Your Reliable Presensitized PCB Manufacturer
PCBMay mainly makes Presensitized PCB. It provides several Presensitized PCB services. We ship Presensitized PCBs and other related goods all over the world.
- One-stop solution for your Presensitized PCB
- More than a decade of Presensitized PCB manufacturing experience
- High-quality and cost-effective Presensitized PCB
- Package delivery is quick and safe
Why PCBMay is Expert in Presensitized PCB Manufacturing
PCBMay has extensive expertise in producing Presensitized PCB. We strive hard to deliver high-quality service to clients worldwide. Depending on your requirements, we can provide several varieties of Presensitized PCB. We can provide you with the highest quality Presensitized PCB.
Our expert technician and engineering team assure the quality of our products. You can always count on PCB. PCBMay is the best option if you require a Presensitized PCB. Don’t hesitate to get in touch with us as soon as possible!
Types of Presensitized PCB Meet Your Requirements
Why Choose PCBMay for Your Presensitized PCB
PCBMay, as a leading Presensitized PCB maker, has an advanced manufacturing line. We can provide full service, including product design, manufacturing, and assembly. We import all of our equipment from the United States and Europe.
PCBMay manufactures and distributes Presensitized PCB to clients all over the world. We distribute them as quickly and safely as possible. We are confident in our ability to provide our services and fully anticipate that your needs will be fully satisfied due to our advanced technology. We worked hard to provide you with the most delicate PCBMay Presensitized PCB. Please get in touch with us right away!
Related Presensitized PCB
Presensitized PCB Production Details As Following Up
|Base Material||KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350B、Rogers4000、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)|
|Board Type||Backplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.|
|Copper Thickness||Min. 1/2 OZ, Max. 10 OZ|
|Maximum Board Size||1100*500mm(43”*19”)|
|Min laser drilling size||4mil|
|Solder Mask||Green, Black, Blue, Red, White, Yellow,Purple matte/glossy|
|Surface Treatment||Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger.|
|Min. Annular Ring||3mil|
|Aspect ratio||10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)|
|Impedance control||±5ohm(＜50ohm), ±10%(≥50ohm)|
|Other Techniques||Blind/Buried Via|
|Via in Pad|
Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:
|SUPPLIER||PCB LAMINATE||TYPE||MATERIAL DATASHEET||TG||TD||DK(1MHZ)||DK(1GHZ)||DK(10GHZ)|
|Hitachi||MCL-BE- 67G||Modified Epoxy||DOWNLOAD||140||340||4.9||4.4||–|
|N4000-13EP SI||Modified Epoxy||DOWNLOAD||210-240||350||–||3.4||3.2|
|Stablcor||ST325||–||DOWNLOAD||Thermal conductivity:75w/m.k(with 1oz copper)|
|ST10||–||DOWNLOAD||Thermal conductivity:325w/m.k(with 1oz copper)|
|Bergquist||ht-04503||–||DOWNLOAD||Thermal conductivity:2.2w/m.k(with 1oz copper)|
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PCBMay- Your Professional Presensitized PCB Manufacturer and Supplier in China
PCBMay is a well-known producer and supplier of PCBs and PCB assemblies in China since 2008. Presensitized PCB and all other kinds of PCB are available. To assure your pleasure, we ensure the excellent quality of every product we manufacture.
PCBMay Presensitized PCB is a form of PCB in which the board’s surface has a specialized photosensitive material covering. This PCBMay Presensitized PCB makes installing your one-of-a-kind original layout simple by transferring (or “burning”) the picture using UV rays. We provide a wide selection of Presensitized PCB to match your project requirements.
During the production process, apply a unique photosensitive coating to the Presensitized PCB. Its photosensitive coating is susceptible to light! It has a “peel-off” layer that shields the specific photosensitive coating from unintended light exposure. We are committed to supplying our clients with the finest quality of Presensitized printed circuit board.
PCBMay is a manufacturer of high-quality Presensitized printed circuit board. Because we have skilled workers and a production team that has been with us for two decades, we can ensure the highest quality. We are confident that we can offer you the best Presensitized printed circuit board and other comparable products.
