How do you identify a printed circuit board mean of shape size number?
You would have to look inside your computer and take the circuit board out and examine it. It should have the information on it.
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Answer . No, you do not 'grind' up the circuit boards containing the gold. You remove the 'ears' and other parts that are plated with gold. You have a few options as to the heating of the gold, which will not be pure and needs to be separated out from the impurities. The best method without produ…cing hazardous waste is with a Shor refiner. They are expensive. There are other 'dry' methods of extracting the gold using various heating methods, some of which are advertised on Ebay. Either way, if you are burning ANY electronic circuit board, you are producing noxious fumes and this needs to be done outdoors, period. As for the power cord being 'worth' more than the gold in the computer, that's just bullcrap. The older 286, 386 and 486 chips, have much more gold plating on them. With gold holding at $900 per oz, I'm thinking of getting into the refining business. ( Full Answer )
Related Photo:. http://www.makingthemodernworld.org.uk/icons_of_invention/imgIM.1201_el.jpg. This radio is the first working device to use a printed circuit board (PCB), the electronic technology invented by Paul Eisler. An Austrian refugee in London, Eisler made this radio in 1942, following on f…rom initial experiments in 1936. At the time, it was usual to interconnect all components in electronic goods with hand-soldered wires, a method of manufacture which did not lend itself to any high degree of automation. First applied in proximity fuses for anti-aircraft missiles, PCBs have subsequently found near universal application in electronic goods, yielding highly miniaturised devices which can be mass produced. ( Full Answer )
If you want to know a printed circuit board is designed here is the explanation in simple terms. 1. First you decide on the components which are in the design. 2. Need a software in which you can get symbols (both schematic symbols and physical symbols) of standard components and which also all…ows you to create your own symbols for new components which are not in the standard tool library. 3. In schematic capture tool, you will use symbols of components and also connect the pins of components with wire lines to complete the schematic drawing. Based on complexity and size of the design this can be few pages or hundreds of pages. 4. In the layout tool you will have to make a board outline (based on the shape/size of PCB you want to design) and define number of layers etc. 5. Schematics need to be exported to layout using the board outline you designed. Result will be that all the physical symbols will appear in the layout tool along with un-routed wire connections. 6. Now you can place components on the PCB based on floor plan (where you want to place what components) and start routing the connections. Decide thickness of routes or traces based on impedance and current these nets need to carry. Based on how many layers have been defined and needed as per design traces can run through multiple layers 7. When routing is complete, with help of tool you need to create PCB fabrication data for PCB fabricator. These are top level steps involved in a PCB design. There are finer steps like back annotation (process to sync up layout and schematics) which also important. Many tools give options for auto placement, auto routing which can aid in the design. These used with proper constraints and care can help speed up the design process. Check for PCB tool vendor websites. - Neeraj Answer Proton led displays says: Go to www.circuitboards.com scroll down to the links area and click free cad software by cadsoft. My friend told me the other PCB designing software mentioned makes you pay for there software if you want it manufactured outside of there facility. Basically locking you into there price or no price. Cadsoft is free up to a certain layer count I believe. ( Full Answer )
Answer . Semiconductor integrated circuits usually don't have serial numbers on them with the exception of VLSIC's (very large scale integrated circuits) or microprocessors. Semiconductors almost universally have two identifiers marked on them. One is a code the manufacturer uses to identify the …lot (or batch) that the semiconductor came from. The other number is an identifier that can almost certainly be used to find out about the semiconductor, discover its characteristics and what it does. That identification number can be used to cross-reference the device, and there are a number of online resources that will provide cross reference information and even device characteristics without cost save the time it takes to access the data and read it. ( Full Answer )
Typically very less. Selective gold plating is done in PCBs usually on certain pins, mounting holes, edge fingers or guide rails for specialized applications. The amount of gold plated is very less as the thickness of gold plating is very less (typically few microns). So overall amount of gold on ea…ch PCB is very less. ( Full Answer )
Via holes (vias) are provide in a PCB for taking signal traces from one layer to another. So all multi layer PCBs will have via holes. Vias are also provided for supporting and assembling through hole devices or connectors.
