HTD PCB Expets: Oriental Printed Circuits introducing

Today Jim wants to discuss OPC PCB manufacturer.
To learn this definition, first of all you should know the oriental printed circuits and Asian PCB manufacturer.

What is Oriental Printed Circuits?

Of course oriental printed circuits are from east of earth.
This means you can get your PCB board from the east, like HTD circuits.

Asian PCB manufacturer VS. Oriental Printed Circuits

In fact, above two expressions were very different.
Asian PCB manufacturer mean this PCB factory location is eastof earth, and oriental printed circuits is the board from oriental.

If you want to learn more Oriental Printed Circuits, follows us Linkedin page:https://www.linkedin.com/company/htd-group

The two most common methods for creating that conductive bridge Introducing

The Theory of Electroplating Circuit Board

Electroplating is a process where metal ions are bonded to a metal surface.
The process requires a voltage potential between a copper source (anode) and the plating target (copper circuit).
Both the anode and copper circuit are immersed in a copper sulphate solution with an applied voltage potential.

The two most common methods for creating that conductive bridge are:

Electroless copper plating
Shadow plating

Creating Conductive Bridge help electroplating between layers

This promotes ion flow from the anode to the cathode (the circuit).
Areas of a circuit panel with a voltage potential will get plated, so any part of a copper circuit that is electrically isolated will not get plated.
Since copper layers are separated by dielectric materials, and there is no electrical charge going through the through-hole, electroplating between layers is not possible. In order to allow electroplating, a conductive “bridge” must be coated over the insulating layer.

HTD Circuits Provide Faster & Higher Quality PCBs. Get Your PCB Price Now!

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You should know the secret in PCB design drawing

Identify is important for PCB design process

A way to identify the circuit board, part number and revision
Not only one person to designing PCB boards, identify is used to PCB designers and PCB fabricationworkers Communication.
And identify also is the sign of standard produce process.

PCB design drawing also must trace

Traceablity information about who created/checked/approved the drawing and what design control it belongs to
PCB fabrication is very complex process for most people.
If you just know one or two step, you may make some mistakes.
So during PCB designing process must learn most PCB making process and trace those designs.
If some of PCB drawing have some problem, we can find out the solution about PCB design.
This also the faster handle PCB issues way.

HTD Circuits PCB drawing solution

You know we are leading China PCB manufacturers since 2001.
Rich PCB experience can avoid most PCB fabrication issues.
If you want learn HTD Circuits PCB design identify or PCB design drawing trace, please mail to us.

IPC's market report help you PCB project

Many PCB sales don’t know IPC. Jim don’t want to introduce this simple point. If you really don’t know IPC, please use google to search the definition of IPC.
IPC’s market research regularly unearths interesting findings that may reveal golden opportunities for electronics manufacturers. Here are some of the latest discoveries of interest to North American PCB fabricators:

Flexible PCB VS Rigid PCB

Flexible circuit orders in North America are booming this year and the forecast for the next year is for double-digit sales growth. The North American flex market has grown over the past 3 years while the rigid PCB market has shrunk. Globally, the flex market is now estimated at over $10.2 billion. Yet, U.S. production accounts for only 3.4 percent of the world’s flexible circuits.

HDI PCB VS microvia PCB

High-density interconnect (HDI) is another market that grew in double digits in 2014 and is growing even faster this year. HDI/microvia boards make up about 22 percent of the North American rigid PCB market. Yet the U.S. produces only 2.4 percent of the world’s microvia boards, and just 7 percent of the rigid PCBs produced in the U.S. are microvia boards.

Opportunities or risks of PCB market report

Electronics manufacturers can pinpoint good business opportunities as well as risks with the help of IPC’s market research reports.

Immersion Tin PCB is lead Free type

About Immersion Tin PCB,Jim want to introduce top 4 things below:
Immersion Tin PCB is lead Free type
The capabilities of Immersion Tin Surface Finish PCB
The Function of Immersion Tin
The Use area of Immersion Tin Surface Finish PCB
Place immersion tin PCB mail to jim@htdcircuit.com

Immersion Tin PCB is lead Free type

Immersion Tin is the lead-free alternative to the Hot Air Leveling(Hasl) process on pcbs.
So if you project is require RoHS complance,Immersion Tin Surface Finish PCB is your choose.