We are a PCBMay Presensitized circuit board business with ISO 9001:2008, ISO 14001:2015, REACH, and UL certified. It should be unsurprising that PCBMay is the most trustworthy Presensitized PCB manufacturer.
You can receive the most outstanding pricing on a customized Presensitized PCB. Would you please email us any additional questions you have concerns the Presensitized PCB standard? We will reply quickly to your demands and ensure the safety of your package.
Request a quote for your next Presensitized PCB today!
Presensitized PCB: The Ultimate FAQ Guide
If you are an electronics freak, you must know about PCBs. PCB is the part and parcel of electronics. Presensitized PCB is one of the customizable PCBs.
Customizing a PCB with unique features might be fun if you are an electronics professional. It is such a kind of PCB, which you might want to work with. It is low-cost processing as well.
No worries if you are not professional as well. Let’s have some basic knowledge about Presensitized circuit board here.
- What Is Presensitized PCB?
- How To Use Presensitized PCB?
- What Are The Differences Between Presensitized And Traditional PCBs?
- What Is The Step-by-step Procedure For Making Presensitized PCB?
- How To Etch Presensitized PCBs?
- What Are The Benefits Of Using A Presensitized PCB?
- How Can You Get Ultraviolet Photoresist On A Presensitized PCB?
- What Are The Applications Of Presensitized PCBs?
- What Are The Materials Used In A Presensitized PCB?
- Which Components Might Be Used In A Presensitized PCB?
- What Are The Available Surface Finishes For A Presensitized PCB?
- What Is Corrosion Of Presensitized PCB And How Does It Happens?
- How To Prevent Corrosion Of A Presensitized PCB?
- How Many Ways Can You Control The Quality Of The Presensitized PCBs?
- How Can A Presensitized PCB Be Tested During Assembly?
- What PCB Layout And Design Factors Should Be Examined For the Presensitized PCB?
- What Should You Look For When Choosing A Presensitized PCB Manufacturer?
What Is Presensitized PCB?
A presensitized PCB is a specific sort of particular uniquely printed circuit board alongside photosensitive surfaces. It empowers photo-consuming innovation on it to tweak with ultra disregard lights. Despite what is generally expected, Presensitized PCB resembles an ordinary copper-clad PCB with the essential contrast of moving the plan on it.
The exclusive photosensitivity is included in the presensitized PCB during the manufacturing period. It transfers special images coating to the board through exposure to ultraviolet light.
Single Sided Presensitized PCB
The photosensitive covering is incredibly light-touchy! The remarkable photosensitive covering is shielded from accidental light openness by a strip-off layer. Just eliminate the strip off defensive covering prior to presenting yourself to UV radiation!
How To Use Presensitized PCB?
There are different types of PCB available with Kinsten presensitized PCB boards, and you can use a presensitized PCB through the following PCB types.
Single-sided PCBs are the most designed and used PCBs in the electronics industry. You will find it in almost every type of electronics circuit.
Double Sided PCB
Double sided PCBs are PCBs on the two sides, which means it has similar parts in the two sides of the circuit board. The interaction given for the production of the single-sided PCB can likewise be adjusted for a double sided PCB.
Double Sided PCB
A multi-layer PCB is created by integrating at least two double sided circuits on a single board. The layers might be going up to 50 or more for a multilayer PCB.
Flex circuits are like typical PCBs, however, they are made out of an alternate material that is more adaptable than typical PCBs.
Rigid PCB is the most durable type of printed circuit board. Rigid Unbending PCBs are often composed of a polyurethane substance and are used to achieve sturdiness and solidarity.
There are more types of PCBs available to use presensitized PCBs like, such as Rigid-flex PCB, High-frequency PCB, Aluminum Backed PCB, etc.
What Are The Differences Between Presensitized And Traditional PCBs?
The basic difference is the design transformation between the Presensitized PCB and regular PCB. It is the way you can transfer photosensitivity in the regular PCB to make it a presensitized PCB.
There are three methods to transfer a traditional PCB into a presensitized PCB.
