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Super Purchasing for 3mil Printed Circuit Boards - China New Product Shenzhen printed circuit board manufacturer pcba prototype fr4 bare pcb without copper – Yongmingsheng

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We always continually offer you by far the most conscientious customer service, and the widest variety of designs and styles with finest materials. These attempts include the availability of customized designs with speed and dispatch for 1layer Pcb, Special Rogers Hdi Pcb Board, Fr4 Ultra-Thin Pcb, We sincerely welcome clients from both of those at your home and overseas to occur to barter business enterprise with us.
Super Purchasing for 3mil Printed Circuit Boards - China New Product Shenzhen printed circuit board manufacturer pcba prototype fr4 bare pcb without copper – Yongmingsheng Detail:

Our commission should be to serve our end users and purchasers with finest top quality and competitive portable digital products and solutions for China New Product Shenzhen printed circuit board manufacturer pcba prototype fr4 bare pcb without copper, Our assistance concept is honesty, aggressive, realistic and innovation. With all your guidance, we’re going to develop much far better.
Our commission should be to serve our end users and purchasers with finest top quality and competitive portable digital products and solutions for , Our company considers that selling is not only to gain profit but also popularize the culture of our company to the world. So we are working hard to present you the wholehearted service and willing to present you the most competitive price in the market

The basic meaning of high Tg circuit board

When the temperature of high Tg printed circuit board rises to a certain threshold, the substrate will change from “glass state” to “rubber state”, and the temperature at this time is called the glass transition temperature (Tg) of the board.

In other words, Tg is the highest temperature (℃) at which the substrate remains rigid.

That is to say, the common PCB substrate material in the high temperature, continuous softening, deformation, melting and other phenomena, but also in the performance of the mechanical and electrical characteristics of the sharp decline, which affects the service life of the product (I think we do not want to see their own products appear in this case).

The main characteristics of high Tg PCB

Generally, Tg plates are above 130℃, high Tg is generally greater than 170℃, and medium Tg is about greater than 150℃.

PCB printed boards with Tg≥170℃ are usually referred to as high Tg printed boards.

With the improvement of Tg of substrate, the heat resistance, moisture resistance, chemical resistance and stability of PCB will be improved.The higher the TG value, the better the temperature resistance of the plate, especially in lead-free process, high TG is more widely used.

Therefore, the difference between general fr-4 and high Tg is as follows: under high temperature, especially under heat after hygroscopicity, the mechanical strength, dimensional stability, adhesion, water absorption, thermal decomposition, thermal expansion and other conditions of the materials are different, and high Tg products are obviously better than ordinary PCB substrate materials.

High TG PCB process capability

Layer: 2-14

Maximum processing area: 640mm*1100mm

Copper thickness: 0.5 OZ – 13 OZ

Plate thickness: double layer plate: 0.2mm–6.0mm

Laminate: 0.4mm-8.0mm 6 laminate: 0.8mm-8.0mm

10 laminate: 1.2mm-8.0mm

12 laminate: 1.5mm-8.0mm 14 laminate: 1.5mm-8.0mm

16 laminate: 1.6mm-8.0mm 18 laminate: 2.2mm-8.0mm

20 laminate: 2.4mm-8.0mm

Minimum line width/spacing: 3mil/3mil

Finished product minimum aperture: 0.15mm

Maximum machined thickness to diameter ratio: 12:1

Impedance control: +/-10%

Surface treatment: spray lead tin, spray pure tin, chemical precipitation gold, chemical precipitation tin, chemical precipitation silver, plug gold-plated, anti-oxidation

Commonly used sheet: FR4 Tg130 / Tg170 ℃, Rogers, Arlon, Taconic, Bergquist

Special process: blind hole burial, plate hole, plate edge metallization, half hole, step mounting hole, deep hole control, metal base (core) plate.

Application of high Tg plate in plate copying

High Tg plank in the application of copy plate at the present stage include: high-precision double-sided PCB PCB copy board, carbon oil filling hole PCB circuit board PCB copy board, high Tg PCB copy board, PCB PCB copy board, thick copper plate plane winding professional copy board, mixed media board PCB copy board, special base board copy board and customize various specific requirements printed circuit board, high Tg in every corner of the plate is widely used in industry.

HDI basic production process:

A、Brown multilayer circuit board to form Browning film on the surface of copper foil layer, and laser drilling on the surface of copper foil to form laser blind hole

B、 drill the multi-layer circuit board to form a mechanical drill hole

C、 The multi-layer circuit board is coated with copper to form a copper layer in the laser blind hole mechanical drilling, and then the multi-layer circuit board is electroplated to thicken the copper layer in the hole

D、The above multilayer circuit board is made of outer graphics, and the surface treatment of etched screen print resistance welding on the outer layer of graphics electroplating is carried out to obtain the finished HDI board

 

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Super Purchasing for 3mil Printed Circuit Boards - China New Product Shenzhen printed circuit board manufacturer pcba prototype fr4 bare pcb without copper – Yongmingsheng detail pictures


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With our excellent administration, potent technical capability and strict top quality control technique, we go on to provide our consumers with trusted quality, reasonable price ranges and fantastic providers. We intention at becoming one among your most trusted partners and earning your fulfillment for Super Purchasing for 3mil Printed Circuit Boards - China New Product Shenzhen printed circuit board manufacturer pcba prototype fr4 bare pcb without copper – Yongmingsheng , The product will supply to all over the world, such as: Chile, Dominica, Netherlands, We've got sufficient experience in producing products according to samples or drawings. We warmly welcome customers from home and abroad to visit our company, and to cooperate with us for a splendid future together.
  • The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
    5 Stars By Doris from Roman - 2018.05.22 12:13
    In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
    5 Stars By Meredith from panama - 2018.12.05 13:53
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