Yakadhindwa redunhu bhodhi (PCBS) are boards used as substrates in most electronic devices – both as physical supports and as wiring areas for surface mount and socket assemblies. PCBS inowanzo gadzirwa ne fiberglass, inosanganiswa epoxy resin, kana zvimwe zvinoumbwa nezvinhu.

Pcb mhando sumo

Mazhinji maPCB emidziyo iri nyore yemagetsi ari nyore uye anongova nechete imwechete chete. Zvimwe zvakaomarara Hardware senge makomputa magiraidhi makadhi kana mamaboard emabhodhi anogona kuve nematanho mazhinji, dzimwe nguva akawanda se12.

Although PCBS are usually associated with computers, they can be found in many other electronic devices, such as televisions, radios, digital cameras and cell phones. Pamusoro pekushandiswa mune zvemagetsi zvevatengi uye makomputa, akasiyana marudzi ePCBS anoshandiswa mune dzakasiyana dzimwe nzvimbo, kusanganisira:

• Midziyo yekurapa. Zvemagetsi izvozvi zvawandisa uye zvinoshandisa mashoma simba pane zvigadzirwa zvekare, saka nyowani uye inonakidza matekinoroji ekurapa anogona kuyedzwa. Most medical devices use high-density PCBS for creating the smallest and most dense designs. Izvi zvinobatsira kudzikisira kumwe kusakwana kwakabatanidzwa mukugadzira zvishandiso zvekushandisa mune yekurapa nekuda kwekuda kwehukuru hudiki uye huremu hwakareruka. PCBS dzakapinda mukati mezvinhu zvese kubva kumidziyo midiki (kunge pacemaker) kune makuru (senge X-ray michina kana maCAT scanner).

• Mashini emabhizimusi. PCBS inowanzo shandiswa mune yakakwira-simba maindasitiri michina. Yakakora mhangura PCBS inogona kushandiswa uko ikozvino imwe-ounce mhangura PCBS isingakwanise zvinodiwa. Yakakora mhangura PCBS inobatsira mune zviitiko zvinosanganisira mota macontroller, akakwira-aripo mabhatiri majaja uye maindasitiri mutoro testers.

• lighting. Nekuti LED-yakavakirwa mabhenji mhinduro anofarirwa nekuda kwesimba ravo rekushandisa simba uye nemhando yepamusoro, ndozvakaitawo aluminium backplane PCBS inoshandiswa kuzviita. Aya maPCBS anoshanda sema radiator uye anotendera akakwira mwero wekuchinjisa kupisa pane akajairwa PCBS. These same aluminum backboard PCBS form the basis of high lumen LED applications and basic lighting solutions.

• Automotive and aerospace industries. The automotive and aerospace industries use flexible PCBS designed to withstand the high vibration environments common in both fields. Zvichienderana neyakagadziriswa uye dhizaini, ivo vanogona zvakare kuve akareruka kwazvo, izvo zvinodikanwa mukugadzira zvikamu muindasitiri yekufambisa. They can also fit into tight Spaces that may exist in these applications, such as inside the dashboard or behind the instruments on the dashboard.

Kune akawanda marudzi ePCB mabhodhi, imwe neimwe iine yakasarudzika yekugadzira maratidziro, zvinhu zvemhando uye mashandisiro: imwe chete pcb pcb, yakapetwa pcb pcb, yakawanda-yakaturikidzana pcb, yakaoma pcb, inoshanduka pcb, inomira inochinjika pcb, yakakwira frequency PCB, aluminium kumashure Pcb.

Imwe chete pcb pcb

Imwe-kana-isina-mativi pcb ndeyePCB kana substrate yakagadzirwa kubva kune imwechete substrate. Rimwe divi reiyo substrate rakaputirwa nesimbi yakatetepa. Mhangura ndiyo yakajairika kupfeka nekuda kwayo kwakanaka magetsi magetsi. Once a copper-based coating is applied, a protective welding mask is usually used, followed by the use of all elements on the last screen printing plate.