Inkjet Masking Method
It is given a strategy to conceal with inkjet ink that is applied to a stage of shading substrate with a color arrangement having a color in a dissolvable. The color arrangement penetrates the shading substrate.
Tone Transfer Method
Toner move is by a wide margin the quickest method to make a circuit board at home. It essentially prints the circuit out on a laser printer, ironing it onto the copper and engraving.
Dry Film Photopolymer Method
One type of thick film is dry film photopolymer. Despite the way that its target and angle proportions are not as highly contrasted as other types of thick film, it is nevertheless appealing in situations where a high goal and high perspective proportion are not required.
Dry Film Photopolymer For Making PCB
What Is The Step-by-step Procedure For Making Presensitized PCB?
When converting a standard PCB to a presensitized PCB, keep in mind that it will take a lot of time, work, and testing. Remember that you’ll be working on a difficult assignment since you’ll be creating a photosensitive board, which is a delicate process.
It may result in failure or error. As a result, keeping in touch with a trustworthy manufacturer like PCBMay is the ideal option.
Here is the step by step procedures to make a presensitized PCB:
Drawing the PCB
Draw your presensitized PCB with the help of PCB drawing software and export them into a pdf file.
Artwork of Your Presensitized PCB
In the event that you start your PCB development project with some unacceptable craftsmanship, it will be a disappointment. Since your PCB configuration is on straightforward sheets, you should print something like three duplicates of your favored fine art. You might ensure that your PCB format is printed accurately thusly.
A Piece Of Presensitized PCB Artwork
You might have to flip simply the Top Layer, Dimension, Vias, and Pads to ensure that you print the necessary circuit.
Presensitized PCB Preparation
The outer layer of the presensitized PCB is protected by a thick dim film both from openness and pollution. The PCB can be generally taken care of as long as the film isn’t taken out. Also, it lessens the danger of harming the board too.
In this way, don’t strip off the film until and except if you are all set to the exposure area.
Gap an arbitrary PCB into two sections with something like 5 mm long or more. These will be utilized to mount the clasp that will go about as the PCB remains during the presensitized PCB development period.
Placing the Board
Cautiously place your board topsy turvy. Spot the board in the right position, and set the arrangement of the artwork at the focal point of the edge.
Utilize the Artwork Which is Easily Accessible
Peel off the protective thick dim film now. Make sure to get a handle on your board along the edges to try not to contact the uncovered areas. Likewise, don’t put the board down until you’ve completed the subsequent stage.
Exposure of PCB
This is the ideal stage for setting up the ultraviolet exposure box with a presensitized PCB exposure time period. It is the following stage to hinder the ultraviolet light from intersecting the dark lines of your circuit plan.
On the inside of the exposure box, place the PCB. The piece of art should be level and in contact with the PCB surface for a crisp picture movement. For this reason, put clear glass on top of the piece of art/PCB.
Turn on the exposure box for a presensitized exposure time of around 8 to 10 minutes.
Fitting the Standoffs of Presensitized PCB
When the presensitized exposure time is finished, recover your load up from the exposure box, and detach it from the craftsmanship. Make sure to hold it by the edges as you did before.
Prepare the standoff. The standoff will work with the development of the designer medium on the two PCB sides during washing. They will likewise forestall the circuit board surface from cleaning with the compartment surface. At the point when you are working for a single-sided PCB, there is no need for the standoff.
Presensitized PCB Development
Place your PCB at the earliest opportunity into a shower made of sodium hydroxide with the delicate part looking up. Then, at that point, promptly, a blue-purple tone shows up and some of the time may be dark.
Shower one more 30 to 60 seconds to eliminate any extra undesirable photoresist.
Tenderly shake the shower such that the pattern is seen at approximately 30″ to 60″. From that point forward, wash the PCB completely with running water. Your PCB is presently prepared for the scratching system.
Here is a video visualization of making a presensitized PCB:
How To Etch Presensitized PCBs?
Etching is a stage in the PCB creation measure that produces cropper follows on the PCBs. This is refined by taking out unnecessary copper from the copper overlay and just leaving the hardware that the tin plating, which is vital for getting the ideal pattern, on it.
