Resistor built-in printing circuit board and manufacturing process thereof

A technology of printed circuit boards and embedded resistors, which is applied in the direction of printed circuits, printed circuit manufacturing, and printed electrical components. It can solve the problems of poor signal conversion effect and large volume of components, and achieve reduced size and reliable signals. , the effect of reducing signal crosstalk

Inactive Publication Date: 2011-01-19
JIANGSU PROVISION ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Resistor plate products are mostly separated component combinations. There are many components in the product, wires are involved, the volume is large, and the combined signal conversion effect of components is poor.

Method used

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  • Resistor built-in printing circuit board and manufacturing process thereof
  • Resistor built-in printing circuit board and manufacturing process thereof
  • Resistor built-in printing circuit board and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment

[0019] Embodiment: A printed circuit board with embedded resistors, comprising an insulating substrate 1, a metal circuit layer formed on the surface of the insulating substrate 1, and an interlayer via hole 2 corresponding to the hole wall of the conductive metal circuit layer covering the metal layer, The part where the metal circuit layer is exposed on the surface of the insulating substrate is covered with an insulating ink layer, and at least a pair of electrodes 3 are formed in the metal circuit layer, and the insulating substrate between each pair of electrodes 3 is covered with a resistance layer 4, and each resistance layer 4 extends The electrode 3 covering its two ends is on one end close to the resistance layer.

[0020] The resistance layer 4 is a carbon oil film layer, and its resistance value is 1K-100K ohms.

[0021] A manufacturing process of a printed circuit board with embedded resistors, comprising the following steps in sequence:

[0022] A. Cutting: Cutt...

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PUM

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Abstract

The invention discloses a resistor built-in printing circuit board and a manufacturing process thereof. A sprayed resistive layer which replaces a resistor on the surface of the circuit board is formed by the processes of shearing, circuit spraying, drilling, copper deposition perforation, electroplating and green oil spraying in turn; and the structure of a finished product comprises an insulation substrate, a metal circuit layer and an interlayer through hole, wherein the surface of the part, exposed from the metal circuit layer, of the insulation substrate is covered with an insulation printing ink layer; at least one pair of electrodes are formed in the metal circuit layer; the insulation substrate between each pair of electrodes is covered with the resistive layer; and each resistive layer extends to cover one of the two ends, which is close to the resistive layer, of the electrode. The product is wide in use; and a built-in resistor shortens the path of a signal to each element, reduces stray inductance, the crosstalk of the signal, the size of the circuit board, the weight of the product and welding spots on the circuit board, so that the product has the characteristics of precision, smallness, light weight and reliable signal and is suitable for requirement trends of the electronic products.

Description

technical field [0001] The invention relates to the field of printed circuit boards, in particular to a printed circuit board with embedded resistors and a manufacturing process thereof. Background technique [0002] Electronic products tend to be miniaturized and multi-functional, and electronic products in the field of resistance must not only meet this requirement, but more importantly, must meet the combined signal transmission effect of components and good functions. [0003] Resistor plate products are mostly separated component combinations. There are many components in the product, wires are involved, the volume is large, and the combined signal conversion effect of components is poor. Contents of the invention [0004] In order to overcome the above defects, the present invention provides a printed circuit board with embedded resistors and its manufacturing process, which can realize embedded resistors with small volume and high integration. [0005] The technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/16H05K3/00
Inventor 马洪伟
Owner JIANGSU PROVISION ELECTRONICS CO LTD
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