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CRT TV PCB

CRT TV PCB

CRT TV PCB 1.product describe Specification application:CRT TV layer:8 special technology:impedance control surface treatment:ENIG material:high TG FR4 line width/ space:3.5/4mil board thickness:1.0mm min hole:0.2mm UNIWELL circuits cO., lTD. is specialized in Printed Circuit Board and PCB...

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CRT TV PCB
1.Product describe

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Specification
Layer: 4  
Board Thickness: 1.58 mm
Surface treatment:immersion gold.
Material: FR4 .
Min line width/line distance:15/20mil
Min hole:0.4mm

UNIWELL circuits cO., lTD. is specialized in Printed Circuit Board and PCB Assembly including components sourcing , functional test and complete assembly for clients all over the world . 

All of our base materails and process can meet ROHS and UL international certifications .We stand behind our reputation and have a 100% quality and customer's service promise . 

If there is any defects for our products , our team will go back to produce a new batch of products that is in conformity with every specification you have request for .

Uniwell circuits is professional PCB manufacture enterprise, we offers all kind of PCBs , PCBA , FPC, aluminum PCB , FR4 PCB , Rogers PCB , Rigid PCB ,LED PCB , Rigid-Flex PCB , etc. 

We have 10+ years with OEM printed circuit boards(PCBs) and PCBA assembly service experience , Uniwell circuits has won numerous customers' trust and support.
PCBA board is an OEM double-sided PCB with components as your customized.

2.Product certification
We rely heavily upon customer and manufacturing feedback to produce a world-class production , our staff enjoys supporting customers to find a solution to reduce cost of products without sacrifice quality.
We are a small company  ,small enough to listen to your heart with enough patience;
We are also a big company , big enough to take the responsibility of building a better life . 

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3.Lead time & logistics
1)Lead time
We offer quick turn service, single &double within 24 hours, 4-8 layer within 48 hours.

Layers

Quick-turn

Sample order

single

24 hours

3working days

double

24 hours

4working days

4-6layer

48hours

5-6working days

8-12layer

120hours

7-9working days

FR-4 based, Exclude material lead time

2)Logistics
And we can offer all kinds logistics, you can just choose the way you like.

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4.FPC manufacturer introduces the requirements and precautions of FPC surface mount.
Supply stable performance of FPC producer is introduced in the flexible printed circuit board (FPC) on the technological requirements of SMD in the miniaturization of electronic products development, quite a number of consumer products, SMT, because the assembly space, the relationship between the SMD on FPC soft plate is pasted on the complete machine assembly, therefore, FPC on SMD surface-mount has become one of SMT technology development trend.Specifically, there are several aspects to the process requirements and attention points of FPC surface mount.

1)Pay attention to the details of the routine installation,
FPC factories introduce FPC surface-mount introduce FPC soft board the characteristics of the conventional SMD SMT is the less demanding in terms of accuracy, and software is relatively small, the number of varieties of components is given priority to with resistance capacitance or an individual element.FPC manufacturers emphasize that the printing of solder paste should be noted that the FPC is positioned on the printing plate and is usually printed with small semi-automatic printing presses.SMT, specific methods usually can use manual pasted on the position precision of some individual components also can use manual placement machine SMT, and generally adopts the reflow soldering process, special circumstances can also be used spot welding. 

2)Note that the high - precision mounting should adopt advanced equipment and adjust the corresponding parameters.
The FPC manufacturer introduces the paste printing machine, and the printing machine is best equipped with an optical positioning system so that the welding quality can be guaranteed. FPC manufacturer also found the FPC fixed on the plate, but a lot of time will produce some small gap, so pay attention to the equipment parameters set for SMT precision printing effects, etc, will produce more significant impact, so the process must be good control, strict requirements. 

3)Pay attention to the accuracy of the paste printing details.
Service good reputation FPC producer introduced on because cells when printing plate loading FPC, FPC soft board with other materials can make the height and positioning plate plane, so must choose when printing the elastic scraper.The FPC manufacturer also reminds the paste composition to have a great impact on the   printing effect, and it is necessary to choose the appropriate solder paste. In addition, the printing template with the corresponding method should be specially treated. 

Above is the FPC FPC manufacturers to introduce the SMT process included several aspects of the requirements and matters needing attention, in addition, in order to be better consistency can be achieved when mass production, so the requirement with good quality and more advanced equipment.FPC manufacturer also remind FPC soft plate fixation should be printed patch to the reflow soldering on the plate with all the way, so to adjust the corresponding thermal expansion coefficient is small degree to be able to get a better welding effect.

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