Dust cleaning method for ceramic packaging products

By combining UV film and PVC film with a UV degumming machine and ultrasonic vibration, the problem of dust adsorption due to electrostatic charge on ceramic encapsulated products is solved, achieving efficient cleaning and avoiding product damage and resource waste.

CN115648613BActive Publication Date: 2026-04-28SUZHOU GOODARK ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU GOODARK ELECTRONICS CO LTD
Filing Date
2022-10-24
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Ceramic-encapsulated products cannot be used properly due to dust adsorption caused by static electricity. Existing antistatic cloth wiping methods are inefficient and easily damage the products, resulting in resource waste.

Method used

Dust on the product surface is removed by using UV film and PVC film to adhere to it. The UV adhesive is reduced by a UV de-adhesive machine and ultrasonic vibration is used to separate the product from the film.

Benefits of technology

This technology efficiently removes dust from the surface of ceramic-packaged products, preventing product scrapping, reducing costs, minimizing resource waste, and utilizing existing equipment readily available from chip manufacturers, thus avoiding additional equipment investment.

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Abstract

The present application relates to a kind of dust cleaning method for ceramic packaging product, comprising the following steps: UV film is attached on metal frame, forms film frame;Anti-static table top is wiped clean using non-woven fabric, and the product with dust is scattered on the table top;UV film has the one side of the film frame with glue, and is covered on the product on the table top, and the product is pasted on UV film;A layer of film is pasted on the product, and the film is pasted on UV film and product;Anti-static rolling wheel is repeatedly rolled to product, so that product and film are fully attached;The film of the other side of product is torn off;The film frame with product is placed in UV debonding machine and is debonded;Product is separated from UV film using ultrasonic vibration film frame.The present application can effectively remove dust on ceramic packaging product, and has strong practicability.
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Description

Technical Field

[0001] This invention relates to a dust cleaning method, specifically a dust cleaning method for ceramic encapsulation products. Background Technology

[0002] Ceramic-encapsulated chips are highly susceptible to static electricity due to the inherent properties of ceramics. Static electricity readily attracts dust, rendering the product unusable once a certain amount of dust accumulates. Cleaning is necessary. However, liquid cleaning methods are not suitable for small quantities of chips. Currently, anti-static cloths are used to wipe each chip individually. This is inconvenient due to the small size of the chips (the smallest has a surface area of ​​approximately 0.9 x 0.7 mm), and can easily damage the chips, rendering them unusable. When dealing with tens of thousands or more chips, this method becomes economically unviable, leading to the scrapping of large quantities and a waste of resources. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides a dust cleaning method for ceramic encapsulated products. The method uses UV film and PVC film to remove dust from the product, and uses a UV debonding machine to separate the product from the UV film. It has high working efficiency, excellent dust removal effect, and strong practicality.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] A method for cleaning dust from ceramic encapsulated products includes the following steps:

[0006] Step 1: Attach the UV film to the metal frame to form the film frame;

[0007] Step 2: Use a non-woven cloth soaked in alcohol to wipe the anti-static tabletop clean. After the tabletop dries, scatter the dusty ceramic encapsulated products on the tabletop.

[0008] Step 3: Place the adhesive side of the UV film on the product on the table, and stick the product to the UV film.

[0009] Step 4: Apply a thin film to the other side of the product, so that the film adheres to both the UV film and the product, i.e., the product is positioned between the UV film and the thin film.

[0010] Step 5: Use an anti-static roller to repeatedly roll the product to ensure that the product and the film are fully adhered;

[0011] Step 6: Peel off the film on the other side of the product. The film will carry away the dust on the product, and the product will remain on the UV film.

[0012] Step 7: Place the film frame with the product attached into the UV de-adhesive machine to de-adhesive, so that the UV adhesive on the UV film is cured and its stickiness is reduced;

[0013] Step 8: Use ultrasonic vibration to detach the product from the UV film, resulting in a clean, dust-free product.

[0014] Preferably, in step 1, a UV film is applied to the metal frame using a UV film applicator, and in step 4, the film is a PVC blue film.

[0015] Preferably, in step 5, the antistatic rolling roller is an antistatic silicone rubber rolling roller with a diameter of 30±2mm. The antistatic rolling roller is equipped with a handle. During operation, the operator holds the handle and operates the antistatic rolling roller to roll the product on the film 3-6 times.

[0016] Preferably, in step 5, the antistatic rolling operation is carried out under the action of ion wind, thereby avoiding the generation of static electricity during the rolling motion and thus preventing damage to the product.

[0017] Preferably, in step 7, the UV film is irradiated with UV light in the UV degumming machine, wherein the UV light wavelength is 365±2nm and the irradiation density is 230±5Mw / cm². 2 The irradiation power is 190 Mj / cm 2 The irradiation time is 20-50 seconds.

