Abstract: A photo resist layer is used to protect a dielectric layer and conductive elements embedded in the dielectric layer when patterning an etch stop layer underlying the dielectric layer. The photo resist layer may further be used to etch another dielectric layer underlying the etch stop layer, where etching the next dielectric layer exposes a contact, such as a gate contact. The bottom layer can be used to protect the conductive elements embedded in the dielectric layer from a wet etchant used to etch the etch stop layer.

Abstract: This application relates to the field of lighting, and discloses an LED filament. The LED filament includes an LED chip unit, a light conversion layer, and an electrode. The light conversion layer covers the LED chip unit and part of the electrode, and a color of a light emitted by the LED filament after lighting is different from a color of the light conversion layer. This application has the characteristics of uniform light emission and good heat dissipation effect.

Abstract: An LED tube lamp includes a first and second members and a connection member. Each of the first and second members includes lighting part and an end part. Each lighting part includes LED light strip. The connection member includes electrical connection portions and joining portions for the first and second members. The connection member connects the first member with the second member by the joining portions and the electrical connection portions and makes the first member substantially coaxial to the second member.

Abstract: A method includes forming isolation regions extending into a semiconductor substrate. A semiconductor strip is between the isolation regions. The method further includes recessing the isolation regions so that a top portion of the semiconductor strip protrudes higher than top surfaces of the isolation regions to form a semiconductor fin, measuring a fin width of the semiconductor fin, generating an etch recipe based on the fin width, and performing a thinning process on the semiconductor fin using the etching recipe.

Abstract: An LED tube lamp includes a first and second members and a connection member. Each of the first and second members includes lighting part and an end part. Each lighting part includes LED light strip. The connection member includes electrical connection portions and joining portions for the first and second members. The connection member connects the first member with the second member by the joining portions and the electrical connection portions and makes the first member substantially coaxial to the second member.

Abstract: An LED tube lamp, comprising: a lamp tube; a first circuit board, disposed in the lamp tube, having a plurality of light sources mounted thereon; two lamp caps disposed at respective ends of the lamp tube; and a power supply substantially disposed in one or both of the two lamp caps, the power supply having a second circuit board, the second circuit board is electrically connected to the first circuit board. The lamp cap includes a body and an insulating portion, the insulating portion constitutes at least a part of an end of the lamp cap, the insulating portion has an inner side surface, and a slot is set on the inner side surface, the second circuit board is inserted into the slot for fastening.

Abstract: An LED tube lamp, comprising: a lamp tube; a first circuit board, disposed in the lamp tube, having a plurality of light sources mounted thereon; two lamp caps disposed at respective ends of the lamp tube; a power supply substantially disposed in one or both of the two lamp caps, the power supply having a second circuit board; and a connection structure having a third circuit board, the third circuit board for connecting the first circuit board to the second circuit board thereby connecting the light sources to the power supply.

Abstract: An LED tube lamp, comprising: a lamp tube; a first circuit board, disposed in the lamp tube, having a plurality of light sources mounted thereon; two lamp caps disposed at respective ends of the lamp tube; and a power supply substantially disposed in one or both of the two lamp caps, the power supply having a second circuit board, the second circuit board is electrically connected to the first circuit board. The lamp cap includes a body and an insulating portion, the insulating portion constitutes at least a part of an end of the lamp cap, the insulating portion has an inner side surface, and a slot is set on the inner side surface, the second circuit board is inserted into the slot for fastening.

Abstract: An LED tube lamp comprises a lamp tube, a first circuit board disposed in the lamp tube having a plurality of light sources mounted thereon, and two lamp caps respectively disposed at both ends of the lamp tube and having a power supply disposed in the lamp caps. The power supply has a second circuit board with a first surface and a second surface opposite and parallel to each other. The lamp cap comprises a side wall, an end wall, and a slot with a first rib. There is a coupling structure protruded on the first rib with respect to the first surface of the second circuit board.

Abstract: An LED tube lamp, comprising: a lamp tube; a first circuit board, disposed in the lamp tube, having a plurality of light sources mounted thereon; two lamp caps disposed at respective ends of the lamp tube; a power supply substantially disposed in one or both of the two lamp caps, the power supply having a second circuit board; and a connection structure having a third circuit board, the third circuit board for connecting the first circuit board to the second circuit board thereby connecting the light sources to the power supply.

Abstract: An LED tube lamp comprises a lamp tube, a first circuit board disposed in the lamp tube having a plurality of light sources mounted thereon, and two lamp caps respectively disposed at both ends of the lamp tube and having a power supply disposed in the lamp caps. The power supply has a second circuit board with a first surface and a second surface opposite and parallel to each other. The lamp cap comprises a side wall, an end wall, and a slot with a first rib. There is a coupling structure protruded on the first rib with respect to the first surface of the second circuit board.

Abstract: A method for calibrating a feeder for a surface mounting device (SMD) includes the steps of: reading a standard coordinate value; setting controlling parameters including a predefined amount of materials to be delivered and a predefined range of a coordinate deviation; booting the feeder (22) to deliver materials via an operation controller (20); capturing delivered material images of the materials and gear images of the feeder via an image controller (24); calculating coordinate deviations of the captured images; analyzing whether a total delivered amount of the materials is equal to the predefined amount; and calibrating the feeder according to the calculated coordinate deviations if the total delivered amount of the materials is equal to the predefined amount. A system for calibrating a feeder for a surface mounting device (SMD) is also disclosed.

Abstract: A method for calibrating a feeder for a surface mounting device (SMD) includes the steps of: reading a standard coordinate value; setting controlling parameters including a predefined amount of materials to be delivered and a predefined range of a coordinate deviation; booting the feeder (22) to deliver materials via an operation controller (20); capturing delivered material images of the materials and gear images of the feeder via an image controller (24); calculating coordinate deviations of the captured images; analyzing whether a total delivered amount of the materials is equal to the predefined amount; and calibrating the feeder according to the calculated coordinate deviations if the total delivered amount of the materials is equal to the predefined amount. A system for calibrating a feeder for a surface mounting device (SMD) is also disclosed.