Iyo huru pcb mumidziyo yemagetsi yakafanana nehwaro hweanenge ese ano gadget. Iri redunhu bhodhi rinopa zvese tsigiro uye rinoregedza magetsi kuyerera, saka zvikamu zvakaita semachipisi nemasensor zvinogona kushanda pamwechete. Mishumo inoratidza kuti pcb ikozvino ndiyo moyo wemidziyo kubva kumafoni kuenda kumotokari. Rigid pcbs inobatsira resistors, capacitors, uye semiconductors kubatanidza uye kugara munzvimbo. Musika wemabhodhi aya waidarika mabhiriyoni makumi matanhatu emadhora muna 60 uye unotarisirwa kutokura.
Metric | Kukosha/ Tsanangudzo |
|---|---|
Saizi yemusika muna 2014 | Kupfuura US$60.2 bhiriyoni |
Inofungidzirwa kukura kwemusika muna 2024 | US $ 80.33 billion |
Forecast musika saizi muna 2029 | US $ 96.57 billion |
Kuziva nezve maumbirwo, zvinhu, uye kuti pcb inogadzirwa sei uye inoiswa pamwe chete inotibatsira kuona kuti nei huru pcb mumidziyo yemagetsi inonyanya kukosha.
Zvitsva Zvitsva
Iyo huru PCB yakafanana nemusana wezvigadzirwa zvemagetsi. Inobata zvikamu panzvimbo. Inoita kuti magetsi afambe pakati pezvikamu.
MaPCB anogona kuve ane divi rimwe chete, maviri-mativi, kana multilayer. Mhando imwe neimwe inogadzirwa kune zvakasiyana-siyana zvinodiwa.
Kutora zvinhu zvakakodzera uye zvidimbu zvinobatsira PCBs kushanda zviri nani. Zvinoitawo kuti vagare kwenguva refu. Sarudzo dzakanaka dzinovabatsira kubata kupisa uye masaini zvakanaka.
Kugadzira PCB inoda kungwarira dhizaini, etching, kuchera, uye soldering. Pane macheki akasimba emhando yekuona kuti inoshanda nemazvo.
Michina inobatsira kuisa zvikamu munzvimbo chaiyo. Vanowanawo matambudziko nekukurumidza. Izvi zvinoita kuti michina iwedzere kuvimbika.
Main PCB muElectronics Devices
Core Mabasa
The chikuru pcb mune zvemagetsi midziyo ndihwo hwaro hwezvikamu zvese. Inopa mabasa maviri makuru: kubata zvikamu uye kurega magetsi kufamba. Iyo pcb ipuranga sandara inochengeta machipisi, resistors, uye capacitors munzvimbo. Mhangura nemapadhi zvinogadzira nzira dzekuti magetsi afambe pakati pezvikamu. Iyi setup inoita kuti mudziyo ushande seyuniti imwe.
Iyo pcb ine zvidimbu zvakawanda. Chikamu chimwe nechimwe chinoita chimwe chinhu chakakosha. Iyo substrate inoita bhodhi yakasimba uye yakasimba. Iyo foil yemhangura inogadzira nzira dzemagetsi. Iyo solder mask inochengetedza bhodhi rakachengeteka uye inobatsira kuiisa pamwechete. Silkscreen inowedzera mavara kubatsira vanhu kuziva kwazvinoenda zvinhu.
Cherechedza: Kuti bhodhi rinosanganiswa sei rinoshandura simba raro uye kuti rinoshanda sei. Kuburikidza neburi rinobata zvikamu zvinorema zvakasimba. Surface Mount tekinoroji inoita kuti mabhodhi ave madiki uye akawedzera kutsanangurwa.
