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Pcb Basics | YMSPCB

Chinhu pakuderedza ari zvemagetsi indasitiri anonzi kudhindwa redunhu bhodhi (pcb). Ichi zvakare inokosha pakuderedza kuti kunoita kuti zviomere vanhu vazhinji kutsanangura kuti pcb iri. Nyaya ino ichatsanangura muudzame nemamiriro pcb uye vamwe mazwi yaiwanzoshandiswa mumunda pcb.

Mumapeji mashomanana anotevera, tichakurukura Kuronga pcb, kusanganisira vamwe mazwi, nzira gungano pfupi, uye sumo kuti pcb kugadzirwa rikurumidze.

Ko pcb?

Akadhindwa redunhu bhodhi (pcb) chimwe chezvinhu zvakafanana mazita, uye zvinogonawo kunzi "kudhindwa wiring mapuranga" kana "akadhindwa wiring nemakadhi". ari pcb asati azviratidza, dunhu yaiumbwa pfungwa-to-pfungwa wiring. Rakavimbika Nzira iyi yakaderera zvikuru, nekuti sezvo dunhu apfuura, breakage wedzinza kunogona kukonzera pachena kana pfupi wedunhu ari mutsetse raiva pedyo nebundu.

Ichitenderera zvemichina chinhu mberi guru redunhu michina runogonesa kuti mukurumari uye replaceability pakati rwonzi rwokuyera ichitenderera duku dhayamita waya kumativi Pambiru pejoinhi.

Sezvo Electronics indasitiri anotama Vacuum sepombi uye relays kuti nesilicon semiconductors uye Integrated mumatunhu, kukura uye mutengo zvigadzirwa zvinoriumba vari kuchembera. Electronic zvigadzirwa vari kuonekwa zvakanyanya kakawanda mutengi zvekutepfenyura, zvikaita vagadziri kutsvaka maduku zvikuru mutengo-vanobudirira mhinduro. Saka pcb akaberekwa.

Zvinoumba

The pcb anotarira akafanana multi-layered keke kana lasagna - marongera dzakasiyana zvinhu zviri kugadzirwa, chakatsikirirwa pamwe chete kuchipisa uye namira.

FR4

The substrate of pcb Kazhinji magirazi faibha. Kazhinji, ari Washington City Offices substrate ane pcb rinowanzoshandiswa vachinzi "FR4". Mashoko zvikukutu "FR4" anopa pokuoma uye ukobvu yacho pcb. Kuwedzera FR4 substrate, pane kuchinja vematunhu mapuranga anobudiswa pamusoro kusanduka mukuru-tembiricha mapurasitiki (polyimide kana zvakadai) uye zvakafanana.

Unogona kuwana PCBs ose thicknesses siyana; Zvisinei, Ukobvu SparkFun kuti zvigadzirwa iri kunyanya 1.6mm (0.063 "). Vamwe zvigadzirwa uyewo kushandisa mamwe thicknesses, akadai LilyPad uye Arudino Pro Micro mapuranga ari Ukobvu 0.8mm.

Cheap PCBs uye neburi ndiro zvinoitwa nezvinhu zvakadai epoxy kana phenol, izvo havana mukurumari pamusoro FR4, asi vari isingadhuri zvikuru. Kana pokunamatidza zvinhu pamatanda zvakadaro, iwe uchava munhuwi yakawanda zvakanaka. Izvi rworudzi substrate rinowanzoshandiswa zvikuru pasi-kuguma nevatengi zvigadzirwa. Phenolic zvinhu vane pasi chafariz manyowa tembiricha, uye nomoto nguva refu kunokonzera manyowa uye carbonization, uye anopa kure risingafadzi kuravira.

Zvinotevera nhete chaizvo yemhangura foil rukoko kuti rikazvisundira kupinda substrate kubudikidza kupisa uye namira panguva kugadzirwa. On miviri madziro puranga, kuti foil mhangura aimanikidzwa kumberi uye shure mativi substrate. Mune dzimwe rweruzhinji zvikumbiro, mhangura foil anogona chete richingosimba rumwe rutivi substrate. Kana isu anoreva "kaviri paneeli" kana "maviri-rukoko pepuranga", zvinoreva kuti pane akaturikidzana mbiri dzemhangura foil pamusoro lasagna yedu. Zvechokwadi, mune zvakasiyana pcb mazano, nhamba mhangura foil akaturikidzana vave diki somunhu rukoko kana anopfuura 16 akaturikidzana.