Pcb mhando sumo

Imwe-rukoko / imwechete-padivi PCBS zviri nyore kugadzira uye kugadzira nekuti ivo vanowisira akasiyana maseketi uye zvikamu padivi rimwe chete. Uku kwese kwese kunoreva kuti vanogona kutengwa nemutengo wakaderera, kunyanya kune yakakwira-vhoriyamu maodha. Yakaderera-mutengo, akakwira-emhando mamodheru anoreva kuti anowanzo shandiswa mune akasiyana mafomu, kusanganisira macalculator, makamera, mawairesi uye stereo michina, solid-state madhiraivha, maprinta uye magetsi magetsi.

Double-layer printed circuit board

The substrate material for a double – or double-sided printed circuit board has a thin layer of conductive metal, such as copper, applied to both sides of the board. Makomba akacherwa nepabhodhi anotendera macircuit kune rimwe divi rebhodhi kuti abatanidze kumatunhu kune rimwe divi.

Pcb mhando sumo

Components of a circuit and a double-layer PCB board are usually connected in one of two ways: using a through-hole or using a surface mount. A through-hole connection means that small wires called leads are fed through the hole, with each end of the leads welded to the right-hand component.

Pamusoro pegomo PCBS haigone kushandisa waya sezvinobatanidza. Instead, many of the small leads are welded directly to the board, meaning that the board itself is used as a wiring surface for the different components. Izvi zvinobvumira kuti dunhu ripedzwe nenzvimbo shoma, kusunungura nzvimbo kuti bhodhi ikwanise kuita mamwe mabasa, kazhinji nekukurumidza uye kuyera zvishoma pane iyo-yepasi-bhodhi bhodhi yaizobvumidza.

Double side PCBS are commonly used in applications that require intermediate levels of circuit complexity, such as industrial controls, power supplies, instrumentation, HVAC systems, LED lighting, car dashboards, amplifiers, and vending machines.

Multilayer pcb

Multi-rukoko pcb inoumbwa nhevedzano yezvikamu zvitatu kana kupfuura zvidimbu zveviri-rukoko PCBS. These plates are then held together with special glue and clamped between the insulation pieces to ensure that excess heat does not melt any of the components. Multi-layer PCBS come in a variety of sizes, as small as four layers or as large as ten or twelve. Iyo hombe multilayer pcb yakambovakwa ndeye makumi mashanu akaturikidzana.

Pcb mhando sumo

For multilayer printed circuit boards, designers can produce very thick, complex designs suitable for a variety of complex electrical tasks. Beneficial applications for multilayer PCBS include file servers, data storage, GPS technology, satellite systems, weather analysis and medical devices.

Hazvichinji-chinji pcb

Rigid printed circuit boards are printed circuit boards made of a strong substrate material that prevents the board from twisting. Probably the most common example of a rigid PCB is a computer motherboard. The motherboard is a multi-layer PCB designed to distribute power from the power supply while allowing all parts of the computer to communicate with each other, such as the CPU, GPU and RAM.

Rigid PCB composition is perhaps the largest number of PCBS manufactured. These PCBS can be used anywhere the PCB itself needs to be set to a shape and remain so for the rest of the life of the device. Rigid PCBS inogona kuve yakapusa imwechete-yakaturikidzana PCBS, kana 8-dura kana 10-rukoko PCBS.

Pcb mhando sumo

Ese akaomarara PCBS ane asina kuroorwa, zvakapetwa, kana multilayer zvivakwa, saka ivo vanogovana zvakafanana kushanda.

Zvichienderana pcb

Kusiyana nePCBS yakaoma, iyo inoshandisa zvisina-tambo zvinhu zvakaita segirazi fiber, inoshanduka PCBS inogadzirwa nezvinhu zvinogona kukotama uye kufambiswa, senge plastiki. Similar to rigid PCBS, flexible PCBS come in single, double, or multi-layer formats. Nekuti zvinoda kudhindwa pazvinhu zvinogadziriswa, zvinowanzo kuve zvinodhura kugadzira.

Pcb mhando sumo

Zvakadaro, inoshanduka PCBS inopa akawanda mabhenefiti pane akaomarara PCBS. The most striking of these advantages is their flexibility. Izvi zvinoreva kuti dzinogona kupetwa dzakakomberedza micheto uye ronda kumativi emakona. Their flexibility saves on cost and weight by using a single flexible PCB to cover areas that might need multiple rigid PCBS.