Kugadzira pcb kunotora matanho akawanda. Vagadziri vanoronga marongerwo ekutanga. Vanoisa muenzaniso pabhodhi nechiedza kana kuti yakananga imaging. Mhangura yakawedzerwa inotorwa, ichisiya nzira dzinodiwa chete. Kuchera kunoita maburi ekuti zvidimbu zvibatane uye kuti zvikamu zvikwane. Soldering, kutarisa, uye kuchenesa zvinouya pedyo kuti uone kuti bhodhi inoshanda zvakanaka.
kukosha
Iyo huru pcb mumidziyo yemagetsi ndiyo chikuva chikuru, chinowanzonzi mamaboard. Iyo inobatanidza iyo CPU, ndangariro, uye zvimwe zvakakosha zvikamu. Ichi chinongedzo chakakosha pakukurumidza uye nemazvo chishandiso chinoshanda. Iyo pcb inoshandiswa muzvigadzirwa zvakawanda, kubva pamapuranga ari nyore kusvika kune akaoma zvikuru. Rudzi rwega rwega rwakagadzirirwa zvakasiyana zvinodiwa, sekuchengetedza nzvimbo kana kushanda nekumhanya kwakanyanya.
chikamu | Details & Kukosha |
|---|---|
Main PCB Basa | Pakati pepuratifomu inobvumira iyo CPU, ndangariro, uye zvimwe zvikamu kutaura kune mumwe nemumwe, inova kiyi yemashandisiro anoita mudziyo. |
Product Types | Single-side, Double-side, Multi-layer, Rigid, Flexible, Rigid-flex |
Applications | Consumer electronics, Automotive, Industrial, Healthcare, Aerospace & Defense |
Substrate Types | FR-4, Polyimide, PTFE, Ceramics |
Soko Insights | Magadzirirwo uye zvinhu zvinoshanduka sezvo midziyo inova nani, kuratidza iyo pcb inonyanya kukosha kupfuura nakare kose. |
Minda zhinji kushandisa chikuru pcb mumagetsi namano. Izvi zvinosanganisira zvemagetsi, mota, maturusi ekurapa, uye ndege. Multilayer pcbs inobatsira nekugadzira zvinhu nekukurumidza, kuderedza kuvhiringidza, uye kuita michina midiki uye yakasimba.
Multilayer pcbs kuita zviratidzo zviri nani uye kutema kukanganiswa.
Nzira nyowani dzekugadzira nekuvaka rubatsiro kumisa kupisa uye kuita kuti michina igare kwenguva refu.
Cheki panguva yekuvaka iva nechokwadi chekuti bhodhi rega rega rasvika pachiyero.
Tsika magadzirirwo ngaaite pcb kushanda muzvinhu zvakawanda, kubva duku wearables kuti michini huru.
Michina uye vanhu vanobatsira kuisa bhodhi pamwe chete. Machina anoisa zvikamu nekukurumidza uye munzvimbo chaiyo. Reflow soldering inobata zvikamu zvakasimba uye inoita kuti magetsi afambe. Kuongorora kwekupedzisira uye kuchenesa kunoita kuti mudziyo ushande zvakanaka.
Iyo huru pcb mumidziyo yemagetsi iri pakati pegajeti yega yega yemazuva ano. Dhizaini yayo yakangwara, kuvaka kwakaringana, uye yakadzama yegungano inobatsira tekinoroji kuti irambe ichifambira mberi.
PCB Chimiro uye Zvishandiso
Layer uye Mhando
Mapuranga edunhu akadhindwa ane zvidimbu zvinobatsira kubatanidza zvikamu. Nheyo imwe neimwe ine basa rayo. The single-sided pcb ndiyo yakapfava. Iine imwe yemhangura yemhangura yemagetsi nzira. Mapepa edunhu akadhindwa kaviri ane mhangura kumativi ose. Izvi zvinovabvumira kubata masekete akaomarara. Multilayer pcbs akaturikidzana mhangura uye insulation mune akawanda akaturikidzana. Izvi zvinoshandiswa mumakomputa uye mafoni.
Single-sided pcb: Inoshandiswa muzvinhu zviri nyore sema calculator.
Kaviri-mativi pcb: Inowanikwa mumaredhiyo uye magetsi ekushandisa.
Multilayer pcb: Inoshandiswa mumalaptops, mahwendefa, uye maturusi ekurapa.
