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XRX-10272
DGXRX
Process flow for single-sided PCBs
1. Traditional process flow (based on etching technology) 3
The traditional manufacturing of single-sided PCBs mainly relies on the etching process of copper-clad laminates, which includes:
Pressing: Combining foil with insulating substrate;
Coating photoresist: Covering with photoresist material;
Exposure and development: Curing the photoresist material through exposure and removing the uncured parts;
Etching: Removing the exposed copper layer using an acidic solution such as ferric chloride;
De-co: Removing the protective layer with sodium hydroxide;
Soldermask printing: Protecting non-soldering areas.
Disadvantages: Invol acid/base solutions, causing high pollution, low efficiency, and high cost.
2. Modern improved process flow (die-cutting hot pressing technology) 13
To optimize environmental friendliness and efficiency, the new process employs die-cutting and pressing technology:
Die-cutting insulation layer for holes: Die-cutting holes on-temperature resistant PET/PI film;
Die-cutting copper foil circuit: Cutting circuit patterns on copper foil tape through rotary or flat plate dies;
pressing: Pressing the die-cut insulation layer with copper foil tape, making the circuit parts exposed through the holes;
Multi-layer lamination (optional): Overl multiple circuit layers, drilling holes, and injecting solder paste to conduct interlayer connections;
Base pressing: Pressing with aluminum substrate or glass fiber board through an insulating layer.
Core advantages: No need for etching and development, reducing pollution and improving efficiency.
II. Advantages of single-sided PCBs
Environmentalliness
The modern process avoids the use of acidic etching solutions, reducing wastewater pollution and conforming to the trend of green manufacturing13.
Low cost and efficiency
The die-cutting technology simplifies the process, reduces material waste, and is suitable for large-scale production16.
Simple and reliable structure
Single-layer reduces line crossings, lowers the risk of short circuits, and facilitates maintenance24.
Thin and lightweight design
Only single-sided wiring, thinner thickness, suitable for devices (such as mobile phones, tablets)48.
High adaptability
Supports high-temperature and vibration-resistant designs, suitable for harsh environments like automotive electronics7.
III. Application fields
Consumer electronics
Mobile phones, tablets: Utilizing its thin and lightweight characteristics to save space4;
Small household appliances ( dryers, electric kettles): Meeting simple circuit requirements and reducing costs48.
Automotive electronics
Engine control, airbag system: High-temperature and-resistant design ensures stability27.
Industrial control and instrumentation
Multimeter, thermometer: Achieving signal acquisition and processing, balancing precision and reliability7.
Medical equipment
Glucose meter, blood pressure monitor: Simple circuit structure reduces failure rate and meets medical safety standards48.
Communication IoT
Wireless remote control, smart home devices: Supporting high-frequency signal transmission and small-sized design67.
Emerging fields
Wable devices: Flexible substrate for bending design10;
Electronic artworks: Using circuit patterns to create artistic
Process flow for single-sided PCBs
1. Traditional process flow (based on etching technology) 3
The traditional manufacturing of single-sided PCBs mainly relies on the etching process of copper-clad laminates, which includes:
Pressing: Combining foil with insulating substrate;
Coating photoresist: Covering with photoresist material;
Exposure and development: Curing the photoresist material through exposure and removing the uncured parts;
Etching: Removing the exposed copper layer using an acidic solution such as ferric chloride;
De-co: Removing the protective layer with sodium hydroxide;
Soldermask printing: Protecting non-soldering areas.
Disadvantages: Invol acid/base solutions, causing high pollution, low efficiency, and high cost.
2. Modern improved process flow (die-cutting hot pressing technology) 13
To optimize environmental friendliness and efficiency, the new process employs die-cutting and pressing technology:
Die-cutting insulation layer for holes: Die-cutting holes on-temperature resistant PET/PI film;
Die-cutting copper foil circuit: Cutting circuit patterns on copper foil tape through rotary or flat plate dies;
pressing: Pressing the die-cut insulation layer with copper foil tape, making the circuit parts exposed through the holes;
Multi-layer lamination (optional): Overl multiple circuit layers, drilling holes, and injecting solder paste to conduct interlayer connections;
Base pressing: Pressing with aluminum substrate or glass fiber board through an insulating layer.
Core advantages: No need for etching and development, reducing pollution and improving efficiency.
II. Advantages of single-sided PCBs
Environmentalliness
The modern process avoids the use of acidic etching solutions, reducing wastewater pollution and conforming to the trend of green manufacturing13.
Low cost and efficiency
The die-cutting technology simplifies the process, reduces material waste, and is suitable for large-scale production16.
Simple and reliable structure
Single-layer reduces line crossings, lowers the risk of short circuits, and facilitates maintenance24.
Thin and lightweight design
Only single-sided wiring, thinner thickness, suitable for devices (such as mobile phones, tablets)48.
High adaptability
Supports high-temperature and vibration-resistant designs, suitable for harsh environments like automotive electronics7.
III. Application fields
Consumer electronics
Mobile phones, tablets: Utilizing its thin and lightweight characteristics to save space4;
Small household appliances ( dryers, electric kettles): Meeting simple circuit requirements and reducing costs48.
Automotive electronics
Engine control, airbag system: High-temperature and-resistant design ensures stability27.
Industrial control and instrumentation
Multimeter, thermometer: Achieving signal acquisition and processing, balancing precision and reliability7.
Medical equipment
Glucose meter, blood pressure monitor: Simple circuit structure reduces failure rate and meets medical safety standards48.
Communication IoT
Wireless remote control, smart home devices: Supporting high-frequency signal transmission and small-sized design67.
Emerging fields
Wable devices: Flexible substrate for bending design10;
Electronic artworks: Using circuit patterns to create artistic