[0018] Preferably, in step 8, the film-applying frame is vibrated using an ultrasonic vibrator. Specifically, the film-applying frame is placed on the receiving tray of the ultrasonic vibrator, and all the products on the film-applying frame are located within the receiving tray. The head diameter of the ultrasonic vibrator is about 10±2mm, the vibration frequency of the ultrasonic vibrator is 96±5KHz, and the entire ultrasonic vibration process is carried out under the action of ion wind.

[0019] The beneficial effects of this invention are as follows: This invention utilizes a UV laminating machine to attach a UV film to a metal frame to form a laminating frame. One side of the product is then adhered to the laminating frame, and a layer of PVC blue film is applied to the other side of the product. An anti-static roller is used to roll the blue film, ensuring complete adhesion between the entire surface of the product and the film. Specifically, one side of the product is adhered to the UV film, and the other side is adhered to the PVC blue film. The PVC blue film is then peeled off the laminating frame, removing all dust from the adhered surfaces. A UV adhesive remover is then used to reduce the UV adhesive's stickiness, allowing the product to be shaken off the UV film, leaving the dust on the UV film, resulting in a clean product surface. This invention efficiently removes dust electrostatically adsorbed on the surface of ceramic-encapsulated products, preventing product scrapping, reducing costs, and minimizing resource waste. The UV laminating machine and UV adhesive remover used in this invention are standard equipment for chip manufacturers, so no additional purchase is required, and product processing costs are not increased. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: A method for cleaning dust from ceramic encapsulated products, comprising the following steps:

[0022] Step 1: Attach the UV film to the metal frame to form the film frame;

[0023] Step 2: Use a non-woven cloth soaked in alcohol to wipe the anti-static tabletop clean. After the tabletop dries, scatter the dusty ceramic encapsulated products on the tabletop.

[0024] Step 3: Place the adhesive side of the UV film on the product on the table, and stick the product to the UV film.

[0025] Step 4: Apply a thin film to the other side of the product, so that the film is attached to the UV film and the product, i.e., the product is located between the UV film and the film; flip the film frame so that the product is facing up, and then cover the film frame with the film, so that the film is initially adhered to the product and the UV film.

[0026] Step 5: Use an antistatic roller to repeatedly roll the product to ensure it adheres fully to the film; place the antistatic roller on the film and repeatedly roll the product under the film to ensure both sides of the product are fully bonded to the UV film and the film, so that all surfaces of the product are adhered to the UV film or film, making it easier for the UV film or film to remove all dust from the product surface.

[0027] Step 6: Peel off the film on the other side of the product. The film will remove the dust from the product, while the product remains on the UV film. Specifically, the film will remove the dust from the surface to which the product is bonded. Since the adhesion of the UV film to the product is greater than that of the film to the product, after peeling off the film, the film will only remove the dust from the surface of the product, while the product remains on the UV film.

[0028] Step 7: Place the film frame with the product attached into the UV de-adhesive machine to de-adhesive the UV film, so that the UV adhesive on the UV film is cured and its stickiness is reduced; the UV de-adhesive machine is used to reduce the stickiness of the UV adhesive on the UV film, making it easier for the product to be removed from the UV film.

[0029] Step 8: Using ultrasonic vibration of the film-applying frame, the product is detached from the UV film, resulting in a clean, dust-free product. Dust on the surface of the product bonded to the UV film remains on the UV film, while cleaning the product surface restores its usability. In this invention, a UV film-applying machine is used to attach the UV film to a metal frame to form a film-applying frame. One side of the product is then adhered to the film-applying frame, and a thin film, such as a PVC blue film, is covered on the other side of the product. An anti-static roller is used to roll the blue film, ensuring complete adhesion between the entire surface of the product and the film. That is, one side of the product is bonded to the UV film, and the other side is bonded to the PVC blue film. Then, the PVC blue film is peeled off from the film-applying frame. In this way, the PVC blue film removes all the dust from the surface to which the product is bonded. A UV adhesive release machine is then used to reduce the UV adhesive strength, and the product is shaken off the UV film, leaving the dust on the UV film, thus obtaining a clean product. This invention can efficiently remove dust that is electrostatically adsorbed on the surface of ceramic packaged products, avoiding product scrapping, reducing costs, and minimizing resource waste. The UV laminator and UV de-adhesive machine used in this invention are standard equipment for chip manufacturers, so no additional purchase is required, and the product processing cost will not be increased.

[0030] In step 1, a UV film is applied to a metal frame using a UV laminator. In step 4, the film is a PVC blue film. Optionally, the PVC blue film is an SPV-225 blue film. Applying the UV film to a rectangular metal frame facilitates subsequent manual operations. The UV laminator is a commonly used piece of equipment in this field and is essential for chip manufacturers; therefore, no additional equipment purchase is required, resulting in zero marginal cost. Using inexpensive SPV-225 blue film further reduces costs.