Pakukora yemhangura rukoko achiri guru uye unotaurwa uremu. Vazhinji inotsanangurwa yunifomu kurema imwe tsoka mativi hwemhangura (oz). PCBs akawanda yemhangura Ukobvu 1 oz, asi vamwe mukuru-simba PCBs anogona kushandisa 2 oz kana 3 oz hwemhangura. Change Ounces (oz) pa rutsoka sikweya, riri pamusoro 35um kana 1.4mil mhangura.

Soldermask

Pamusoro mhangura rukoko chinhu solder chifukidzo. rukoko urwu kunoita pcb zvionerei munyoro (kana SparkFun kuti tsvuku). The solder chifukidzo anofukidza zvisaririra pamusoro kwemhangura rukoko kudzivisa zvisaririra pamusoro pcb kuuya kuonana nevamwe nesimbi, solder kana zvimwe conductive zvinhu. Kuvapo solder chifukidzo unokubvumira solder panzvimbo chaiyo uye kudzivirira solder mabhiriji.

Silkscreen

Pamusoro solder chifukidzo, pane chena sirika chinovhara rukoko. Letters, nhamba, uye zviratidzo anodhindwa pamusoro silkscreen ari pcb kuti zviite gungano uye rikutungamirire kunzwisisa zviri nani pamasikiro bhodhi. Tinowanzofunga shandisa silkscreen chiratidzo kuratidza mashandiro zvimwe nembambo kana LEDs.

Vakawanda Ruvara sirika chinovhara rukoko iri chena. Saizvozvowo, sirika chidzitiro rukoko chinogona kuitwa mu chero ruvara. Black, vhudzi, tsvuku uye kunyange yero sirika sefa havasi zvechienzi. Zvisinei, kashoma kuona zvakasiyana-siyana silkscreen ruvara mumwe chete purangazve.

Kazhinji, solder Masiki uswa, asi zvinenge zvose mavara inogona kushandiswa solder masking.

mazwi

Zvino kuti unoziva nemamiriro pcb, ngatitorei Kutarira pcb-chokuita nemashoko.

Hole mhete - A rin'i mhangura iri metallized buri pcb.

DRC - Design pokutonga kuongorora. A chirongwa kuti achaongorora kana akagadzira rine zvikanganiso, zvakadai shorted zvisaririra, zvakare matete zvisaririra, kana makomba chiduku.

The drill Hole Hit - Used kuratidza kutsaudzira of kwaida kuchera nzvimbo uye chaiko kuchera nzvimbo iri magadzirirwo. Sizvo Drilling nzvimbo anokonzerwa kungopotsera chibooreso matomu chinetso mune pcb mukugadzira.

(Gold) Finger - A pachena simbi ikanyanya parutivi bhodhi iri yemanyorero kushandiswa kubatanidza mapuranga maviri. Akadai kumucheto kombiyuta wacho kuwedzera module, kuyeuka tsvimbo navatana mutambo kadhi.

Chitambi Pamakomba - In Kuwedzera V-Cut, pane imwe nzira nzira bhodhi zvakagadzirwa. By wezvamatongerwe simba pamwe pakati vamwe chinoramba mumakomba, zviri nyore kuti kuparadzanisa bhodhi kubva nokuiswa.

Pad - A chikamu simbi pachena pamusoro pemvura pcb rinoshandiswa kuti solder mudziyo.

Kutamba jigsaw - A guru bhodhi rinoumbwa zhinji duku, yakatikurei mapuranga. Zvoga redunhu bhodhi kugadzirwa midziyo kazhinji ane matambudziko kana kubereka mapuranga diki, uye kubatanidza mapuranga duku dzakawanda zvinogona rikurumidze kugadzirwa.

Rakanyorwa mabhii rinowanzodhinda mapepa - A marata formwork (uyewo iripo sezvo mapurasitiki) kuti anoiswa pamusoro pcb kubvumira solder kupfuura dzimwe nzvimbo munguva peungano.

Pick-uye-nzvimbo - A muchina kana muitiro kuti anoisa zvinoumba pabhodhi.

Ndege - A kuramba chidimbu mhangura pamusoro bhodhi. Vazhinji kunorondedzerwa miganhu, kwete nzira. Hunonziwo "Copper Copper"

Metalized Via - A buri pcb rine gomba mhete uye kuifukidza buri pamadziro. The metallized med zvingava kubatana pfungwa imwe chivhariso-iri, zvakaturikidzaniswa ari chiratidzo, kana nokuwedzera buri.

