Method for manufacturing PCB (Printed Circuit Board) by utilizing thermistor material
A thermistor and PCB board technology, which is applied in the field of PCB manufacturing, can solve the problems of increasing the difficulty of engineering wiring design and occupying space, and achieve the effects of convenient wiring design, saving space, and easy installation and use
Inactive Publication Date: 2022-08-05
ZHEJIANG WANZHENG ELECTRONICS SCI & TECH
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[0003] For example, a Chinese patent for a resistive voltage-dividing PCB board and its chip, the patent number is CN201420614326.9, the resistive voltage-dividing PCB board includes: M rows of N resistor groups arranged in each row and connected in a serpentine shape, each resistor The type of resistors in the group is the same as the corresponding number of resistors of this type, and the above M*N resistor groups are divided into M rows and fixed on the PCB board, but the resistance components are welded on the PCB board, occupying the board A large amount of space is used inside, which increases the difficulty of engineering wiring design
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[0024] The specific embodiments of the present invention will be described in further detail below. It should be understood that the descriptions of the embodiments of the present invention herein are not intended to limit the protection scope of the present invention.
[0025] like figure 1 As shown, it is a schematic flowchart of a method for manufacturing a PCB board by using a thermistor material provided by the present invention.
[0026] The method for making a PCB board using the thermistor material comprises the following steps:
[0027] Step S100: Provide an inner layer board made of a thermistor material, the inner layer board includes a thermistor base layer, two copper layers respectively disposed on both sides of the thermistor base layer, two copper layers respectively disposed on the thermistor base layer. A thin nickel protective layer on the side of the copper layer facing away from the thermistor base layer;
[0028] Step S110: placing the inner layer boar...
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Abstract
A method for manufacturing a PCB (printed circuit board) by using a thermistor material comprises the following steps: providing an inner layer board made of the thermistor material, placing the inner layer board in mixed acid for nickel removal treatment, sequentially carrying out etching, drilling, inner-layer circuit and inner-layer etching on the copper layer of the resistance plate; bonding a plurality of inner-layer plates into a whole to serve as an outer-layer plate; and drilling holes in the outer-layer plate, and placing the drilled outer-layer plate in a plasma cleaning machine for degumming and activating. And the outer-layer plate is sequentially subjected to chemical copper deposition, pulse electroplating, outer-layer circuit and acid etching, the surface of the outer-layer plate is coated with a protective film, and the outer side of the outer-layer plate coated with the protective film is plated with nickel and tin. According to the invention, the PCB is made of the thermistor material, and the integrated semiconductor replaces the current complicated resistor component, so that the space is saved, and the wiring design is facilitated.
Description
technical field [0001] The invention belongs to the technical field of PCB manufacturing, in particular to a method for manufacturing a PCB board by using a thermistor material. Background technique [0002] A thermistor is a sensor resistor whose resistance value changes with temperature. According to the different temperature coefficients, it is divided into positive temperature coefficient thermistors and negative temperature coefficient thermistors. A positive temperature coefficient thermistor (PTC) increases with increasing temperature, and a negative temperature coefficient thermistor (NTC) decreases with increasing temperature. Thermal materials are generally divided into semiconductors, metals and alloys. During the production process of the PCB board, the resistor components are mounted on the PCB board. [0003] For example, a Chinese patent is a resistor divider PCB board and its chip, the patent number is CN201420614326.9, the resistor divider PCB board inclu...
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IPC IPC(8): H05K3/46H05K1/16G01K7/22
CPCH05K3/4602H05K1/167G01K7/22
Inventor 王德瑜宋秀全吉祥书胡勇
Owner ZHEJIANG WANZHENG ELECTRONICS SCI & TECH