How to introduce gold finger PCB just few steps to your customers?

How to introduce gold finger PCB just few steps to your customers?
Jim will discuss gold finger PCB manufacturing in three parts below:

–You shoul know Gold Finger definition
–The use area of Gold Finger
–Introduce of Gold finger PCB

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You shoul know Gold Finger definition

Gold Finger is gold-plated terminal of a card-edge connector, usually, fingers are done by flash gold (hard gold) and the gold thickness is requested to be from 3u“ to 50u“ because fingers are mainly used for pluging for many times.
When PCBs will be repeatedly installed and removed electroplated gold is used for edge-connector contacts or as they are more commonly known: Gold fingers.

The use area of Gold Finger

Gold contact surfaces are often used on circuit boards with membrane switches which are a technology of choice for industrial, commercial and consumer products.

Introduce of Gold finger PCB

However, the gold fingers (gold-plated contact pins) found on PCBs are quite unlike Auric’s stubby, fat digits.
To begin with, the plating thickness of a PCB gold finger is typically a mere 300 micro-inch. At this thickness the hard gold is expected to survive 1,000 cycles before wear through.

Product type: 4 layers PCB
Board thickness: 1.60±0.15mm
Copper thickness: 2OZ out layer 1OZ innner Layer
Minimum hole size: 0.50mm
Surface finish: ENIG+gold finger
Minimum line width/space: 0.125/0.125mm
Gold thickness on gold finger: 20u“

Product type: 6 layers gold finger PCB
Board thickness: 1.60±0.15mm
Copper thickness: 2OZ out layer 1OZ innner Layer
Minimum hole size: 0.50mm
Surface finish: ENIG+gold finger
Minimum line width/space: 0.15/0.13mm
Gold thickness on gold finger: 30u“

If you want place our gold finger PCB,please mail to info@htdcircuits.com

Quote Your Self Designed PCB with Full Specifications for Dynamic Productivity

PCB quote specialise for proto and small volume. It is easier, most user friendly of any programs till date in technology. Besides being a miniature pack it comprises the pillar of the electronic applications.

Today we are in a world where we cannot think without a PCB. And with the growing demands it is becoming difficult to fulfil the customers need with high supplies. And just keeping this in mind, the PCB online quote industry has merged into an online facility where you can order your own circuit easily. You will be happy to find that your orders will be placed very tactfully and they will be delivered to you within a day or less. In this ultra competitive pricing, online shopping is the best option to save your pocket and get the desired result.

Low cost and high quality is what you can expect from a leading printed circuit board. To get a quote for printed circuit board fabrication, all fields are required. The dynamic quoting program allows you with the option of designing your own printed circuit board as per your need and requirement, and definitely not the one that we build. There is complete transparency between the suppliers and the customers where your needs are taken care of and finally quenches your demands.

You can order them online with your own design module describing your needs. You must be thinking that it would be a costly affair online, but the truth is that ordering and quoting through instant PCB quote minimises the expenditure and brings smile in your lips. All major credit cards are accepted, with 24/7 customer service provider and on time delivery attracts the customers.

Based on so many specifications, designs, and requirements, there has been an increased mass production of PCB, in order to meet your demands. Production of any printed circuit boards mainly stands on two principles; i.e. high temperature durability and high conductivity. Printed circuit boards are manufactured in large scale worldwide. This is spreading so fast that you can hardly ignore its importance. This avoids unnecessary labour costs and costs less to your pocket too.

These are mostly used in led industries where there is high dissipation of heat to increase the longevity and durability of the electronic applications. So what are you waiting for? Go and grab one for yourself or quote your own printed circuit board which is handy, portable and pocket friendly if ordered online.

PCB Manufacturers suggest specifying Impedance

PCB Manufacturers suggest specifying Impedance
This paper will from different way to discuss specifying Impedance.
1, The reasson Why should Specifying Impedance in your PCB Design?
2, How to Specifying Impedance in your PCB Design

Why should Specifying Impedance in your PCB Design?

