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Kwan, Singapore
Hoe Chuan Kwan, Singapore SG
| Patent application number | Description | Published |
|---|---|---|
| 20090155114 | COMPRESSOR STRUCTURE FOR A REFRIGERATION SYSTEM - A compressor structure for a refrigeration system and a component for a refrigeration system. The compressor structure comprises a compression cylinder; a suction line leading gas to be compressed towards the cylinder; and a discharge line leading the compressed gas away from the cylinder; wherein at least one component of the suction line, the discharge line, or both comprises a thermal barrier layer on a surface of the at least one component. | 06-18-2009 |
Ka Shing Kwan, Singapore CN
| Patent application number | Description | Published |
|---|---|---|
| 20090045244 | WIRE BONDING APPARATUS COMPRISING ROTARY POSITIONING STAGE - A wire bonding apparatus, comprising a bonding tool mounted on a bondhead body which is in turn mounted on a positioning table, is provided for bonding electronic devices. The positioning table has first and second motors coupled to it that are operative to drive the bondhead body to positions along respective first and second orthogonal axes. The bondhead body is connected to the positioning table through a pivot such that the bondhead body is rotatable relative to the positioning table about a third axis which is substantially orthogonal to the first and second axes. Further, a third motor drives the bondhead body to rotate about the third axis. | 02-19-2009 |
Ka Shing Kenny Kwan, Singapore SG
| Patent application number | Description | Published |
|---|---|---|
| 20080271851 | TEMPERATURE CONTROL OF A BONDING STAGE - A bonding apparatus is provided comprising a bonding stage for holding a bonding tool, an air distribution system mounted to the bonding stage and an air inlet attached to the air distribution system. The air distribution system is connected to the air inlet for receiving air from the air inlet, and is operative to pass the air over multiple surfaces of the bonding stage for the purpose of temperature control. | 11-06-2008 |
| 20080272178 | VACUUM WIRE TENSIONER FOR WIRE BONDER - A wire tensioner is provided for a wire bonder, the wire tensioner comprising a tubular body having a bore through which bonding wire is receivable and a bore outlet at an end of the tubular body from which the bonding wire is extendable towards a bonding tool. A chamber is formed next to the bore outlet that substantially encloses the bore outlet, the chamber including an air inlet connected to it that is operative to introduce clean air into the chamber. A vacuum outlet is connected to a side of the tubular body and is in fluid communication with the chamber via the bore, the vacuum outlet being operative to draw air from the bore outlet through the bore whereby to pull the wire. | 11-06-2008 |
| 20080272179 | THERMAL INSULATION FOR A BONDING TOOL - A bonding apparatus comprising a bond arm and a wire bonding tool mounted to the bond arm is provided with thermal insulation in the form of a thermal shield substantially enclosing the bonding tool for insulating the bonding tool from ambient heat. | 11-06-2008 |
| 20080274325 | MULTI-LAYER THERMAL INSULATION FOR A BONDING SYSTEM - A thermal insulation system is provided for a component of a bonding system, such as an optical system. The thermal insulation system comprises multiple insulation layers located between the component and a heat source. The multiple insulation layers comprise at least one layer of moving air injected into the layer and a cover layer enclosing the layer of moving air. The multiple insulation layers may further comprise a layer of static air. | 11-06-2008 |
Mun Hoe Stanley Kwan, Singapore SG
| Patent application number | Description | Published |
|---|---|---|
| 20110009540 | POLYMER DISPERSIONS CONTAINING PHOSPHOROUS POLYMERS AND EMULSIFIERS - The present invention relates to the use of a polymer dispersion (PD) comprising at least one polymer (P), obtainable by free-radical emulsion polymerization of at least one ethylenically unsaturated monomer (M1) and at least one monomer (M2) different therefrom and selected from esters of phosphonic acid or of phosphoric acid with unalkoxylated or alkoxylated hydroxyalkyl (meth)acrylates, and at least one emulsifier (E) selected from phosphoric esters with unalkoxylated or alkoxylated C | 01-13-2011 |