45 results about "Marangoni effect" patented technology

The present invention discloses a puddle etching method of thin film. In a spin etching equipment, pre-wet the wafer by D.I. water and etch solution to remove the contamination and the upper layer of the film on the wafer. Then spin slowly (about 0-50 rpm) and inject etching solution to form a puddle of etching solution which will stay on the wafer, the wafer then keep spin slowly (about 0-50 rpm) such that the puddle of etching solution stay on the wafer and etching is going on by puddle etching. After the thin film is etched, the wafer is spin at higher speed, and D.I. water is injected to rinse. Then, IPA is used to remove the D.I. water by Marangoni effect. Finally raise the speed to dry the wafer.

The method for controlling ink migration onto a catcher of an ink jet print station from catch condition using a low surface tension ink entails bringing an ink jet print station using low surface tension ink into catch condition with the eyelid sealably engaging the catcher and the catcher flow pan, and using an eyelid actuator to unseal the eyelid forming a gap between the catcher flow pan, the catcher, and the eyelid. The method ends by operating the ink jet print station with the eyelid unsealed to suppress migration of the low surface tension ink onto the catcher during standby mode.

An apparatus for drying a substrate using the Marangoni effect is disclosed. The apparatus includes a rotatable supporting portion on which a substrate is placed. A first nozzle for supplying de-ionized water and a second nozzle for supplying isopropyl alcohol vapor are provided on the supporting portion. When the isopropyl alcohol vapor is supplied to the center of the substrate at the initial stage, the amount of alcohol that reaches the substrate is controlled by a controlling portion such that the amount of the second liquid gradually increases.

The invention belongs to the field of printing electronic device, and provides a preparation method of ink jet printing metal patterns, and the ink jet printing metal patterns obtained via application of the preparation method. The preparation method comprises following steps: a first ink is subjected to primary ink jet printing, strengthened coffee-ring effect treatment, and drying curing so as to obtain blocking layer lines; a second ink is subjected to secondary ink jet printing in grooves of the blocking layer lines, and is subjected to Marangoni effect treatment and crystal growth so as to obtain filled layer lines and obtain the metal patterns. According to the preparation method, in preparation of the groove-shaped blocking layer lines, the filled layer lines are prepared in the blocking layer lines, so that the thickness of the metal patterns is ensured to be uniform; in forming of the second pattern lines under Marangoni effect, the morphology of the second pattern lines is maintained via the blocking layer lines, and rapid sintering is not necessary, so that it is convenient for growth of conductive material crystals and crystal nucleus, and the obtain metal patterns are low in electrical resistivity, and high in electric conductivity.