In the wake of gathering every one of the fundamental materials, print your design prior to printing the circuit format. Sketch your plan in straightforward acetic acid derivation material to accomplish the ideal outcomes
Printing the acetic acid derivation should be finished utilizing a laser printer rather than a customary inkjet printer. The beneficial thing about printed ink on acetic acid derivation is that it won’t stick and meet the desired outcomes. Employing laser printer toner will, in any event, get the job done.
Ferric chloride, which is a local etching solution, comes in powder or fluid structure. The designer is a powder that must be broken up in warm water.
What Are The Benefits Of Using A Presensitized PCB?
A few benefits are related to presensitized PCBs, which settles on them the ideal decision for some makers of electronic instruments, gear, and parts all over the place. The benefits of presensitized PCBs are as follows.
- They are minimal and save a ton of wire.
- They are characterized by connectivity amongst parts via metal lines rather than multiple current-carrying wires.
- The commonalities tend to be pretty substantial using presensitized PCBs.
- If a presensitized PCB fails or becomes spoiled, it is simple to fix.
- In the event of a breakdown, presensitized PCBs are relatively simple to inspect and restore particular defective parts.
- The orientations of the electrical parts in presensitized PCBs are appropriately constructed and designated on the PCB.
- In terms of assembling the PCBs, a presensitized PCB saves you a lot of time than the traditional PCB.
How Can You Get Ultraviolet Photoresist On A Presensitized PCB?
Among the most fundamental ingredients in dry film, enhancement is UV photoresist. The name Ultraviolet initiated photoresist comes from the fact that it is an obvious material reaction that is launched or begun by Ultraviolet light.
The methodology commences with the use of a light-delicate humic material to the substrate. From that point forward, a designer, likewise named as a dissolvable, is tenderly joined to the space.
From that point forward, a designed substance is employed to the surface gradually and cautiously to obstruct light, guaranteeing that mainly the exposed bits of the PCB are presented to light.
A photosensitive substance gets degraded by light in a positive photoresist circumstance. The architect fades the areas presented to light, leaving a cloak-like covering over the space. Regardless, the photosensitive elements will be fortified by light on account of a negative photoresist. The architect will break down the spaces that aren’t presented to light, leaving a covering in where the cloak didn’t extend.
Let’s check the dry film photoresist complete process here:
What Are The Applications Of Presensitized PCBs?
There are vast applications of presensitized PCBs in the modern era. Because of the electronics in every sector, you will find PCBs almost everywhere also. Here are 7 sectors where the presensitized PCBs are used widely.
As technology advances, incremental innovations are revealed, the medical industry is employing an increasing number of PCBs. PCBs are employed in equipment that is utilized for diagnosis, surveillance, and therapy, among other things.
PCB For Medical Sector
Devices for Consumers
PCBs are required for the operation of cellphones, laptops, and a variety of other consumer devices. PCBs are becoming a greater part of everyday life as we incorporate electronic items into more of our goods.
Parts for Automobiles
Electrical devices have become more common in automobiles. In this case, PCBs are employed.
Parts for Aircraft
Aviation gadgets, just as the PCB, have determinations that are similar to those in the vehicle business.
A wide range of marine vessels and frameworks depend on PCBs to work. This incorporates little vessels, enormous freight ships, submarines, correspondence frameworks, and route gear.
Wellbeing and Security Equipment
Numerous parts of safety frameworks, regardless of whether for homes, organizations, or government structures, depend on PCBs.
Media Communications Equipment
PCBs are a basic piece of the media communications industry. They’re important for buyer gadgets, for example, cell phones, walkie-talkies, etc., yet additionally for the framework that empowers those gadgets to work.
What Are The Materials Used In A Presensitized PCB?
Teflon is a versatile, durable, and compact material used in PCBs. It has a high level of resiliency since it does not grow rapidly in hot weather.
For the most part, generally three metals are needed to develop a PCB are copper, iron, and aluminum. Copper is the most well-known, which is the reason most PCBs are copper coated.
A prepreg is a resin-impregnated thermoplastic. The resin is pre-dried however not set with the goal that it streams, follows, and is totally lowered when warmed.