1. Remove the soldering iron from the holder and wipe the tip on a sponge. 2. Heat the joint to be soldered. 3. Apply solder to the joint. 4. Apply a small bit of solder to the tip of the soldering iron and return it to the holder.
Printed circuit board are electronic circuits created by mounting electronic components on anonconductive board, and creating conductive connections between them. The creation ofcircuit patterns is accomplished using both additive and subtractive methods. The conductivecircuit is generally copper, a…lthough aluminum, nickel, chrome, and other metals are sometimesused. There are three basic varieties of printed circuit boards: single-sided, double-sided, andmulti-layered. The spatial and density requirement, and the circuitry complexity determine thetype of board produced. Printed circuit boards are employed in the manufacturing of businessmachines and computers, as well as communication, control, and home entertainment equip-ment. ( Full Answer )
grind up the circuit board and melt the board. it will stink so go outside
Depends on the material it's constructed from, the application for which it's being used and the atmospherics to which it's exposed. I have printed circuit boards from the very first model of an RCA transistor radio made in 1957 and the circuit board as well as the electronics still work.
to the man in the street: An integrated circuit is something like an eprom ( a small unit like a chunk of chocolate) that is usually soldered onto a circuit board. A printed circuit board is a slab of board with holes in it. (like a smaller version of a pegboard) that has lines of copper or simila…r printed on it for the purpose of connecting all the integrated circuits and resisters together. short answer = Size breadboard = insulation with holes where you mount components and run wires to interconnect them printed circuit board= insulator with copper laminated. copper is etched away to leave wires .. sometimes in several lamentations components are soldered into holes drilled in the wires Hybrid module= usually a ceramic insulator with copper laminated wires components in beam lead packages electron beam welded to the copper integrated circuit = the insulator is the substrate usually a diode done over most of the Si wafer in the first diffusion components are built by diffusing different materials in more and more layers packages or carriers 7400 ic dip 1" x 1/2" surface mount 1/4" x 1/8" beam lead .050" x .025" SSI MSI LSI small scale, medium scale, large scale... integration has to do with the color of the light red light 760nm won let you work much smaller than 1 micron... blue light 350Nm maybe 0.5 micron uv perhaps .2micron xrays gamma rays are a bit more difficult to mask and control so electron beams are used for smaller stuff perhaps tunneling electrons can bring it down some. perhaps an order of magnitude breakthrough will give us nanotek ( Full Answer )
Wipe it off GENTLY with a lint-free cloth and some electrical contact cleaner. It should be OK.
Never use a acid core solder only resin core should be used and keep the temperature of the soldering iron as low as possible 250 deg C max soldering should be done in a well ventilated space.
That will vary depending on the size of the board, number ofcircuit layers in the board, number of drill holes needed, if theholes must be plated through or not, cutouts or nonrectangularshape of the board, quantity price breaks available, etc.
A Printed Circuit Board (PCB) is the skeleton of most electronicdevices. It provides not only a solid physical base for thecomponents to be mounted upon, but also the electricalinterconnects (traces) between the components.
A: To make thing to work each independent device must be connected together to work. PCB does nothing else but provide real estate for devices to be installed and copper trace etched on the board provide the connection. To begin with the board is nothing but a copper clad and circuit connections are… etched to connect tall these device together ( Full Answer )
It acts as a base to mount electronic components on, and it connects those components together in a way that'll make them work as intended.
This wire should be very near 0.037" diameter. Most are saying thehole size should be at least 1.25 times this diameter as a minimumso that would be about 0.047" or 1.17mm. This is kind of considereda minimum size. A hole could be as much as 1.5 times the wire sizewhich would be 0.055" or 1.41mm. Th…ere is no exact answer but thisis a usable range. Others may say double the wire size but, thatgets to be a really big hole and seems oversized to me. ( Full Answer )
Well, if they're really densely integrated, it's really hard to replace a single broken component.