Magadzirirwo einjiniya marongero anochinja mashandisiro anoita zvishandiso. Chidzidzo chakatarisa zvakasiyana pcb stack-ups. Yakaona kuti nhamba yezviratidziro, uko simba uye pasi pasi zvinoenda, uye hupamhi hwemhangura inotsvaga zvinhu zvese. Dhizaini yakanaka inogona kuderedza ruzha uye kumisa kupindira. Izvi zvinoita kuti michina yakavimbika. Chidzidzo ichi chakayerawo dielectric constant (Dk) uye dissipation factor (Df) kusvika ku15 GHz. Lower Dk uye Df tsika dzakachengeta zviratidzo zvakasimba uye zvakajeka. Izvi zvaive zvakakosha mumagadzirirwo anokurumidza. Zvinyorwa Nhamba 5 zvakashanda zvakanakisisa. Zvishandiso Nhamba 8 uye Nha. Izvi zvinoratidza kuti kutora matanho akakodzera uye zvinhu zvinobatsira zvishandiso kushanda zvirinani.
Zano: Multilayer pcbs inobatsira zvishandiso kumhanya nekukurumidza uye kumisa matambudziko senge crosstalk uye electromagnetic kukanganiswa.
Zvinhu Zvikuru
The zvinhu zvikuru mu pcb sarudza kuti inoshanda uye inogara sei. Mazhinji mabhodhi edunhu akadhindwa anoshandisa FR-4. Uyu musanganiswa wakasimba wefiberglass uye epoxy. Mamwe maPC matsva anoshandisa LCNF. Izvi zviri nani kune zvakatipoteredza. LCNF ine inenge yakafanana yekupisa conductivity seFR-4. Asi ine magetsi mashoma ekupikisa, kunyanya kana mhepo yakanyorova.
pfuma | LCNF Substrate | FR4 Epoxy Glass Fiber Substrate |
|---|---|---|
Kuchengetedza Kwemhepo | 0.245 - 0.302 W/mK | ~0.343 W/mK |
Volume Electrical Resistance (0% RH) | 23.9 × 10³ Ω·cm | 10⁸ – 10⁹ Ω·cm |
Volume Electrical Resistance (50% RH) | 14 × 10³ Ω·cm | N / A |
Volume Electrical Resistance (85% RH) | 9 × 10³ Ω·cm | N / A |
Mainjiniya anoshandisa nzira dzakaita seTaguchi Method yekuyedza zvinhu. Izvi zvinovabatsira kuwana yakanakisisa musanganiswa mumwe nomumwe pcb. Zvinoita kuti vagadzire mabhodhi edunhu akadhindwa anogara kwenguva refu uye anoshanda zviri nani. Zvinhu zvakakodzera kuchengetedza pcb yakasimba. Vanoibatsira kubata kupisa uye kurega masaini achifamba nekurasikirwa kushoma.
Pcb Kugadzira Maitiro
Matanho Overview
Kugadzira pcb ine matanho akawanda. Nhanho imwe neimwe inobatsira pcb kushanda zvakanaka uye inogara kwenguva refu. Kutanga, mainjiniya vanoita chirongwa chekugadzirisa. Ivo vanoshandisa yakakosha software kusarudza kuti zvikamu uye zviteshi zvinoenda kupi. Zvadaro, dhizaini inoiswa pabhodhi nechiedza kana lasers. Izvi zvinoita kuti ive nechokwadi kuti muenzaniso wakajeka uye wakarurama.
Copper etching inouya inotevera. Inobvisa mhangura yakawedzerwa uye inosiya nzira dzinodiwa. Lamination inoshandisa kupisa uye kumanikidza kudzvanya zvidimbu pamwechete. Kuchera kunogadzira maburi ezvikamu uye kubatanidza layer. Iyo solder mask inovhara bhodhi kuti ichengetedze kubva kune tsvina uye kukuvara. Kupedzisa kwepamusoro kunowedzera chidimbu chakatetepa kumapedhi. Izvi zvinobatsira nekubatanidza uye soldering.
Kuedzwa ndiro danho rekupedzisira pakuita pcb. Mainjiniya anotarisa kune akavhurika maseketi, kapfupi, uye mamwe matambudziko. Vanoshandisa midziyo yakaita seAOI neX-ray machine. Aya matanho anobatsira kuwana matambudziko nekukurumidza uye kugadzira mamwe mabhodhi akanaka. Nokuti kuwanda pcb kugadzirwa, matanho aya anofanira kukurumidza uye zvakarurama.