FR4 is one of the most often used epoxy resins. FR-4 glass epoxy is a well-known greater thermoplastics cover grade with excellent toughness proportions. It’s composed of glass-reinforced cloth with epoxy sap fasteners, and it’s electrically, mechanically, and thermally efficient.
FR-4 Epoxy Resin
Polyimide laminate is more heat lenient than FR4 Epoxy resin, and it additionally has to some degree better electrical lastingness. Also, it is more exorbitant than the FR4.
Which Components Might Be Used In A Presensitized PCB?
The components that are used on a PCB depending on the different needs. Since there are some components that might be used in a PCB most commonly.
Resistors are among the most vital and accessible parts of a PCB. They send an electric flow to deliver a voltage and scatter electric force as warmth.
The capacitor is a component that holds potential energy on it. It stores and supplies electrical charges when more or excessive power is needed anywhere on the PCB.
A transistor is only a switch or controller for enhancing the electronic indications on a presensitized PCB.
Transformers are generally utilized to communicate electrical energy starting with one circuit then onto the next by means of a voltage rise or decrease.
A diode is a piece of electrical equipment that only allows electricity to travel in one way. In addition, it resists the current flow in the opposite direction.
An inductor is a detached electrical part that checks flow variances of electrical current. Coils and chokes are different names for inductors.
Integrated circuits are a mix of diodes, microchips, and semiconductors in a limited structure on a wafer made of silicon. It is additionally called a microprocessor, or chip.
What Are The Available Surface Finishes For A Presensitized PCB?
A PCB surface finish is an internally connected metallic connection between the exposed copper of the PCB’s solderable region and the components.
When keeping the surface without a protective coating, the basic copper surface of copper boards is vulnerable to corrosion, necessitating the requirement of surface finishing.
There are different surface finishes available for a PCB based on their needs. Let’s check them below.
Electroless Nickel Immersion Gold- ENIG
ENIG is among the most used surface finishes among others. ENIG is built with a double layer coating with 2-4 μ” Au over 120-200 μ” Ni. The gold in the finish protects the PCBs nickel, and the nickel protects the presensitized PCBs metal foundation.
Electroless Nickel Immersion Gold- ENIG Surface Finish
Electroless Nickel Electroless Palladium Immersion Gold -ENEPIG
ENEPIG is becoming increasingly popular as a result of its low-cost features. Nickel, Copper, Gold, and Palladium are all present in it. The Palladium distinguishes itself from the ENIG at a lower cost. It protects the Nickel layer against rusting.
Immerion Silver is applied to the base metal of the PCB directly. It is more reliable and cost-effective than ENIG and ENEPIG. It is also lead-free with RoHS compliance. Its typical thickness is 4 to 12u”.
Immersion Tin is also applied directly to the base metal of the sensitized PCB with chemical action. It is affordable, RoHS compliant with the lead-free feature.
Hot Air Solder Leveling- HASL
HASL is the most affordable surface finish available. It creates a thin protective layer on the PCB with tin. But it has a few RoHS compliance issues, and it decreases its popularity.
What Is Corrosion Of Presensitized PCB And How Does It Happens?
Corrosion is the oxidation process that occurs when oxygen reacts with metal, causing it to corrode and lose its significant material characteristics on PCBs.
Because PCBs are mostly metal and are exposed to oxygen, corrosion is unavoidable.
Corrosion On The PCB
How does Corrosion Occur?
Corrosion occurs with two different mechanisms. Electrolytic and Galvanic corrosions are the two.
Electrolytic corrosion happens when adjoining followers become tainted by an ionic fluid or electrolytic arrangement. Little bits start to develop between the two following. On the off chance that the impurity is water, metal corrosion and hydrogen corrosion will begin to develop on the uncovered metal.
At the point when two unmistakable metallic parts come into terminal touch in the presence of an electrical impurity or an electrolyte dissolvable, galvanic erosion happens.
Actually, corrosions normally happen at electrical associations among parts and follow. PCB erosion starts once dampness or some other fluid comes into contact with the electrical association.
