PCB knowledge

Typis Circuie Tabula (PCB) is short for Printed circuit Board. Solet in materia velit, secundum praefinitum consilium, e circulo impresso factae, componentibus impressis vel complexione graphice utriusque conductivi, quae in circuitione impressa appellatur. Graphium conductivum electrici connexionis inter partes provisae in subiecta insulating circuitione impressa appellatur. Hoc modo, impressi circuli, vel impressi lineae confectae tabulae, dicuntur tabulae circuli typis impressae, notae etiam tabulae impressae vel circuli tabulae impressae.

PCB is indispensable for almost all electronic equipment we can see, from electronic watches, calculators and general computers to computers, communication electronic equipment and military weapon systems. As long as there are no electronic components such as integrated circuits, PCB is used for the electrical interconnection between them. It provides mechanical support for fixed assembly of various electronic components such as integrated circuits, realizes wiring and electrical connection or electrical insulation between various electronic components such as integrated circuits, and provides required electrical characteristics, such as characteristic impedance, etc. At the same time to provide automatic solder blocking graph; Provide identification characters and graphics for component installation, inspection and maintenance.

How are PCBS made? When we open the thumb drive of a general-purpose computer, we can see a soft film (flexible insulating substrate) printed with silver-white (silver paste) conductive graphics and potential graphics. Because of the universal screen printing method to get this graph, so we call this printed circuit board flexible silver paste printed circuit board. Different from the motherboards, graphics cards, network cards, modems, sound cards and printed circuit boards on home appliances we see in Computer City. The base material used is made of paper base (usually used for single side) or glass cloth base (often used for double-sided and multi-layer), pre-impregnated phenolic or epoxy resin, one or both sides of the surface glued with copper book and then laminated curing. This kind of circuit board covers copper book board, we call it rigid board. Then we make a printed circuit board, we call it a rigid printed circuit board. A printed circuit board with printed circuit graphics on one side is called a single-sided printed circuit board, and a printed circuit board with printed circuit graphics on both sides is interconnected on both sides through the metallization of holes, and we call it a double-panel. If using a double lining, two one-way for outer layer or two double lining, two blocks of single outer layer of the printed circuit board, through the positioning system and alternate insulation adhesive materials and conductive graphics interconnection according to design requirement of printed circuit board becomes four, six layer printed circuit board, also known as multilayer printed circuit board. There are now more than 100 layers of practical printed circuit boards.

Productio processus est PCB is relatively complex, which involves a wide range of processes, from simple mechanical processing to complex mechanical processing, including common chemical reactions, photochemistry, electrochemistry, thermochemistry and other processes, computer-aided design (CAM) and other knowledge. And in the process of production process problems and will always meet new problems and some problems in didn’t find out the reason disappears, because its production process is a kind of continuous line form, any link wrong would caused production across the board or the consequences of a large number of scrap, printed circuit board if there is no recycling scrap, Process engineers can be stressful, so many engineers leave the industry to work in sales and technical services for PCB equipment or materials companies.

Ut ulterius PCB intelligat, necesse est ut intelligatur processus productionis plerumque unius quadranguli, duplex quadratum tabulae ambitus impressorum et tabulae multilateri ordinariae, ad altiorem eius intelligentiam.

Trilineum rigidum impressum tabulae impressae: – singula aenea induta – blank ad radendam, aridam), exercendis vel pungendis -> velum imprimendi anaglyphorum exemplaris vel cinematographici resistentia utens ad curandam reprimendam laminam fixam, aeris engraving et aridam ad resistendum materia typographica, ad. LIQUET, siccum, graphice resistentia graphice graphice (vulgo oleum viride adhibuit), UV sanare ad characterem notati graphice velum imprimendi, UV curandi, preheandi, pulsandi, et figurae – electricae apertae et breves circuitionis test – scrubendi, exsiccandi → prae coating. glutino anti-oxidant (sicco) vel tin-spars calidum aerem adaequationis → inspectionem packaging → productorum effectorum opificem.

Duplex rigidum impressum tabulae trilineum: – duplex postesque tabulas aeneas vestitas – blank – laminas – nc terebra dux foramen – inspectio, deburens scrub – lamina chemica (dux foraminis metallizationis) – lamina aeris tenuis (plena tabula) – inspectio scrub -> velum excudendi ambitum negativum graphics, remedium (cinematographicum umidum, detectio et progressus) – inspectio et reparatio bracteae – lineae graphicae platingae et plumbi (corrosionis resistentiae nickel/auri) -> ad imprimendum materiam (coating) – etching aeris – (stannum furnum ) ad purgandum, vulgo graphics screen imprimendi resistentiam glutino adhibendi caloris curandi oleum viride (photosensitivum cinematographicum vel umidum vel cinematographicum, detectionem, evolutionem et calorem sanandum, saepe calefaciendum curandum oleum viridis photosensitivum) et siccam purgationem, ad notam tegendam imprimendi characteris graphics, curandi, (stannum vel organicum pelliculae tegimen munitum) formare processus, purgare, exsiccare ad electricum probationem in-off, emendas et peractas.
Per metallizationem foveam methodus multilayer fabricandi fluit ad interiorem tabulatum aeris incisura indutum duplex postesque, scrube ad perforatam positionem terebrandam, adhaerentem aridam tunicam vel efficiens ut resistat expositioni, evolutionis et engraving et cinematographico – interiore grossitie et oxidationis. – perscriptio interior – (productio lineae exterioris aeris simplicium laminarum vestitorum, B – ligamen scheda, lamina connexio schedae inspectio, terebra positio foraminis) ad laminas, plures potestatem exercendi -> foramen et cohibere ante curationem et laminam chemicam — tabulam plenam ac tenues aes plating inspectionem efficiens – lignum ad resistendum ad cinematographicam aridam obducendam vel efficiens ut agentem in fundo exposita tunica, evolutionis et bracteae – lineae graphicae electroplaticae – vel nickel/aurum platando et electroplatando plumbum offensionis ad cinematographicum et engraving – reprehendo – screen printing resistentia welding graphics aut levi induci resistentia welding graphics – typis character graphics – (calidum aerem aequandi vel organicicinematographica cinematographica) et numerorum imperium figura lavatio → purgatio, desiccatio → nexus electrica deprehensio → producti inspectionis confecti → sarcina officinas.