The capabilities of Immersion Tin Surface Finish PCB

On printed circuit board surface and the bore holes,the thickness of Tin is between 0.7 μm and 1um.
But about capabilities also depend on every PCB manufacturing factory.
You know the capabilties of China PCB have very difference.

The Function of Immersion Tin

The tin layer protects untreated copper from oxidation; it is a perfect foundation for soldering applications, as well as for plug contacts during the production of Printed circuit Board.

The Use area of Immersion Tin Surface Finish PCB

Within the electronics industry,immersion tin is recognized as a reliable surface finish for both PCBs and IC substrate applications. It is used in many market segments, such as automotive, communications, consumers and industrial electronics.

Mutilayer printed circuit board
FR4 1.60mm Material
1OZ finish Copper
Immersion Tin surface finish
Min Track/Space: 8mil
Min Hole: 0.4mm
Routing outline

2 Layer pcbs
FR4 2.40mm thickness
1OZ base copper
Immesion Tin surface finish
Min line/width: 10/12mil
Min Hole Size: 0.20mm
Black soder mask

Place immersion tin PCB mail to jim@htdcircuit.com

Immersion Silver Surface Finish Comparer with ENIG and HASL

When you compare with ENIG or HASL PCB,Immersion Silver Surface Finish PCB is very new PCB type.
So we must introduce this very care full.And we will introduce several points about Immersion Silver PCB below:
-The difinition of Immersion Silver Plating PCB
-Immersion Silver Surface Finish Comparer with ENIG and HASL
-Hight performance of Immersion Silver Surface Finish
-The Packaging of Immersion Silver PCB

The difinition of Immersion Silver Plating PCB

Immersion Silver Plating is a surface plating technology used for Printed Circuit Boards,it is deposited directly on the copper surface by a chemical displacement reaction and is available in the industry all co-deposit and organic anti tarnish with the immersion silver. This reaction is fast and does not require the relatively high temperatures of ENIG

Immersion Silver Surface Finish Comparer with ENIG and HASL

Immersion Silver finish (also referred to as ‘IAg’), provides a ROHS compliant finish for printedcircuit boards (pcbs), but is thinner than ENIG or traditional HASL finish.

Hight performance of Immersion Silver Surface Finish

Immersion silver offers better performance and superior finishes for final
finishes on PCBs, and has been generally favored by clients.
That is the reason why more and more electronic company choose Immersion Silver PCB.

The Packaging of Immersion Silver PCB

Handling, packaging, and storage are the most challenge in the production of PCBs. It have to be more carefully when immersion silver are done. Packaging of immersion silver printed circuit boardis very important, it has to minimize contact of the surface with the environment and to ensure all materials used in the packaging and during storage are sulfur free.

Multilayer Printed Circuit Board
FR4 1.60mm thickness
1OZ finish copper thickness
Immersion Silver Surface Treatment
6mil min track/space
0.20mm min hole size
Blue solder mask

6 Layer pcb
FR4 2.40mm thickness
1oz base copper
Immersion Silver surface finish
Min line/Space: 4.5/5mil
Min Hole: 0.20mm BGA

If you want place Immersion Silver PCB from us,please mail to jim@htdcircuit.com

What is Immersion Gold PCB?

Do you know the definition of the Immersion Gold PCB Surface Finish?
Today Jim will introduce several parts of it.

-What is Immersion Gold PCB?
-The Strengths of Immersion Gold PCB
-The Advantage of the Immersion Gold PCB Surface Finish
-Compare with Flash Gold Immersion PCB Surface Finish

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What is Immersion Gold PCB?

Immersion Gold,also called ENIG, has been growing as one of the best finishing methods for printed circuit boards.
ENIG is a costlier finish, but offers the best characteristics for pcbs.

The Strengths of Immersion Gold PCB

Immersion gold chemistries offer many strengths like excellent surface planarity (particularly helpful for PCB’s with large BGA packages) coplanarity, excellent wettability, long shelf-life and surface oxidation.

The Advantage of the Immersion Gold PCB Surface Finish

ENIG doesn’t require frequent dummy plating, excellent re-flow cycles, and gives level plating around the shoulders of pads and circuits. Immersion gold finish also provides both good adhesion as well as providing outstanding electrical testability

Compare with Flash Gold Immersion PCB Surface Finish

Compared with flash gold Immersion gold finish is cheaper because the thickness of gold. However, with good solderability.