Flexible PCBS inogona zvakare kushandiswa munzvimbo dzinogona kukanganiswa neakawanda akaomarara PCBS. Environmental hazards. Kusvikira pane izvi, zvinogadzirwa chete kubva kuzvinhu zvinogona kunge zvisina mvura, kuvhunduka, kupisa-ngura kana kupisa-kupisa-mafuta sarudzo iyo yechinyakare yakaoma PCBS inogona kunge isina.

Usazviomesera vanachandagwinyira pcb

When it comes to the two most important overall PCBS, flexible rigid PCBS combine the best of both. The flexible rigid board is composed of multiple flexible PCB layers attached to multiple rigid PCB layers.

Flexible yakaoma PCBS ine akawanda mabhenefiti pane kushandisa akaomarara kana anochinjika PCBS chete mune zvimwe zvinoshandiswa. Semuenzaniso, mahwendefa akaomarara-anochinja-chinja ane huwandu hushoma hwezvikamu pane echinyakare akaomarara kana akapfava mahwendefa nekuti sarudzo dzewiring dzese dziri mbiri dzinogona kusanganiswa kuita ndiro imwechete. Combining rigid and flexible boards into a single rigid-flexible board also allows for a more streamlined design that reduces overall board size and package weight.

Pcb mhando sumo

Flexible yakaoma PCBS inowanzo kuwanikwa mukushandisa uko nzvimbo kana huremu iri yekunetseka zvakanyanya, kusanganisira nharembozha, kamera dzemadhijitari, pacemaker uye mota.

Yakakwira-frequency PCB

Hf PCBS inongedzera kune yakajairika pcb dhizaini yezvinhu panzvimbo pekuvakwa kwePBBB semamodheru apfuura. Hf PCBS ndiwo matunhu edunhu akagadzirirwa kuendesa masaini anopfuura 1 gigahertz.

Pcb mhando sumo

Hf pcb zvinhu zvinowanzo sanganisira FR4 giredhi girazi fiber yakasimbiswa epoxy laminate, polyphenylene ether (PPO) resin uye teflon. Teflon ndeimwe yesarudzo dzinodhura zvakanyanya nekuda kweayo madiki uye akatsiga dielectric nguva dzose, diki dhizaini dhisiki uye yakazara yakaderera mvura yekumwa.

Mazhinji mativi ebhodhi rePCB uye nemhando yayo inoenderana yePCB yekubatanidza inoda kutariswa pakusarudza yakakwira frequency, inosanganisira dielectric kugara (DK), kudzikisira, kurasikirwa, uye dielectric ukobvu.

Icho chakanyanya kukosha pane izvi ndi Dk yezvinhu zviri kubvunzwa. Zvishandiso zvine mukana wakakura we dielectric inogara ichichinja inowanzo gadzira impedance shanduko inokanganisa ma harmonics ayo anoumba chiratidzo che digital uye anotungamira mukurasikirwa kwese kweiyo dhijitari chiratidzo kuvimbika – chinhu icho hf PCBS chakagadzirirwa kudzivirira.

Zvimwe zvekufunga kana uchisarudza mhando yedunhu redunhu uye PC chinongedzo chekushandisa kana uchigadzira hf PCBS inosanganisira:

• Dielectric loss (DF), which affects the quality of signal transmission. Kuderera kwe dielectric kurasikirwa kunogona kukonzera hushoma hwechiratidzo chemarara.

• Thermal expansion. Kana izvo zvinhu zvinoshandiswa kuvaka iyo PCB, senge yemhangura foil, zvine akasiyana emafuta ekuwedzera mitengo, izvo zvinhu zvinogona kupatsanurana kubva kune mumwe nemumwe nekuda kwekuchinja tembiricha.

• Kunwa mvura. Kudyiwa kwemvura kwakakwirira kunogona kukanganisa dielectric kugara uye dielectric kurasikirwa kwePCB, kunyanya kana ichishandiswa munzvimbo dzakanyorova.

• Mamwe maresitor. Zvishandiso zvinoshandiswa kuvaka HF PCBS zvinozotarwa seinodiwa kupisa kupisa, kukanganisa kusagadzikana uye makemikari ane njodzi.

