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COF Film production method and vertical oven

A production method and vertical technology, applied in lighting and heating equipment, coating, drying and other directions, can solve problems such as ICBumpOpenICBumpShort defect, achieve the effect of overcoming uneven heating and reducing defect rate

Inactive Publication Date: 2019-12-20
合肥奕斯伟材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects in the above-mentioned background technology, the present invention provides a COF Film production method, which solves the problems of bad IC Bump Open and IC Bump Short on the tape cycle in the prior art

Method used

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  • COF Film production method and vertical oven
  • COF Film production method and vertical oven
  • COF Film production method and vertical oven

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 2 , a kind of upright oven, comprises oven 1, and this oven 1 is made up of box top, box bottom, left box side, right box side, front box side and back box side, box top, box bottom, left box side, right box side, The front box side and the rear box side form a cavity 2, an air inlet area 4 is arranged on the top of the box, an air inlet 5 is arranged in the air inlet area 4, and an air inlet 3 is arranged on the top of the box, and the air inlet 3 is located at the air inlet outside area 4.

[0025] In this embodiment, it should be further noted that the air inlet area 4 is preferably square.

[0026] In this embodiment, it should be further explained that the area of ​​the air inlet 3 is larger than the area of ​​the air inlet 5 .

[0027] In this embodiment, it should be further noted that the air inlet 5 may be square, circular or oval.

[0028] In this embodiment, it should be further noted that the air outlet 3 may be square, circular or oval. ...

Embodiment 2

[0035] Embodiment 2 temperature uniformity test in the oven

[0036] Respectively to embodiment 1 (at this time, the air inlet and the air inlet are circular, and the area of ​​the air inlet is larger than the area of ​​the air inlet) and comparative example 1 (at this moment, the air outlet and the air inlet are all circular, and the area of ​​the air outlet is larger than Air inlet area) vertical oven to test the temperature uniformity in the oven, 120°C is the set temperature, and the distribution of test points is as follows: image 3 (The positions of the detection points of the two ovens are the same, and the temperature sensors are placed at the detection points. Except for the bottom surface, there are two temperature sensors on each of the other surfaces, which are in diagonal positions, and the two adjacent surfaces are staggered. There are 10 Sensors in total. Each detection Each point has been measured 3 times), and the test results are as follows in Table 1:

[0...

Embodiment 3

[0042] Embodiment 3 reduces defective rate

[0043] The ovens of Example 1 and Comparative Example 1 were used for the production of COF Film respectively, except that the ovens were different, all the other production process conditions and equipment were the same, and the produced COF Film product rolls were subjected to quality inspection (IC Bump Open and IC Bump Short detection), the detection results are as follows in Table 3:

[0044] Table three

[0045]

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PUM

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Abstract

The invention discloses a COF Film production method and a vertical oven. The method comprises a baking process for baking a to-be-baked material in the oven, during baking, hot air enters the oven from an air inlet formed in the top of the oven, exhaust air is sucked and exhausted by an exhaust port from the top of the oven, return air returns an air blower from the bottom of the oven and entersthe oven again from the air inlet at the top after heating and air supplement, the process is repeated, and the exhaust port (3) is located outside an air inlet area (4). The IC Bump Open and IC BumpShort reject ratio is reduced.

Description

technical field [0001] The invention relates to COF Film production, in particular to a COF Film production method and an upright oven. Background technique [0002] In the production process of COF Film, the baking operation needs to be carried out in time after tin plating and ink coating. In the existing process, a vertical oven is used. When baking, such as figure 1 , the hot air F1 is blown in from the side of the oven, and after entering the oven, it is reflowed, and the return air F2 is discharged from the lower side of the side and returned to the blower F3 for heating and blasting circulation. So as to achieve the purpose of baking. The COF Film tape and reel products are sent to the packaging and testing factory & IC factory. [0003] Packaging and testing factory & IC factory used COF Film reel products to report that there is a bad IC bump problem, specifically IC Bump Open and IC Bump Short defects periodically appear on the reel tape. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B9/06F26B21/04B05D3/04
CPCB05D3/0413F26B9/06F26B21/04
Inventor 薛红伟吴昱蓉
Owner 合肥奕斯伟材料技术有限公司
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