4 Layer Printed Circuit Board
FR4 2.00mm board thickness
2OZ copper thickness
Immersion Gold surface finish
Min hole size: 0.25mm
Min track/space: 4mil
BGA

2 Layer PCB
FR4 1.60MM Thickness
2OZ base copper
Immersion Gold Surface Treatment
Min line/width: 5mil
Min Hole: 0.22mm BGA

If you want to place HTD Immersion Gold PCB,please mail to jim@htdcircuit.com

Why Choose Lead Free Surface Finish PCB

About the Lead Free Surface Finish PCB,Jim will introduce serveral parts below:

Lead Free PCB Also Require RoHS Compliance
The Price of Lead Free PCB is Affordable
The Advantage of Lead Free PCB Surfacr Finish
Why Choose Lead Free Surface Finish PCB

Lead Free PCB Also Require RoHS Compliance

RoHS compliance,which took effect July 1, 2006, has established a new set of regulations in electronics products. As basic part of electronics, PCBs are defnitely requested to be lead free.

The Price of Lead Free PCB is Affordable

Lead Free PCB have it’s own manfuacturing process.
Lead free hasl pcbs are cheapest compared to Immersion gold pcb, immersion silver pcbs, immersion tin pcbs, except OSP pcbs.

The Advantage of Lead Free PCB Surfacr Finish

However, OSP surface finish has disadvantage of short storage time and get oxidized when open in the air.
Lead FreE hasl finish can be kept more time and is very good for soldering.

Why Choose Lead Free Surface Finish PCB

Lead Free hasl finish are now the most used surface finish on printed circuit production because of following advantages:
excellent wettability, good shelf-file, excellent solder joints, low cost, excellent reflow cycles, excellent surface oxidation and so on.

6 Layer Printed Circuit Board
FR4 1.60mm Board Thickness
1OZ finish copper thickness
Lead Free Hasl surface fsinish
Min Track/Space: 5mil
Min Hole Size: 0.3mm
Matt Green Solder Mask

Multilayer circuit board
FR4 1.60mm thicnkess
1OZ base copper
L/F Hasl Finish
Min Line/Width: 4mil
Min Hole: 0.23mm
Green solder Mask

If you want place Lead Free PCB from us,please mail to jim@htdcircuit.com

Why Choose Lead Free Surface Finish PCB

About the Lead Free Surface Finish PCB,Jim will introduce serveral parts below:

Lead Free PCB Also Require RoHS Compliance
The Price of Lead Free PCB is Affordable
The Advantage of Lead Free PCB Surfacr Finish
Why Choose Lead Free Surface Finish PCB

Lead Free PCB Also Require RoHS Compliance

RoHS compliance,which took effect July 1, 2006, has established a new set of regulations in electronics products. As basic part of electronics, PCBs are defnitely requested to be lead free.

The Price of Lead Free PCB is Affordable

Lead Free PCB have it’s own manfuacturing process.
Lead free hasl pcbs are cheapest compared to Immersion gold pcb, immersion silver pcbs, immersion tin pcbs, except OSP pcbs.

The Advantage of Lead Free PCB Surfacr Finish

However, OSP surface finish has disadvantage of short storage time and get oxidized when open in the air.
Lead FreE hasl finish can be kept more time and is very good for soldering.

Why Choose Lead Free Surface Finish PCB

Lead Free hasl finish are now the most used surface finish on printed circuit production because of following advantages:
excellent wettability, good shelf-file, excellent solder joints, low cost, excellent reflow cycles, excellent surface oxidation and so on.

6 Layer Printed Circuit Board
FR4 1.60mm Board Thickness
1OZ finish copper thickness
Lead Free Hasl surface fsinish
Min Track/Space: 5mil
Min Hole Size: 0.3mm
Matt Green Solder Mask

Multilayer circuit board
FR4 1.60mm thicnkess
1OZ base copper
L/F Hasl Finish
Min Line/Width: 4mil
Min Hole: 0.23mm
Green solder Mask

If you want place Lead Free PCB from us,please mail to jim@htdcircuit.com

Not Only:HASL Finish PCB Full Name

HASL Finish PCB Full Name

HASL or Hot Air Solder Leveling is a type of finish used on printed circuit boards (PCB).

How to Manufacturing HASL Finish PCB?

