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PTH (Plated Through Hole) production process of thin plate and tool of PTH production process

A production process and thin plate technology, which is applied in the PTH production process of thin plate and its tooling field, can solve the problem of low flatness of the plate surface, achieve the effect of reducing wrinkle defects and improving the problem of "hanging basket printing"

Active Publication Date: 2013-12-18
江苏协和电子股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to propose a process and its tooling for PTH operation using a circular frame sheet, which solves the problem of low board surface flatness and "hanging basket print"

Method used

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  • PTH (Plated Through Hole) production process of thin plate and tool of PTH production process
  • PTH (Plated Through Hole) production process of thin plate and tool of PTH production process
  • PTH (Plated Through Hole) production process of thin plate and tool of PTH production process

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Embodiment Construction

[0023] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0024] Such as Figure 1 to Figure 5 As shown, a tooling for the PTH production process of a thin plate includes a hanging basket 1 and a frame piece 2, the hanging basket 1 has a card slot 3, and a thin plate 4 is fixed and compressed inside the frame piece 2, and the frame piece 2 Insert it vertically into the card slot 3 of the hanging basket.

[0025] Such as Figure 4 As shown, the hanging basket 1 is a hexahedral square frame structure made of stainless steel, and at least two sides of the hanging basket 1 are provided with slots 3 for fixing the frame pieces; the slots 3 are sawtooth-shaped, and the teeth The spaci...

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Abstract

The invention relates to a PTH (Plated Through Hole) production process of a thin plate and a tool of the PTH production process. The production process comprises the following steps of: (1) flatly placing the thin plate in a frame sheet and locking; (2) inserting the frame sheet to a hanging basket for mounting and hanging; and (3) immersing the hanging basket into a bath solution of a production line in collocation with simultaneous operations of sway of the hanging basket and air blowing of the bath solution. The tool comprises the hanging basket and the frame sheet, wherein the hanging basket is provided with a clamping groove, the thin plate is fixedly compacted in the frame sheet, and the frame sheet is vertically inserted into the clamping groove of the hanging basket. Due to adoption of the PTH production process and the tool thereof, not only the concept that the PTH process cannot be used for manufacturing the thin plate is changed and cockles and defects of the product produced by using the PTH process can be effectively reduced, but also the problem of hanging basket marks which are inevitable in the traditional PTH process can be completely improved.

Description

technical field [0001] The invention relates to the production of a printed circuit board, in particular to a thin plate PTH production process and tooling. Background technique [0002] PTH (Plated Through Hole) means plated through hole, which is used to plate the original non-metallic hole wall with a thin layer of copper (that is, metallization), so as to facilitate the smooth plating of subsequent electroplating copper, so that the upper and lower copper layers Or achieve the purpose of connecting with the inner layer copper smoothly. This process is completed through the chemical reaction of the chemical solution, so the product is carried out in the bath with shaking and air blowing during the whole operation process. [0003] When the traditional PTH process is in operation, it uses a stainless steel hanging cage to place the product, and then performs soaking and turnover operations in each medicine tank on the PTH production line; in order to ensure the quality of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/42
Inventor 张南国
Owner 江苏协和电子股份有限公司
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