PCB or printed circuit board are copper clad that are chemically etched to establish connections with parts installed on it making it a working circuit Today, just about every electronic appliance in your home contains a printed circuit board of some type: computers, printers, televisions, stereos…, musical instrument amplifiers and synthesizers, digital clocks, microwave ovens, telephone answering machines and even cell phones. The "motherboard" in a computer is the main printed circuit board that is the heart of a computer. Other circuit boards inside a computer performs functions such as RAM (random access memory), power supplies, modems and video "cards." ( Full Answer )
A broken path can be bridged with a piece of wire, and if it isn't all surface mounted, a broken component can be de-soldered and replaced.
According to the following website: http://www.interfacebus.com/glossary-of-terms-minimum-annular-ring.htmlMinimum Annular Ring The minimum annular ring on a plated thur-hole is the minimum amount of copper (at the narrowest point) between the hole and the edge of the pad after plating of the… finished hole. MIL-STD-275E and IPC class 3 calls for a minimum annular ring of 0.05mm (0.002") edge of hole to edge of pad. MIL-STD-275E also calls out .005 inches for via to trace distance. Minimum Annular Ring; PWB Internal Via Both diagrams indicate minimum annular ring measured from the outside ring of the pad and to the inside diameter of the plated thru-hole for an external pad [below], or to the center of the plated via for an internal pad [above]. Minimum Annular Ring; PWB External Pad Minimum Annular Ring applies regardless of the shape of the PCB pad. The next page shows two examples of different pad shapes . More Printed Wiring Board Terms ( Full Answer )
No possible use at all, it is both corrosive to the copperand will BURN the board material!!!
The short answer is no, but be careful anyway. The board itself is made of paper and epoxy resin which is nottoxic but is not good for you. The real problem is the componentson the board and the solder. All solder on older boards willcontain lead, but most newer boards use lead free solder as much …aspossible. Electrolytic capacitors if they burst can releasecorrosive chemicals and many other components contain mercury,gold, silver and various heavy metals. In other words don't eat itand be sure to wash your hands after handling before you eat orsmoke. There are often flame retardants that are hazardous (carcinogenic)in PC boards. ( Full Answer )
A printed circuit board is basically used to mechanically support while at the same time electrically connecting electronic components by using conductive pathways. The process is very simple. motherboard is a printed circuit ,where all components of the system is connected. Printed circuit board…s are used in nearly all electronic devices. The conducting wires that connect all the components, are printed onto an insulating plastic material such as paxolin or fiberglass. These tracks are commonly made of thin copper sheet stuck to the board. The tracks are then printed using light and a chemical process to remove the unwanted copper. Some boards used in remote controls and wafer thin boards used in ipods etc, are commonly printed, using conductive ink containing silver or carbon. The alternative to printed circuits was to idividually wire the coponents using wire and solder tags. Old tube radios were originally wired this way, but had to be made by hand. Printed circuits allow for automation and mass soldering using a float soldering process on a bed of molten solder. ( Full Answer )
It has a number of purposes. It provides a solid surface to mount the other components onto. It creates the connections in a neat and organized way that would not be possible if you just soldered each component to the next one. It also maintains the spacing to allow heat dissipation.
A printed circuit board (PCB) is a usually flat insulated board with conductors printed on it. It may be single sided, or it may be two sided, or it may have up to 50 internal layers. It is used because it eliminates the time consuming task of hand wiring individual components...they are simply sol…dered to the PCB. ( Full Answer )
A: They operate on the principle if you use their software you should order PCB from them.
When comparing them to breadboards and stripboards: Advantages - it is a permanent method of producing a circuit - they are custom made so can be very small - they can be mass produced and so economical Disadvantages - can't be modified once printed (has to be completely re-designed) - can't …change components ( Full Answer )
A: To make one at home you need a copper clad of the right size a way to mask off the copper that is going to be removed and finally a chemical to do just that remove the copper. popular is ferric sulfide.