The PCB is typically dipped into a bath of molten solder such that all exposed copper surfaces are covered by solder. Excess solder is removed by scraping the PCB with hot air knives. The HASL process consists of a pre-clean, fluxing, Hot Air Solder Leveling, and a post-clean. Pre-cleaning is usually done with a micro-etch.

How About the Environment of HASL Finish PCB

Despite the effection of RoHS compliance in 2006, normal hasl finish (hot air solder leveling) is still requested nowadays for special products or purpose.

HASL Finish Compare With Lead Free PCB

Hasl finish has excellent wetting during component soldering which is better than lead free hasl finish;
In the other hand,If you project don’t solding small component,HASL Finish PCB also you best choice for you.

HASL Finish PCB Features introduce

Hot Air Solder Leveling on printed circuit board are unsuitable for use with fine pitch components because of low planarity and high thermal stress during process may introduce defects to pcbs.

2 Sided Printed Circuit Board
2.40mm board thickness
2OZ finish copper thickness
Normal Hasl surface Finish
Min Track/Space: 6/6mil
Min hole: 0.40mm
Solder Mask: Matt Black

6 Sided Printed Circuit Board

3.20mm board thickness

1OZ finish copper thickness

Normal Hasl surface Finish

Min Track/Space: 4/5mil

Min hole: 0.40mm

Solder Mask: Green

If you want place our HASL Finish PCB,Please mail to Jim@htd-pcb.com

You shoul know Gold Finger PCB definition

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 jim@htdcircuit.com

The definition of Buried Vias PCB manufacturing

The definition of Blind holes PCB manufacturing

Blind holes start on an outer layer but terminate on an inner layer.

The definition of Buried Vias PCB manufacturing

Buried Vias exist only between inner layers but do not begin or terminate on an outer layer.

The divided of Blind & Buried vias PCB manufacturing

Blind & Buried vias can be divided into two kinds, mechanical and laser.
Those two kind PCB holes is diviied by the PCB manufacturing process.
If you PCB manufacturing use mechanical to produce those hole,it’s named mechanical hole.

The benefit of Blind & Buried vias PCB manufacturing

Blind and buried vias help to reach PCB density by allowing features and lines to be designed above or below them without making a connection.
Lots of fine pitch BGA and flip-chip component footprints do not allow for running traces and through.
Instead, the blind and buried vias will only connect those layers that are required to have a connection in that specific area, allowing for PCB real estate space savings.

The use area of Blind & Buried vias PCB manufacturing

Blind and buried vias PCB, also known as HDI boards, often used for mobile phones, GPS navigation, wireless product, MID. Notebook.etc.

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8 Layer Blind Holes Printed Circuit Board
1+6+1 Stack up
FR4 1.0MM Thickness
1OZ finish Copper thickness
Immersion Gold Finish
Min Line/Space 3/3 mil
Gold Finger
Designed for Note Book

4 Layer Blind pcb
1+2+1 Stack up
FR4 1.6MM Thickness
3OZ finish Copper thickness
Immersion Gold Finish Surface Treatment
Min Line/Space 8/8 mil

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If you want to order our PCB,please mail to jim@htdcircuit.com

Rigid-flex Printed Circuit Board definition

Rigid-flex Printed Circuit Board definition

Rigid-flex Printed Circuit Board is this kind PCB full name.
But most PCB engineers like RF PCB or Rigid-flex PCB to use.
Rigid-flex PCBs combine the advantages of rigid and flexible printed circuit boards and can take great function of several rigid boards interconnected with cables or connectors.

Cost saving of Rigid-flex Printed Circuit Board

May many PCB guys confuse about Rigid-flex Printed Circuit Board can saving cost.
Becuase most of Rigid-flex PCB manufacturing cost were higher than 1 layer PCB or multi-layer PCBs.
Depite the fact that rigid-flex PCBs cost higher than rigid PCBs, it is the more economical solution. Cost savings can be realized with a lower number of components and lower assembly cost.

Reliability of the Rigid-flex Printed Circuit Board

You know the process of RF PCB manufacturing complex than 2 layer PCB board.
And the reliability issue will more conside in very RF PCB manufacture process.
Besides, the reliability of the final product will be increased as well because of rigid-flexible pcbs.