[0031] In step 5, the antistatic rolling roller is an antistatic silicone rubber rolling roller with a diameter of 30±2mm. The antistatic rolling roller has a handle; during operation, the operator holds the handle and operates the antistatic rolling roller to roll the product on the film 3-6 times. The rolling roller mainly rolls the area of ​​the film covering the product, ensuring a tight bond between the product surface and the UV film, and between the product surface and the SPV-225 blue film. This ensures the product surface is completely bonded to the film, improving the dust removal effect on the product surface and bonding the SPV-225 blue film and UV film in the area covering the product, increasing the peel strength of the blue film and further enhancing the dust removal effect. Optionally, the antistatic rolling operation is performed under the action of an ionizing airflow, thereby avoiding damage to the product caused by static electricity generated during the rolling motion.

[0032] In step 7, the UV film is irradiated with UV light in the UV degumming machine, wherein the UV light wavelength is 365±2nm and the irradiation density is 230±5Mw / cm². 2 The irradiation power is 190 Mj / cm 2 The irradiation time is 20-50 seconds. The UV degumming machine is set to the desired irradiation time. Once the set time is reached, the UV degumming machine will automatically turn off the UV light. These irradiation conditions allow for control of the UV curing effect, making it easier for products to detach from the UV film.

[0033] In step 8, an ultrasonic vibrator is used to vibrate the film-applying frame. Specifically, the film-applying frame is placed on the receiving tray of the ultrasonic vibrator, ensuring that all the product on the frame is within the tray. The head diameter of the ultrasonic vibrator is approximately 10±2mm, and the vibration frequency is 96±5KHz. The entire ultrasonic vibration process is conducted under the influence of ion wind, thus preventing the accumulation of static charge during ultrasonic vibration. Through the adhesion of the two films to the product, dust on both sides of the product is completely removed, achieving a highly efficient dust removal effect.

[0034] Our company used this cleaning method to remove dust from a large number of contaminated products in inventory, allowing the products to continue to be used, saving the company some economic losses and reducing resource waste. This cleaning method has good dust removal effect, high efficiency, and requires little human resources, making it highly valuable.

[0035] It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the scope of protection of this invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for cleaning dust from ceramic encapsulated products, characterized in that: Includes the following steps: Step 1: Attach the UV film to the metal frame to form the film frame; Step 2: Use a non-woven cloth soaked in alcohol to wipe the anti-static tabletop clean. After the tabletop dries, scatter the dusty ceramic encapsulated products on the tabletop. Step 3: Place the adhesive side of the UV film on the product on the table, and stick the product to the UV film. Step 4: Apply a thin film to the other side of the product, so that the film adheres to both the UV film and the product, i.e., the product is positioned between the UV film and the thin film. Step 5: Use an anti-static roller to repeatedly roll the product to ensure that the product and the film are fully adhered; Step 6: Peel off the film on the other side of the product. The film will carry away the dust on the product, and the product will remain on the UV film. Step 7: Place the film frame with the product attached into the UV de-adhesive machine to de-adhesive, so that the UV adhesive on the UV film is cured and its stickiness is reduced; Step 8: Use ultrasonic vibration to detach the product from the UV film, resulting in a clean, dust-free product.

2. The dust cleaning method for ceramic encapsulation products according to claim 1, characterized in that: In step 1, a UV film is applied to the metal frame using a UV film applicator. In step 4, the film is a PVC blue film.

3. The dust cleaning method for ceramic encapsulation products according to claim 1, characterized in that: In step 5, the antistatic rolling roller is an antistatic silicone rubber rolling roller with a diameter of 30±2mm. The antistatic rolling roller is equipped with a handle. During operation, the operator holds the handle and operates the antistatic rolling roller to roll the product on the film 3-6 times.

4. The dust cleaning method for ceramic encapsulation products according to claim 3, characterized in that: In step 5, the antistatic rolling operation is carried out under the action of ion wind, thereby avoiding the generation of static electricity during the rolling motion and thus preventing damage to the product.

5. The dust cleaning method for ceramic encapsulation products according to claim 1, characterized in that: In step 7, the UV film is irradiated with UV light in the UV degumming machine, wherein the UV light wavelength is 365±2nm and the irradiation density is 230±5Mw / cm². 2 The irradiation power is 190 Mj / cm 2 The irradiation time is 20-50 seconds.

6. The dust cleaning method for ceramic encapsulation products according to claim 1, characterized in that: In step 8, the film-applying frame is vibrated using an ultrasonic vibrator. Specifically, the film-applying frame is placed on the receiving plate of the ultrasonic vibrator, and all the products on the film-applying frame are located within the receiving plate. The head diameter of the ultrasonic vibrator is 10±2mm, the vibration frequency of the ultrasonic vibrator is 96±5KHz, and the entire ultrasonic vibration process is carried out under the action of ion wind.

Citation Information

Patent Citations

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