Kuonekwa | Details and Impact on PCB Manufacturing and Yield Rates |
|---|---|
Manufacturing Variables | Mhangura ukobvu, substrate zvinhu, uye dhizaini kuoma kunochinja kuti zviri nyore sei kugadzira pcbs uye vangani vanobuda zvakanaka; mhangura yakatetepa inoita kuti mainjiniya aite nzira diki. |
Unhu Certification | ISO 9001: 2015, IPC zviyero (IPC-6012, IPC-A-610), uye zvimwe zvitupa zvinobatsira kuchengetedza mhando nekugadzirwa zvakafanana nguva dzese. |
Inspection Technologies | 3D AOI, X-ray inspection, microsectioning, metallographic analysis, uye magetsi ekuongorora anobatsira kuwana hurema uye kuderedza marara. |
Statistical Maitiro Kudzora | Kuona matanho akakosha munguva chaiyo kunobatsira kuona matambudziko nekukurumidza, saka kune mashoma zvikanganiso uye akawanda akanaka mabhodhi. |
Unyanzvi Kugona | Michina yepamusoro uye unyanzvi hweDFM hunobatsira kuita pcbs iri nani, kubva pamuenzaniso wekutanga kusvika kune mahombe. |
Quality Control
Quality kuzvidzora anoshandisa miedzo dzakawanda uye macheki ari pcb kugadzira. macheki Izvi nechokwadi mumwe nomumwe pcb yakanaka zvakakwana. Mainjiniya anoshandisa kuona uye X-ray cheki kuti vawane matambudziko pamusoro uye mukati. Peel bvunzo dzinoratidza kana akaturikidzana akabatana zvakanaka. Solderability bvunzo tarisa kana bhodhi rinogona kubata kupisa kana zvikamu zvawedzerwa.
AOI uye kuongorora kubhururuka kunobatsira kutsvaga maseketi akavhurika kana majoini akashata. Kuenderera mberi kwekuyedza kunotarisa kana nzira dzese dzichishanda sezvadzinofanirwa kuita.
Microsection ongororo anotarisa mukati pcb kutarisa akaturikidzana.
Thermal stress test inoratidza kana pcb inogona kubata inopisa uye kutonhora.
Hi-pot yekuongorora inotarisa kana bhodhi rinogona kutora yakakwira voltage pasina kutyora.
Impedance bvunzo inoita kuti masaini echokwadi arambe akasimba, izvo zvakakosha kune zvinokurumidza zvishandiso.
Vagadziri vanoshandisa maitiro ekudzora uye kuronda matambudziko kuti vave nani. Vanotevera mitemo yakasimba seIPC-6012 uye mamwe maitiro. Vazhinji vanoshandisa Six Sigma kukwidza goho rekutanga kubva pa95% kusvika 99%. A akanaka pcb muiti anoshandisa zvidzoreso izvi kupa yakavimbika mapuranga kuti gungano. Matanho aya anoita shuwa kuti pcb yese muhuwandu pcb kugadzirwa inosangana nezvinodiwa zvemazuva ano zvemagetsi.
PCB Assembly
The pcb gungano muitiro inoita kuti pcb huru ishande. Mainjiniya anotanga nekugadzirisa mafaera ekugadzira. Vanoongorora chimwe nechimwe vasati vaenderera mberi. Tevere, vashandi vanowana zvikamu zvese uye isina pcb. Solder paste inoenda pamapedhi ane stencil. Iyi nhanho inobatsira kuita hukama hwakasimba panguva yekusangana.
Component Placement
Michina inoisa zvikamu paPCB nekukurumidza uye nekungwarira. Sarudza-nenzvimbo marobhoti anofambisa tumachipisi tudiki uye zvinopikisa. Vanotevera mafaira ekugadzira zvakanyanya. Iyo pcb inopinda muvheni yekuyerera inotevera. Kupisa kunonyungudutsa solder paste uye kugadzira majoini akasimba. Zvimwe zvikamu, senge zvinobatanidza kana hombe capacitor, shandisa kuburikidza-gomba tekinoroji. Vashandi kana michina inoisa zvikamu izvi panzvimbo. Wave soldering inovabata zvakasimba kune pcb.