Widely use area of RF Printed Circuit Board

Rigid-Flex PCB can be found in mobile communications, portable computers, computer peripherals, PDAs, digital cameras.
We have experience in producing rigid-flexible PCBs.
If you want to compare our RF PCB,please let me know or mail to jim@htdcircuit.com

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Description: 4-layer rigid-flexible
Base laminate materials: FR-4 and polyimide
FPC thickness: 0.25mm
Rigid pcb thickness: 1.60mm
Minimum hole diameter: 0.2mm
Minimum line space: 4mil
Minimum line width: 4mil
Copper thickness: H/H/H/H oz
Surface finish: immersion gold

Description: 2-layer Flexible PCB+4 layer Rigid PCB
Base laminate materials: FR-4 and polyimide
FPC thickness: 0.25mm
Rigid pcb thickness: 1.20mm
Minimum hole diameter: 0.2mm
Minimum line space: 4mil
Minimum line width: 4mil
Copper thickness: H/H/H/H oz
Surface finish: immersion gold

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The definition of Flexible Printed Circuit Board

The definition of Flexible Printed Circuit Board

Flexible Printed Circuit Board is a printed circuit made of a flexible insulating substrate, with the advantages that rigid printed circuit board do not have.

The advantages of Flexible Printed Circuit Board

For example, it can be freely bent, winding, folding, in accordance with the layout of space requirements of any arrangements to achieve the integration of components assembly and wires and move freely in 3D space and telescopic.

The benefits of Flexible Printed Circuit Board

FPC can be greatly reduced the volume of electronic products for the needs of the development of electronic products to high-density,miniaturization, high reliability and direction.

The use area of Flexible Printed Circuit Board

Therefore, FPC has been widely applied in the field of aerospace, military, mobile communications, portable computers, computer peripherals, PDAs, digital cameras and other products.

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Number of layer: single Sided Flexible PCB
Terminal contact: single copper double access
Copper foil: 1 oz finished thickness
Base layer and cover layer: 1 mil PI and 25 um adhesive
Surface treatment: electrolytic nickel-gold plating
RoHS directive-compliant
Min Hole Diameter: 0.30mm
Min Track/Space: 5/5mil

Number of layer: single Sided Flexible Printed Circuit Board
Copper foil: 1 oz finished thickness
Base layer and cover layer: 1 mil PI and 25 um adhesive
Surface treatment: electrolytic nickel-gold plating
Gold Fingers Connector
Min Hole Diameter: 0.30mm
Min Track/Space: 5/5mil
RoHS directive-compliant

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If you want place our FPCB,Please mail to info@htdcircuits.com

You should know definition of multilayer PCBs

This post will discuss multilayer PCB about five parts below:
–You should know definition of multilayer PCBs
–Why we need design multilayer PCBs?
–Multilayer PCB manufacturing process very complex
–History of the multilayer PCB manufacturing
–Use area of the Multilayer PCB manufacturing

You should know definition of multilayer PCBs

Printed circuit board with four or more circuit line is called multilayer pcbs or multi-layer printed circuit board.

Why we need design multilayer PCBs?

The quick development of electronics has high requirement to printed circuit board, which single sided or double sided
printed circuit board cannot reach, thus, multilayer pcbs were designed.

Multilayer PCB manufacturing process very complex

Production of multilayer inner graphics in place first, and then made single-sided or double-sided substrate etching printed and included in the specified layer, and then by heat, pressure and be bonded, as to the subsequent drilling is the same and double-sided plated through hole method.

History of the multilayer PCB manufacturing

These basic methods of production and construction method dating back to the 1960s, not much changed, but with the materials and process technologies (for example: lamination bonding technique to solve drilling, glue residue, the provement of the film) become more mature, the accompanying even more diversification to the characteristics of the multilayer.

Use area of the Multilayer PCB manufacturing

Mutilayer PCB are widely used in high technology project such as computer,industrial control,telecommunication, power supply,digital products, medical, automobile, aerospace and so on.

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Multilayer pcbs (4 layer)
FR4 1.60mm board thickness
1OZ finish copper
Immerson Gold finish
Min track/space: 8mil
Min hole size: 0.23mm
Green Solder Mask
Outline: Routing

Mutilayer Printed Circuit Board (6 Layer)
FR4 2.00mm board thickness
1OZ base copper thickness
Immersion Gold surface treatment
Min line/width: 10mil
Min Hole size: 0.27mm
BGA
Complicated Routing Outline.

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If you want place your 2 layer PCB from us,please mail to info@htdcircuits.com