Ex processu chartularum evolutionis constare potest quod multilayer processum e duobus faciebus metallizationis processu evolvit. Praeter processum bipertitum, plura singularia continet: foraminis metallilis internexi internexi, decontaminationem et artem et epoxy, systema situm, laminationem et materias speciales.

Communis tabula computatoria nostra plerumque epoxy vitrei pannum duplex impressum tabulae ambitus impressum est, quae unum latus componentibus inseritur, et alterum latus superficies glutino pedis componens, perspicere potest compages solidorum valde regulares, pedis discreti glutino componentes. ex his solidaribus articulis caudex superficies vocamus. Cur reliqua fila aenea in illis stannum non habent? Quia praeter laminam solidariam et alias partes necessarias solidandi, reliqua superficiei iacuit obsistentiae cinematographicae fluctuationis. Eius superficies solida velum plerumque viridis est, et pauci utuntur flavi, nigri, caerulei, etc., itaque oleum solidale saepe oleum viride in industria PCB appellatur. Munus eius est impedire phaenomenon pontis fluctus glutino, qualitatem glutino emendare et solidare conservare et sic porro. Etiam accumsan tabulae impressae permanentis tutelae partes agere potest humoris, corrosionis, rubiginis et mechanicae abrasionis. Ab extra, superficies cinematographica levis et clara viridis interclusio est, quae photosensitiva ad laminam veli et caloris oleum viride curandum est. Non solum species melior, interest ut codex accuratius altus est, ut ad meliorem iuncturam solidioris firmitatem.

Ut e tabula computatrali videre possumus, partes tribus modis installantur. Obturaculum in processus institutionis tradendae in quo pars electronica inseritur per foramen super tabulam ambitum impressam. Perspicuum est biforme tabulae ambitum impressum per foramina esse: alterum simplex componente foramine insertum; Secunda est, quae componens inseritur et connexio per foramen duplex; Tertius est simplex per foramen duplex; Quattuor basis est bracteae institutionis et foraminis positio. Aliae duae modi ascendentes sunt superficies ascendentes et directe ascendentes chip. Re quidem vera, chip technologia directa adscendens considerari potest ut ramus superficiei technologiae ascendentis, est chip impressa tabula directe affixa, et deinde cum tabula impressa coniungitur per modum filum glutino seu balteum loading methodum, flip methodum, trabis plumbi methodus et alia technicae packaging. Superficies cucurbitae est in superficie componente.

Superficies altae technologiae haec commoda habet:

1) Quia tabula impressa late per foramen technologiarum connexionis magnae per foramen vel defossum excludit, densitatem in tabula impressa meliorem efficiens, aream tabulae impressam (vulgo tertiam partem obturaculi institutionis) minuit et numerum minuere potest. stratis ac sumptibus consiliorum impressorum.

2) Pondus redactus, effectus seismicus emendatus, usus solidoris colloidalis et novarum technologiarum conglutinatio, producti melioris qualitatis ac constantiae.

3) Ob augendam densitatem et breviationem plumbi longitudinis, reducuntur capacitas parasitica et inducta parasitica, quae magis ad parametros electricas tabulae typis impressae excolendas.

4) Facilius est automationem percipere quam obturaculum institutionis, meliorem institutionem celeritatem ac laboris fructibus facere et conventus sumptus minuere.

As can be seen from the above surface safety technology, the improvement of circuit board technology is improved with the improvement of chip packaging technology and surface mounting technology. The computer board that we see now card its surface stick installs rate to rise ceaselessly. In fact, this kind of circuit board reuse transmission screen printing line graphics is unable to meet the technical requirements. Therefore, the ordinary high precision circuit board, its line graphics and welding graphics are basically sensitive circuit and sensitive green oil productio processus.

Cum evolutionis inclinatio tabulae ambitus altae densitatis, productio necessaria tabulae ambitus altior et superior fit. Magis magisque novae technologiae ad tabulam ambitus producendam applicantur, ut technologia laser, resina photosensitiva et cetera. Superficialis haec est quaedam superficies inductio, multa sunt in productione circuli tabulae propter angustias spatii, sicut foramen caecum, tabula curvis, tabula teflon, photolithographia et cetera. Si altius studere vis, laborare debes.