The pcb gungano muitiro anofanira kuchengeta ose chikamu munzvimbo yakarurama. Kunyangwe zvikanganiso zvidiki zvinogona kuita kuti mudziyo utadze. The chikuru pcb akafanana mwoyo mudziyo. Inobatanidza zvikamu zvose uye inoita kuti zvishande pamwe chete.
Kuongorora uye Kuchenesa
Unhu macheki anokosha zvikuru pcb gungano. Solder paste yekuongorora inoshandisa 3D zvishandiso kuyera pad kureba uye kufukidzwa. Automated Optical Inspection (AOI) inotarisa zvikamu zvisipo kana zvisiri izvo. X-ray ongororo macheki mukati pcb matambudziko akavanzwa ari solder majoini. Zvishandiso izvi zvinogona kutarisa 30-40 majoini sekondi yega yega. Izvi zvinopa anenge akazara macheki emidziyo yakakosha.
In-dunhu bvunzo macheki kana pcb gungano anoshanda zvakanaka. Data kubva kuAOI neX-ray inobatsira mainjiniya kuona matambudziko nekuita kuti basa rive nani. Statistical Process Control (SPC) inoshandisa iyi data kuchengetedza mhando yepamusoro.
Mushure mekutarisa, kucheneswa kunobvisa chero yakasara flux kana tsvina. Danho iri rinochengeta pcb yakachengeteka kubva ngura uye inobatsira kuti igare kwenguva refu. Yakachena pcbs rubatsiro midziyo kushanda nani uye kugara kwenguva refu.
Zano: Mazuva ano ongororo maturusi uye kuchenesa matanho anobatsira ose pcb gungano kusangana yakasimba unhu mitemo.
Iyo huru pcb inowanikwa pakati pese mudziyo. Dhizaini yayo yakangwara, zvinhu zvakasimba, uye tekinoroji yekubatsira kuvaka inoshanda nemazvo. Mainjiniya anoshandisa nzira nyowani kuita yega yega pcb yakaoma uye yakavimbika. Mafoni, mota, uye maturusi ekurapa zvese zvinoda bhodhi iri kuti rishande.
Kudzidza nezve pcb kunoratidza kuti basa rakawanda sei uye nehanya zvinopinda mune yega gadget.
FAQ
Chii chinonzi PCB?
PCB inomirira Printed Circuit Board. Mainjiniya anoshandisa maPCB kubatanidza uye kutsigira zvikamu zvemagetsi. Aya mabhodhi anobatsira zvishandiso kushanda nekuita kuti magetsi afambe pakati pezvikamu.
Sei zvigadzirwa zvemagetsi zvinoda PCB huru?
Iyo huru PCB inoshanda semusana wechigadzirwa. Inobata zvikamu zvose zvakakosha panzvimbo. Iyo zvakare inobvumira masaini uye simba kufamba pakati pemachipisi, masensa, uye zvimwe zvinhu.
Mangani angave nePCB?
A PCB inogona kuva nechikamu chimwe, zviviri, kana zvakawanda. Zvishandiso zviri nyore zvinoshandisa mabhodhi e-single-layer board. Complex gadget, semakomputa, anowanzo shandisa multilayer PCBs ane mana kana anopfuura akaturikidzana.
Ndezvipi zvinhu zvinoshandiswa nemainjiniya kugadzira maPCB?
Mazhinji maPCB anoshandisa FR-4, yakasimba fiberglass zvinhu. Mamwe mapuranga anoshandisa mapurasitiki anokosha kana ceramics kuti zvive nani kupisa kupisa. Denda remhangura rinogadzira nzira dzemagetsi.
Mainjiniya anotarisa sei kana PCB ichishanda nemazvo?
Mainjiniya anoshandisa midziyo yakaita semichina yeAOI, maX-ray, uye bvunzo dzemagetsi. Aya macheki anobatsira kuwana matambudziko akadai senzira dzakaputsika kana majoini akaipa ekutengesa. Kunyatsoyedzwa kunovimbisa kuti PCB yega yega inosangana nemhando yepamusoro.
