclosed. One method includes receiving, by a wireless mesh network access point, a user configuration, wherein the user configuration includes a type of traffic, determining an internal interface of the wireless mesh network access node based on the type of traffic, dynamically determining a local endpoint address for the IPsec VPN tunnel based on the selected internal interface, establishing the IPsec VPN tunnel through the selected internal interface of the wireless mesh network access node, and encapsulating non-IP packets of non-IP traffic within IP packets. | 01-29-2015 |
20150200735 | DISTRIBUTION OF BROADCAST TRAFFIC THROUGH A MESH NETWORK - Systems, methods and apparatuses for supporting broadcast traffic through a wireless mesh network are disclosed. One method includes obtaining broadcast listening information of a broadcast listening access node, wherein the broadcast listening information includes an identifier of the broadcast listening access node, and a broadcast identifier of the broadcast listening device. The method further includes obtaining broadcast sourcing information of a broadcast sourcing access node, wherein the broadcast sourcing information includes an identifier of the broadcast sourcing access node, and a broadcast identifier of the broadcast sourcing device. The method further includes providing broadcast listening information of the broadcast listening access node to the broadcast sourcing access node upon determining the broadcast identifier of the broadcast sourcing device matches the broadcast identifier of the broadcast listening device. | 07-16-2015 |
20150201312 | DISTRIBUTION OF MULTICAST TRAFFIC THROUGH A MESH NETWORK - Systems, methods and apparatuses for distributing multicast traffic through a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive a unicast IP packet that includes a special destination IP address through at least one of the one or more transceivers, determine, based on the special destination IP address and a multicast group ID of a multicast distribution table, whether to forward the unicast IP packet to a downstream device, and route the unicast IP packet to the downstream device based on the determination. | 07-16-2015 |
20150201323 | ENCAPSULATING RECEIVED MULTICAST TRAFFIC IN UNICAST IP PACKETS TO SUPPORT DISTRIBUTION OF MULTICAST TRAFFIC THROUGH A MESH NETWORK - Systems, methods and apparatuses of supporting multicast traffic of a wireless mesh network are disclosed. One apparatus includes an access node that includes one or more transceivers for communicating with other devices of a wireless mesh network, and a processor. The processor is operative to receive multicast traffic from a multicast traffic source through the one or more transceivers, associate the multicast traffic with a multicast group ID, and encapsulate the received multicast traffic in unicast IP packets that include a special destination IP address associated with the multicast group ID. | 07-16-2015 |
Robby Tjahjono, San Bruno, CA US
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20080306805 | Method and Apparatus for Queue-Based Automated Staff Scheduling - The invention disclosed herein provides a queue-based scheduling system, which comprises an automated staff scheduling computer program that is highly flexible in enforcing scheduling rules. This flexibility comes from the ability to: (1) Define conditional and unconditional rules; (2) Rank the rules/requests in varying priority as represented by a numeric value assigned to each rule/request; and (3) Specify rules both per individual and per group. These three abilities synergistically produce an automatic scheduling system that can enforce a wide variety of scheduling rules and requirements seen in actual staff scheduling situations. Furthermore, all these abilities rely on using a queue per scheduled assignment to hold requests and rules. | 12-11-2008 |