If you are designing a product where the impedance is critical then you will need to clearly specify the impedance value required on the specific traces.
These may be designs with tight tolerances or ones that cannot be designed using common Microstrip configurations.

How to Specifying Impedance in your PCB Design?
It is important to note that when you define a trace as having an impedance control requirement, it is the impedance of the trace that is critical and not the size of the trace.
By defining a trace as impedance controlled you are giving permission to the PCB manufacturer to vary parameters such as the size of the trace or thickness of the laminate in order to achieve the desired impedance.
The manufacturer will probably go with the recommended parameters from the field solver first, then test the PCBs impedance and if necessary make appropriate changes and produce the PCB again until the required result is achieved.

HTD PCB manufacturer expert: Consider the component factor during impedance design

HTD PCB manufacturer expert: Consider the component factor during impedance design

Match component impedance:
This information should be found in the component data sheet.

Once you have this information you now know the required impedance value of the track you need to connect these two components.

Track characteristics: track length, width and thickness, its proximity to other tracks, ground planes, laminate thickness and dielectric constant (Er) are all important factors to consider.

For tracks located on outer layers the thickness of the solder mask must also be taken into consideration.

Use a Microstrip: This is a trace on one layer separated from a plane on another layer by a material (such as the substrate).

Remember the antenna example?

A substrate acts like the cable insulator and the plane acts like a shield.

Microstrip configurations are popular because you can use impedance calculators or field solver software to give you recommended trace dimensions based on the impedance you require and the parameters\configuration you are using.

Different configurations and combinations of these Microstrips can be used:

Surface:
Trace on one side and a copper plane on the other.

Coupled:
Where you have more than one trace on one side and a copper   plane on the other.

Embedded:
Where the trace(s) are sandwiched between the substrate with a copper plane on one side.

Stripline:
Where the trace(s) are sandwiched between the substrate with a copper plane on both sides.

Using these methods, where you calculate all the parameters in order to control the impedance is often referred to as “Controlled Dielectric”.

This is sufficient for a lot of designs, as long as you specify the parameters to your manufacturer and they stick to the specifications.


You can calculate your impedance for free here.

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Recommend you review presentation in full screen.
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Resource: http://www.htdcircuits.com/review-htd-group-presentation-to-learn-why-big-brand-trust-us.html

From a HTD PCB manufacturer to discuss impedance control

From a HTD PCB manufacturer to discuss impedance control.
If you want to learn more impedance control solution for big brand customers, please contact to us.


Let’s take the cable connecting your TV to your antenna\satellite dish and look at it through the lens of impedance.


The purpose of this cable is to transfer the signal from one device (in this case your satellite dish) to another (in this case your TV).

To obtain the best possible signal, the impedance of the satellite dish must match that of the cable and the impedance of the cable must match that of the TV.

If the impedances don’t match, then only a portion of the signal gets transferred down the line to the TV.

The rest of the signal gets sent back along the line to the antenna where it gets resent and another portion of it may now get to the TV but obviously later than the original signal.

This impedance mismatch causes interference in the signal resulting in a blurred picture on our TV or even some double imaging if the mismatch is particularly bad.

Now transfer this scenario to PCBs and imagine the consequences if the correct signals were not

reaching their destination at the required time due to a mismatch in impedance.

Basically nothing would work as well as it should. Controlling impedance then sounds like a pretty good idea, but how do you go about it?

HTD PCB manufacturer experts: Why is it Important to Understand Impedance?

HTD PCB manufacturer experts: Why is it Important to Understand Impedance?

It is all about efficiency. Theory shows that maximum signal transfer happens when all impedances along the signal path are matched.

In all circuits which operate under high frequencies and process high speed digital signals, it is important to control impedance.
Impedance control is fast becoming a standard requirement for PCB manufacture and is has become critical in areas such as:

Telecommunications
RF applications
High speed digital applications
Impedance controlled circuits can be found in the electronics you use every day:  your mobile phone, TV, computer, printer and even your car!