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A method for controlling expansion and contraction of printed circuit board core board

A control method and a printed circuit technology, which are applied in the manufacturing of printed circuits, printed circuits, and multi-layer circuits, etc., can solve the problems of different baking degrees and uneven baking of core boards, and achieve uniform heating and uniform temperature. Good performance, reducing the effect of shrinkage

Active Publication Date: 2021-06-08
GUANGDONG KINGSHINE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional way of stacking multiple core boards sequentially in the baking chamber for baking is prone to the phenomenon that the baking degree of each core board is different during the baking process, and the baking is uneven.

Method used

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  • A method for controlling expansion and contraction of printed circuit board core board
  • A method for controlling expansion and contraction of printed circuit board core board

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Embodiment Construction

[0019] The expansion and shrinkage control method of the printed circuit board core board of the present invention will be further described in detail in combination with specific embodiments and accompanying drawings.

[0020] refer to figure 1 , figure 2 , a non-limiting embodiment of the present invention, a method for controlling the expansion and contraction of the core board of a printed circuit board, the control method is to control the expansion and contraction of the core board 30 by using layered baking plates in the baking process method. The expansion and contraction control method of the core board of the printed circuit board of the present invention is carried out by adopting the mode of layered baking boards, and the layered baking boards can be used to place the core boards 30 in layers, and each core board 30 is heated evenly up and down, so that the core boards The temperature uniformity of the 30 baking plate is good, the stability of the baking plate i...

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Abstract

The invention relates to a method for controlling expansion and contraction of a core board of a printed circuit board. The control method is a method for controlling the expansion and contraction of the core board by adopting layered baking plates in a baking process. The baking process is to place the core boards in a baking device sequentially for baking. The baking device includes a baking chamber, and the baking chamber is provided with multiple layers of baking racks arranged at intervals. The baking The rack includes baking trays mounted within the baking chamber and a support structure mounted on the support structure for placing and baking the core boards. The expansion and contraction control method of the printed circuit board core board of the present invention has the advantages of stable baking board and uniform baking board.

Description

technical field [0001] The invention relates to the technical field of printed circuit boards, in particular to a method for controlling expansion and contraction of a core board of a printed circuit board. Background technique [0002] In printed circuit boards, since the core board is not allowed to be tangent to the concentric circles after lamination, the core board is baked before lamination to make the water in the board surface lose, and then the resin on the board surface solidified. Baking refers to heating and baking the core board in the baking room. In the traditional baking room, a baking rack is generally set up, and multiple core boards are stacked sequentially on the baking rack. In this traditional way of stacking multiple core boards sequentially in the baking chamber for baking, it is easy to have different baking degrees of each core board during the baking process, and the baking is uneven. Contents of the invention [0003] The invention provides a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/22H05K3/46
CPCH05K3/227H05K3/4611
Inventor 王欣周刚曾祥福
Owner GUANGDONG KINGSHINE ELECTRONICS TECH CO LTD
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