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A multi-channel multi-control type vacuum pumping system equipment and vacuum pumping method

A vacuuming system and vacuuming technology, applied in vacuum evaporation plating, coating, gaseous chemical plating and other directions, can solve the problems of uneven thickness of the coating film, uneven distribution of plasma, etc., to improve the thickness uniformity, The effect of improving the uniformity of distribution

Active Publication Date: 2021-09-28
BETONE TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a multi-channel multi-control vacuum pumping system equipment and a vacuum pumping method, which are used to solve the problem of residual gas or plasma in the coating cavity easily caused by the existing vacuum pumping methods. Uneven distribution, leading to the problem of uneven film thickness deposited by vapor deposition

Method used

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  • A multi-channel multi-control type vacuum pumping system equipment and vacuum pumping method
  • A multi-channel multi-control type vacuum pumping system equipment and vacuum pumping method
  • A multi-channel multi-control type vacuum pumping system equipment and vacuum pumping method

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Embodiment 1

[0044] In this embodiment, a multi-channel and multi-control vacuum pumping system equipment is provided, please refer to figure 1 and figure 2 , respectively showing the top view and bottom view of the multi-channel multi-control vacuum system equipment, including a body 1, a plurality of chambers 2, a main pipeline 3, a vacuum device 4, a plurality of sub-pipes 5, and a plurality of control valves 6 , a plurality of universal suction heads 7 and a plurality of driving mechanisms 8, wherein a plurality of the chambers 2 are arranged in the body 1 at intervals; the main pipeline 3 includes a main joint 301 and a plurality of taps 302 The vacuum device 4 is connected to the main joint 301; a plurality of the sub-pipes 5 are respectively connected to different sub-pipes 302 and different chambers 2, and the sub-pipes 5 include a first joint 501 and at least one second joint 502, the first joint 501 is connected to the tap 302, the second joint 502 is connected to the bottom of...

Embodiment 2

[0062] This embodiment provides a vacuum pumping method, which adjusts the pumping speed and the pumping direction of the universal pumping head in the chamber during the vacuum pumping process. It should be pointed out that this method can be implemented by using the multi-channel multi-control vacuum system equipment described in Embodiment 1 or other suitable equipment.

[0063] As an example, in order to achieve uniformity control more accurately, a plurality of the universal suction heads are provided in the chamber, and the suction speed and the suction direction of the multiple universal suction heads are respectively adjusted to achieve the desired The uniformity of gas or plasma distribution in each area of ​​the chamber.

[0064] As an example, the air pressure in different regions in the chamber can be detected during the vacuuming process, and the suction speed and direction of the universal suction head can be adjusted according to the unevenness of the air pressu...

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Abstract

The invention provides a multi-channel and multi-control vacuum pumping system equipment and a vacuum pumping method. Air extraction head and a plurality of driving mechanisms, wherein the plurality of driving mechanisms are respectively connected to different universal air extraction heads to change the air extraction direction of the universal air extraction head, at least one universal air extraction head can be arranged in a chamber, And each universal suction head can be controlled separately. The vacuuming method of the present invention can adjust the pumping speed and the pumping direction of the universal pumping head in the chamber according to the unevenness of the gas in the chamber or the unevenness of the deposited film during the vacuuming process, so as to improve the residual gas in the chamber. The uniformity of distribution or the uniformity of plasma distribution in the chamber during the reaction of the coating process will ultimately improve the uniformity of the thickness of the coated film layer. The height and / or direction of the universal suction head can be manually adjusted in advance, and its pumping speed and direction can also be adjusted in real time during the vacuuming process.

Description

technical field [0001] The invention belongs to the field of semiconductor high-end manufacturing equipment, and in particular relates to a multi-channel multi-control vacuum pumping system device and a vacuum pumping method. Background technique [0002] Today's thin film manufacturing process must use vacuum equipment whether it uses CVD (Chemical Vapor Deposition) or PVD (Physical Vapor Deposition). In the general semiconductor or thin film process, it must be carried out in a relatively high vacuum environment, and it is usually necessary to make the vacuum in the deposition chamber reach a certain level (about 10 -5 torr), the subsequent thin film deposition process can continue. During the coating process, it is necessary to continuously vacuumize, coat, vacuumize, and coat again. The purpose is to extract the remaining exhaust gas or plasma from the previous coating reaction to prevent the impact on the next coating. If If the exhaust gas or residual plasma is not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C16/44C23C16/455C23C14/56
CPCC23C14/56C23C16/4412C23C16/455
Inventor 封拥军周东平崔世甲宋维聪
Owner BETONE TECH SHANGHAI
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