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Ceramic substrate surface white oil treatment process

A technology of ceramic substrate and processing technology, which is applied in the field of white oil treatment technology on the surface of ceramic substrate, can solve the problems of white oil falling off, achieve the effect of improving product quality and avoiding bad copper exposure

Inactive Publication Date: 2020-03-27
XIAN BAIXIN CHUANGDA ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a white oil treatment process on the surface of ceramic substrates, which can effectively solve the problem that the existing white oil treatment methods will cause large areas of white oil in subsequent processes. shedding problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A white oil treatment process on the surface of a ceramic substrate, comprising the following steps:

[0027] (1) Sand blast the ceramic substrate to remove oxides and pollutants on the surface of the ceramic substrate.

[0028] (2) Take the white oil and add diluent to the white oil. The dosage of the added diluent is: 10ml / kg white oil; mix the white oil and diluent evenly, and let it stand for 35 minutes to remove air bubbles.

[0029] (3) Using screen printing, print the diluted white oil onto the surface of the ceramic substrate. The mesh size of the screen used for screen printing is 22T, the number of times of brushing oil is 1 time, the pressure of the scraper is adjusted to 4N, and the speed of the scraper is 4m / min.

[0030] (4) Place the printed white oil horizontally and let it stand for 40 minutes.

[0031] (5) Use an oven to bake the ceramic substrate printed with white oil for the first time. The baking temperature is 70°C and the baking time is 20 minu...

Embodiment 2

[0036] A white oil treatment process on the surface of a ceramic substrate, comprising the following steps:

[0037] (1) Sand blast the ceramic substrate to remove oxides and pollutants on the surface of the ceramic substrate.

[0038] (2) Take the white oil and add diluent to the white oil. The dosage of the added diluent is: 50ml / kg of white oil; mix the white oil and diluent evenly, and let it stand for 40 minutes to remove air bubbles.

[0039] (3) Using screen printing, print the diluted white oil onto the surface of the ceramic substrate. The stencil mesh used for screen printing is 36T, the number of times of brushing oil is 2 times, the pressure of the scraper is adjusted to 6N, and the speed of the scraper is 6m / min.

[0040] (4) Place the printed white oil horizontally and let it stand for 40 minutes.

[0041] (5) Use an oven to bake the ceramic substrate printed with white oil for the first time. The baking temperature is 80°C and the baking time is 30 minutes.

...

Embodiment 3

[0046] A white oil treatment process on the surface of a ceramic substrate, comprising the following steps:

[0047] (1) Sand blast the ceramic substrate to remove oxides and pollutants on the surface of the ceramic substrate.

[0048] (2) Take the white oil and add diluent to the white oil. The dosage of the added diluent is: 35ml / kg of white oil; mix the white oil and diluent evenly, and let it stand for 50 minutes to remove air bubbles.

[0049] (3) Using screen printing, print the diluted white oil onto the surface of the ceramic substrate. The mesh size of the screen used for screen printing is 28T, the number of times of brushing oil is 2 times, the pressure of the scraper is adjusted to 5N, and the speed of the scraper is 5m / min.

[0050] (4) Place the printed white oil horizontally and let it stand for 50 minutes.

[0051] (5) Use an oven to bake the ceramic substrate printed with white oil for the first time. The baking temperature is 75°C and the baking time is 25 ...

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Abstract

The invention discloses a ceramic substrate surface white oil treatment process which comprises the following steps: (1) carrying out sand blasting on a ceramic substrate to remove oxides and pollutants on the surface of the ceramic substrate; (2) taking white oil and adding a diluent into the white oil; (3) printing the diluted white oil on the surface of the ceramic substrate by using silk-screen printing; (4) horizontally placing the printed white oil, and standing for more than 30 minutes; (5) baking the ceramic substrate printed with the white oil for the first time by using an oven; (6)using an exposure machine for exposing the ceramic substrate to manufacture a circuit, the exposure energy and time being based on the first piece, and the developing speed being set to be 1.3-1.6 m / min; and (7) baking the developed ceramic substrate for the second time. By the adoption of the technology, it is guaranteed that in the subsequent manufacturing process, large-area falling of the white oil caused by attack of silver deposition liquid medicine after silver melting is avoided, the undesirable copper exposure phenomenon is avoided, and therefore the product quality can be better improved.

Description

technical field [0001] The invention relates to the technology in the field of manufacturing ceramic substrates, in particular to a white oil treatment process on the surface of ceramic substrates. Background technique [0002] At present, in the DPC ceramic substrate of the prior art, in order to improve the light reflectivity after packaging, a layer of 8-10um white oil layer is directly filled in the trench, and then gold is deposited on the surface. The technical problem existing in the prior art is that the formation of the white oil layer is relatively simple, resulting in a large area of ​​white oil falling off in the subsequent process, resulting in the undesirable phenomenon of copper exposure. Therefore, it is necessary to study a scheme to solve the above problems. Contents of the invention [0003] In view of this, the present invention aims at the deficiencies of the existing technology, and its main purpose is to provide a white oil treatment process on the ...

Claims

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Application Information

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IPC IPC(8): H01L21/48H05K3/00H05K3/06
CPCH01L21/4807H01L21/481H01L21/4846H05K3/0091H05K3/06
Inventor 吴朝晖孔仕进
Owner XIAN BAIXIN CHUANGDA ELECTRONICS TECH CO LTD