Roller design method suitable for COF tin baking

Abstract

The invention provides a roller design method suitable for COF tin baking and relates to the technical field of COF baking. The method comprises steps that S1, the baking temperature in a COF tin linear baking oven is determined, and the deformation degree of a product in the baking oven at different temperatures is observed and recorded; S2, on the basis of a normal roller, according to the deformation degree of a product, the roller is made to have a radian, and the length of the roller is reduced; and S3, when the product is subjected to linear baking and carrying, that the bending amount of the product is consistent with the radian of the roller is ensured, and the product can be tightly attached to the roller during carrying. The method is advantaged in that the roller has a certain radian, so a product can still be in close contact with the roller after being heated to deform, perfect carrying is realized, the situation that the product is scratched due to contact with the rollerwhen being bent is prevented, moreover, the product is uniformly heated, the baking effect is good, operation steps in the prior art are reduced, and production cost of enterprises is reduced.

Description

technical field [0001] The invention relates to the technical field of COF baking, in particular to a roller design method suitable for COF tin baking. Background technique [0002] In recent years, electronic products have been increasingly miniaturized and thinned. Based on this trend, the structure of electronic components and their carriers has to be further refined and refined, which directly makes the precision requirements for bonding ICs become In the production of COF, in order to protect the circuit and subsequent IC bonding after the product is formed, a tin layer will be formed on the surface of the copper circuit of the product, because the tin is placed at room temperature for a long time. , it will cause product defects due to its unstable properties. Therefore, after the completion of tin melting, high temperature baking is usually performed to stabilize the properties of tin and prevent defects. [0003] For linear baking after tinning, the temperature is u...

AI Technical Summary

Problems solved by technology

[0004] Although the existing method of baking the whole roll can barely achieve the baking effect, but because of the uneven heating, the baking in different areas is not uniform, and because the whole roll is baked, it needs to be rolled into the isolation belt , the purchase of the isolation belt increases the cost of raw materials; at the same time, the roll-in and roll-out of the isolation belt also increases the operation steps and increases the production cost

Images