Method for increasing jetting gluing quality and gluing device

Abstract

The invention discloses a method for increasing jetting gluing quality. The method comprises the following steps: performing degreasing treatment on the surface of an inner wall of a jetting chamber; performing roughening treatment: roughening the inner wall of the jetting chamber for improving the roughening degree of the inner wall of the jetting chamber; cleaning the inner wall of the jetting chamber; and then coating a polytetrafluoroethylene layer on the surface of the inner wall of the jetting chamber. When a high-viscosity glue solution moves relative to the smooth polytetrafluoroethylene layer, the pressure, including driving force, resistance, and the like, exists along the flowing direction. The polytetrafluoroethylene layer is arranged, so that the resistance of the glue drop along the flowing direction can be effectively reduced, the driving resultant force along the motion direction can be increased, the external force for driving the high-viscosity glue solution to flow can be effectively increased, the directions of the acting forces can be more consistently pointed to a jet orifice, the high-viscosity glue solution can be more easily, quickly and stably jetted, the gluing forming quality can be increased, and the jetting gluing efficiency can be increased. The invention also provides a gluing device capable of achieving the same technical effect.

Description

technical field [0001] The invention relates to the technical field of microelectronic packaging, and further relates to a method for improving the quality of jet dispensing and a dispensing device. Background technique [0002] Liquid dispensing technology is a key technology in the field of microelectronic packaging. This technology accurately distributes fluid in a specific way, and can transfer fluid of ideal size to a suitable position on the workpiece, and construct points, lines, surfaces, etc. Various patterns in the form of mechanical or electrical connections between components. [0003] Jet dispensing does not rely on gravity or surface tension to separate the fluid, but by applying a sufficient force to the fluid, the fluid is automatically separated and sprayed, and the speed of dispensing is greatly improved. Due to its non-contact and high efficiency, jet dispensing technology has been more and more widely used. Because the theoretical research and practical...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method and a dispensing device for improving the quality of jet dispensing. High-viscosity glue is more likely to be sprayed out at a high speed and in a stable state, which solves the difficult problem of high-viscosity glue injection in the current technology and improves dispensing molding. quality while increasing jet dispensing efficiency

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