How To Prevent Corrosion Of A Presensitized PCB?
All in all, how might you forestall printed circuit board erosion? You can’t stay away from corrosion at all. However, it is possible to defer it past the normal existence of the PCB.
What is a portion of the means for doing this?
Your essential objective when attempting to forestall PCB erosion ought to be to stay away from ionic pollution. Uncovering circuit board parts to dampness with ionic defilement is the main source of PCB consumption. Your main goal ought to consistently be to keep your presensitized PCB and their parts spotless and anhydrous.
The best way to prevent consumption is to cover bare copper areas with a conventional coating. Epoxy coatings, spraying splash coatings, and patch cover are all effective corrosion and oxidation boundaries. If a covering is used, it should be able to resist any heated demands in a PCB that is running at a huge thermal condition.
How Many Ways Can You Control The Quality Of The Presensitized PCBs?
Here are some methods of controlling the quality of your presensitized PCB during manufacturing.
- IPC certification: Check if your manufacturer and technician are certified by IPC for PCB manufacturing.
- Controls over the process. To ensure uniformity in the manufacturing process, detailed production and operational processes are essential.
- Component handling skills: All necessary components must be placed in the right places.
- Investigation and test: All works need to be checked and tested with automation during the process.
- Checking assemblies: Check the assembling process of PCBs if the soldering process is okay.
- Dedicated working area: Ensure an organized and decorated workplace where the place and setups are only dedicated to producing PCBs.
How Can A Presensitized PCB Be Tested During Assembly?
Testing PCBs during manufacturing and assembling ensures the expected final result of the presensitized PCB. There are several methods to test PCBs.
Visual inspection refers to testing the PCB with a magnifying glass to check manually that all soldering is okay.
In this testing method, PCB goes under a huge power load up to 168 hours. It is early-stage testing to find out the durability of the board.
All parts on the PCB are estimated during in-circuit testing (ICT). Flawed parts are distinguished and can be supplanted accordingly.
Automated Optical Inspection (AOI)
AOI utilizes a solitary 2D or two 3D cameras to take high-res pictures of the PCB. Afterward, contrasts these and pictures of a layout leading body of the plan being compared to ensure the similarity.
Automated X-ray Inspection
X-ray testing is a unique testing method with x-ray penetration to the PCB and its components. It can identify the hidden flaws of the PCB.
This is the way of testing presensitized PCB used by the real-life user so that he can be assured that all functionalities are working properly.
What PCB Layout And Design Factors Should Be Examined For the Presensitized PCB?
For designing a high-quality presensitized PCB, you should consider the following factors.
- Material of PCB: It is the most vital fact to understand which material you would use for your presensitized PCB. It depends on the purpose of the PCB whether you use PTEF, or glass-reinforced epoxy resin, etc.
- Copper Traces:The paths produced using copper are the main parts of a PCB. Comprehend their properties, just as their limits while planning them.
Copper Traces On PCB
- Types of Vias: Vias are vital points of PCBs. They allow you to establish connections between the components. So, you have to know about Vias.
- Component Selection:Which components are needed, and understanding where and how to place them is crucial.
- Signal and Power Integrity:One of the most needed facts to consider is ensuring signal integrity and resist the power fall for the flawless performance of your presensitized PCB.
What Should You Look For When Choosing A Presensitized PCB Manufacturer?
One of the most important aspects of PCB manufacturing is selecting the proper manufacturer for high-quality PCBs. To select the best one, look at the following specifications on manufacturers:
A Piece Of PCB
- If the manufacturer has prior expertise in the sector or not
- The ability to produce
- Competency with technology
- Abilities for fulfilling deadlines
- Cost-effectiveness of the products
- Standard factory infrastructure,
- Factory infrastructure,
- Highest quality of products
- Good customer services
It is irrefutable that making PCBs alongside presensitized PCB is one of the most praiseworthy requests in the electronic world. Dominating this fundamental ability can save you a ton of disappointment, time, and assets. PCBMay, one of the main PCB producers may likewise help you to make your ideal PCBs in open ways. Kindly, do get in touch with us today for quality PCB fabrication.