Aluminium inotsigira PCB

Dhizaini yealuminium yakatsigirwa pcb inenge yakaenzana neiya yemhangura yakatsigirwa pcb. Nekudaro, pachinzvimbo chekushandisa fiberglass, inova yakajairika mumhando dzakawanda dzePCBboard, aluminium backplane PCBS inoshandisa aluminium kana substrates yemhangura.

Pcb mhando sumo

Iyo yekutsigira yealuminium yakamisikidzwa neyekuputira uye yakagadzirirwa kuve neakaderera emagetsi ekudzivirira, zvichireva kushoma kupisa kunotamiswa kubva kune iyo insulation kuenda kunotsigirwa. Kana kamwe kuputira kwaiswa, zvidimbu zvemhangura wedunhu kubva pa1 ounce kusvika ku10 inches kukora kunoiswa.

Aluminium yakatsigirwa PCBS ine akati wandei ezvakanakira pamusoro pe fiberglass yakatsigirwa PCBS, inosanganisira:

• Mutengo wakaderera. Aluminium ndiyo imwe yesimbi yakawanda kwazvo pasi pano, inoverenga 8.23% yehuremu hwepasi. Mining aluminium iri nyore uye yakachipa, iyo inobatsira kudzikisa mutengo mukugadzirwa kwemaitiro. Nekuda kweizvozvo, zvakachipa kugadzira zvigadzirwa kubva mualuminium.

• kuchengetedzwa kwezvakatipoteredza. Aluminium haina-chepfu uye iri nyore kudzokororazve. Kugadzira akadhindwa wedunhu mabhodhi kubva kualuminium zvakare inzira yakanaka yekuchengetedza simba nekuti zviri nyore kuungana.

• kupisa kupisa. Aluminium ndechimwe chezvinhu zvakanakisa zvinogona kushandiswa kudzimura kupisa kubva pazvinhu zvakakosha zvebhodhi redunhu. It does not radiate heat to the rest of the plate, but to the open air. Aluminium PCBS inotonhorera nekukurumidza kupfuura mhangura PCBS ehumwe saizi.

• Kugara kwezvinhu. Aluminium inogara yakasimba kupfuura zvinhu senge fiberglass kana ceramic uye inonyanya kukosha kudonhedza bvunzo. Kushandisa substrates dzakasimba kunobatsira kudzikisa kukuvara panguva yekugadzira, kutakura uye kumisikidza.

Zvese izvi zvakanaka zvinoita aruminiyamu PCBS sarudzo yakanakisa yezvikumbiro zvinoda simba rakakura rekuburitsa mukati mekushushikana kwakanyanya, kusanganisira marambi emigwagwa, mwenje wemotokari, magetsi emagetsi, madhiraivhu emota uye maseketi epamusoro eazvino.

Pamusoro penzvimbo dzadzo huru dzekushandisa, aluminium-inotsigirwa PCBS inogona zvakare kushandiswa panodiwa padanho repamusoro rekugadzikana kwemuchina kana ipo pcb inogona kumira yakanyanya mamhepo kushungurudzika. They are less susceptible to thermal expansion than fiberglass panels, which means that other materials on the board, such as copper foil and insulation, are less likely to peel off, further extending the life of the product.

Kwemakore, PCBS yakashanduka kubva kune yakapusa imwechete-yakatsemuka PCBS senge macalculator emagetsi zvigadzirwa kune akaomesesa masisitimu senge yakakwira-frequency Teflon dhizaini. PCBS vawana nzira yavo kupinda munenge maindasitiri ese epasi, kubva pamagetsi akareruka senge magetsi ekugadzirisa nzira dzese kusvika kumamwe maindasitiri akaomarara senge yekurapa kana tekinoroji yeaerospace.

Kuvandudzwa kwePCBS kwave zvakare kwakatungamira mukugadzirwa kwePCB zvekuvakisa zvinhu: haichisiri PCBS chete yemhangura foil yakatsigirwa ne fiberglass. Zvitsva zvekuvaka zvinosanganisira aluminium, teflon uye kunyange mapurasitiki anobhendeka. Bendable mapurasitiki nealuminium kunyanya zvakabatsira kugadzirwa kwezvigadzirwa senge zvakaomarara-zvinoshanduka uye aluminium-yakatsigirwa PCBS kugadzirisa zvinowanzoitika zvinosangana neakawanda maindasitiri.