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PCB材料

PCB材料

PCB材料

PCB材料

A special TPH-1/2 microwave composite dielectric copper-clad substrate

TPH-1/2 is made of a new type of inorganic and organic materials,with special  process and compounding.

The advantage of design for microwave circuit using TPH-1/2 here:

(1)The substrate is black. The dielectric constant is 2.65,with consistent performance over broad temperature and frequency ranges. The operating temperature is  -100℃~+150℃;

(2)The peel strength between the copper and the substrate is more reliable than the vacuum film coating of ceramic substrate. This substrate is created to offer customers easy for circuit processing,higher pass-rate of production,and the manufacturing cost is much lower than the ceramic substrate. 

(3)Dissipation factor tgδ≤1×10-3,and the loss has a slight variation with the rise of the frequency.

(4)It is easy for mechanical manufacturing,including drill、punch、grind、cut、etching,etc.. For these,the ceramic substrate cannot be compared.

(5) Due to the specific gravity less,the remarkable characteristics of the module are weight lighter manufacturing by this substrate,which but other materials cant compare.

(6)Copper thickness is:0.035μm

Technical Specifications:

Appearance

Smooth   and neat on both sides: no stain,scratch and dent.


Dimension   and

tolerance

(mm)

Dimensions    and  Tolerance


160×160±2mm      200×200±2mm


Thickness    and  Tolerance


δ(mm):2.5±0.075,3.0±0.1,4.0±0.1,5.0±0.2,6.0±0.12,7.0±0.15,8.0±0.15,9.0±0.2,10.0±0.2,12.0±0.2


For   special dimensions,customized lamination is available.


Mechanical   Strength

Peel   strength

In   normal state:≥6N/cm;In the environment of   alternating  humidity and temperature:≥4 N/cm .


Chemical   Property

According   to the properties of laminate,the chemical etching   method for PCB can be used. The dielectric properties of materials are not   changed.


Electrical   property

Name

Test   condition

Unit

Value


Density

Normal   state

g/cm3

1.05


Moisture

Absorption

Dip   in distilled water of 20±2℃ for 24 hours

%

≤0.02


Operating   Temperature

High-low   temperature chamber

-100~+150(Processing temperature should not   exceed 200℃)


Thermal   Conductivity

-55~288℃

W   /m /k

0.3


CTE

0~100℃

ppm/℃

50(x,y,z)


Shrinkage   Factor

2   hours in boiling water

%

0.0004


Surface   Resistivity


M.Ω

≥1×106



Volume   Resistivity

Normal   state

MΩ.cm

≥1×109


Constant   humidity and temperature

≥1×106


Pin   Resistance

500V   DC

Normal   state

≥1×106


Constant   humidity and temperature

≥1×101


Dielectric   Breakdown


kv

≥20


Dielectric   Constant

10GHZ

εr

2.65(±2%)


Dissipation   Factor

10GHZ

tgδ

≤1×10-3



printed circuit board(PCB) with radio frequency(RF PCB) are an increasingly used technique within the PCB industry.

--RF pcb with a high frequency with works above 100 MHz.

--Microwave Circuit with works above 2 GHz radio frequency.

RF-pcb’s are used in different applications such as remote controls(wireless controls)security,smartphones,sensors etc.

New technologies make more and more use of these RF applications.

This asks for a manufacturing according to high quality standards and choosing the right RF materials depending on the application.

It is important that one knows the properties of the various materials.Choosing the right material is perhaps the most critical decision in the production process of the RF PCB.


ipcb advantage

1. Quick respond,24 hours online service
2. No MOQ requirement

3. Diverse capabilities

4. Fast turnarounds available


If you need microwave radio frequency PCB, click here Microwave Circuit.