Printed circuit boards are typically green or red, with a lot of holes on the surface through which to put the leads of electronic components. An unfinished board will have its traces (lines of conducting material) very visible, until all of the components are added and soldered on, at which point t…hey become the main focal point. ( Full Answer )
No acid is used. In the subtractive process for making PC boards, one of two etchant salt solutions will be used to remove copper from wheretraces are not desired: . ferric chloride . ammonium persulfate In the additive process for making PC boards, copper will be addedwhere traces are desi…red by electroplating from a copper sulfate salt solution. ( Full Answer )
There are many printed circuit boards in a 1996 caravan. Please specify to which system you refer.
If the kettle is a new one, then it should. If it is an older style kettle with no automatic shutoff, then it will probably not.
All I know is it has heavy metal in it and that's poisonous to the environment.
The fastest easiest way is to draw your pattern onto a copper clad board and then etch it in ferric chloride. You can use a permanent marker like a sharpie and draw lines(hint they have to be solid and consistent lines), or you can use tape(I have used electrical tape before).
To conduct electricity and allow the flow of current to the components on the circuit board.
If one has a flexible circuit board it means he has a printed circuit board made out of such materials as paper or plastic. They are used in cars, computers and digital cameras. They allow things to be built lighter and more flexible.
PCB Printed circuit boards are made using copper foil, laminates, resign stage cloth and copper-clad laminates. These items are generally purchased direct from manufacturers.
There is no information about when flexible printed circuit boards (PCB) apply the rule of change, however, flexible PCBs are made with identical materials as rigid PCBs but made with photolithographic technology. They are used for their flexibility, space saving and at times where production constr…aints limit the availability of rigid PCBs. ( Full Answer )
You can find a printed circuit board design online in some blogs or message boards that are interested in designing circuit boards. You can also find some designs on websites that sell kits and circuit boards.
There are quite a number of various steps involved in printed circuit board assembly. The first essential step is attaching electronic components. This can be done by soldering on the components. The circuit board must then be tested in a variety of different ways.
There are a number of printed circuit board manufacturers. Some examples would be Hughes Circuits, RMF Design & Manufacturing, Royal Circuits and e-TekNet.
There are several companies that can perform printed circuit board repair such as GoTronic and EY Technology in the UK. If the damage involved is small, one may also be able to find instructions for minor repairs from technology forums such as Tom's Hardware.
Printed circuit board fabrication is the process of manufacturing PCBs. PCB stands for Printed Circuit Board. Engineers designed this fabrication progress and the purpose of PCB is to mechanically support and electrically connect electronic components.
Generally,there are the below kinds materials for printed circuit boards: 1. Rigid phenolic resin laminate sheet of paper substrate CCL FR-1 economy, flame retardant 2. FR-2 high electrical resistance, flame (cold red) 3. Epoxy copper clad board FR-3 high electrical resistance, flame retardant Polye…ster resin copper clad board 4. Glass cloth plate glass cloth - epoxy copper clad FR-4 board 5. Heat-resistant glass cloth - epoxy copper clad board FR-5 G11 6. Glass cloth - polyimide resin copper clad board GPY ( Full Answer )
In general no because its easy to overheat theboard and lift pads or even entire traces. However where the board has large areas of copper soldered to metalchassis lugs, if you need to unsolder such connections the onlytool likely to be able to apply enough heat is a soldering gun.
The board material is either a paper-phenolic composite ora paper-epoxy composite. The conductive traces are copper . Boards can be made in anything from single sidedto more than 30 layers of copper traces. Many materials have been used over the years and most are suitableas long as they are ins…ulating. The above material is used in early PCBs also known as 'paxolin'. Modern boards are commonly fibreglass. Many plasics are used, but have to be chosen for their safety, ifheated to reduce flamabilty and or emmisions of toxic smoke. ( Full Answer )
Mainly solder in as short a time as possible to avoid burning thetraces causing them to lift. This means using a good qualitytemperature regulated iron that does not cool off when applied tothe joint to be soldered and is not too hot either.
I cannot imagine a modern embedded system that is not built on aprinted circuit board.