The kuifukidza Buri masvingo kubvumira waya kumativi ose pcb kuti ibatanidzwe.

Reflow pokunamatidza - nyungudika kuti solder zvokuti Mapedhi (SMD) uye mudziyo nembambo zvakabatana pamwechete.

Silkscreen - tsamba, nhamba, zviratidzo, kana Graphics ari pcb. Kumboda pane chimwe chete ruvara pamusoro nerimwe puranga uye kwemupfungwa achiri pasi.

Slotting - zvinoreva chero mugomba nomusi pcb kuti haisi tenderera. Slotting inogona electroplated kana kwete. Sezvo slotting kunoda mamwe nokuveza nguva, dzimwe nguva anowedzera mari bhodhi.

Solder namatidza rukoko - A paiva solder namatidza imwe ukobvu yakaumbwa pamusoro Mapedhi ari pamusoro pegomo mudziyo kuburikidza rakanyorwa mabhii rinowanzodhinda mapepa asati rikaisa zvinoumba pamusoro pcb. Munguva reflow kwacho, kuti solder namatidza inonyunguduka uye anovamba yakavimbika zvemagetsi uye zvokuimba richibatanidza ikanyanya uye mudziyo nembambo.

Pokunamatidza Furnace - A choto pokunamatidza inoisa. Kazhinji, pane shoma solder yakanyungudutswa mukati, uye bhodhi iri kukurumidza achipfuurapo, zvokuti pachena nembambo zvinogona soldered.

Solder Mask - To kudzivirira pfupi nematunhu, ngura, uye mamwe matambudziko, mhangura akafuka unodzivirira firimu. Unodzivirira firimu iri kazhinji manyoro kana kungava mamwe mavara (SparkFun Red, Arduino Blue, kana Apple Black). Anowanzozi "Kusaurayiwa pokunamatidza."

Lianxi - The maviri kunofambidzana nembambo pamusoro mudziyo vari kukanganisa kubatana neboka duku kuderera solder.

Pamusoro Kubhururuka - A nzira ungano apo mudziyo anongotaura inoda kuiswa bhodhi pasina kudikanwa nzira mudziyo nembambo kuburikidza vias pamusoro bhodhi.

Thermal Pedhi - inoreva pfupi zvisaririra kubatana ikanyanya kuti ndege. Kana Pedhi haasi zvakanaka rakagadzirirwa Kupisa nounzenza, zvakaoma kuti vakuchidzire kuti ikanyanya kuti yakakwana pokunamatidza tembiricha panguva pokunamatidza. Usava chafariz Pedhi magadzirirwo uchaita ikanyanya zvikuru namuka uye reflow pokunamatidza nguva achiri refu.

Tevera - A kazhinji kuramba nzira chemhangura pabhodhi.

V-zvibodzwa - An kukwana chekawo weboard kuti kwatanga bhodhi kuburikidza mutsetse uyu.

Via - A buri bhodhi iri yemanyorero kushandiswa chinja anonongedzera kubva rukoko kune mumwe. The chivhariso Buri zvinoreva pamusoro-buri rinofukidza solder chifukidzo kurudzivisa rurege soldered. Connector kana mudziyo mbambo Via, nekuti plugging haina kunodiwa nokuti pokunamatidza kunodiwa.

Wave pokunamatidza - nzira pokunamatidza chivhariso-mu mano. The bhodhi akapfuura pane kugara kumhanya kuburikidza yakaumbwa solder romoto inobereka hwega yepamusorosoro, uye solder nhongonya solder mudziyo nembambo uye vakafumura Mapedhi pamwechete.

YMS munhu High Pachishandiswa Zvigadzirwa Zvemazuva pcb pachena bhodhi basa zvebhizimisi munyika. Mumakore anopfuura 10 'nesimba, YMS kwakasimbiswa kuva High Tech vachida.

With chivako nzvimbo anopfuura 10,000 mativi metres, zviri kubereka pamusoro 300,000 mativi metres pagore ane zvigadzirwa pcb siyana 2 kusvika 20 akaturikidzana, kusanganisira 1Layer pcb , 2Layer pcb, Mutilayer pcb etc.

Welcome to anokurumidza dzoro PCB China.


Post nguva: Aug-07-2019
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