Abstract: An angle adjusting mechanism for blinds blades has a main body and a driving unit. The worm gear of the driving unit is housed in the first container of the main body, and the worm and the connecting rod of the driving unit are positioned in the second container of the main body. The worm and the worm gear engage with each other, and the pivot extension at the end of the connecting rod is located at the second opening of the main body and does not protrude from the main body, which avoids transportation damage and greatly reduces the volume of the adjustment mechanism. For the purpose of quick disassembly and assembly, the driving rod of the driving unit is also assembled with the connecting rod, and of the driving rods are designed with several different sizes, so that the adjusting mechanism can change the driving rod at according to the size of the blinds blades.

Abstract: An angle adjusting mechanism for blinds blades has a main body and a driving unit. The worm gear of the driving unit is housed in the first container of the main body, and the worm and the connecting rod of the driving unit are positioned in the second container of the main body. The worm and the worm gear engage with each other, and the pivot extension at the end of the connecting rod is located at the second opening of the main body and does not protrude from the main body, which avoids transportation damage and greatly reduces the volume of the adjustment mechanism. For the purpose of quick disassembly and assembly, the driving rod of the driving unit is also assembled with the connecting rod, and of the driving rods are designed with several different sizes, so that the adjusting mechanism can change the driving rod at according to the size of the blinds blades.

Abstract: A folding device for a cordless blind includes a string spool and a force-return mechanism. The force-return mechanism includes a transmission shaft coupled to the string spool to turn therewith. A smaller bevel gear is connected to the transmission shaft and meshes with a larger bevel gear rotatable about a vertical axis. A first bobbin is coupled to the larger bevel gear to turn therewith. A spiral spring has two ends respectively engaged with the first bobbin and a second bobbin. Thus, the folding device can be used with a blind having a long shade. The smaller bevel gear presses against the larger bevel gear in a vertical direction and cooperates with the weight of the shade to provide an optional braking effect for the shade in a vertical direction.

Abstract: A method of high aspect ratio etching (HARE) of metal layers in quarter micron technology is disclosed. High aspect ratio patterns are encountered because of the shrinking lateral dimensions over the constant remaining thickness of the features of ultra large scaled integrated chips. HARE is accomplished by employing a tungsten W-hardmask with a high selectivity of 10:1 with respect to the immediately underlying aluminum-copper metal layer. In order to protect the lithographic integrity, overlying organic BARC is used to prevent reflections from the W-hardmask as well as from the underlying metal layer. The lithographic resolution is further improved by using a thin photoresist layer in combination with the high selectivity hardmask. In this manner, the tradeoff that normally has to be made between a high resolution process and a reliable metal etch is circumvented.