BGA vs. QFN: Musiyano Mukuru Mukusarudza IC Package
Mufananidzo 1. BGA vs. QFN
Nhanganyaya: Nei BGA vs. QFN Zvichikosha
Mukugadzirwa kwemagetsi kwemazuva ano, kusarudzwa kwemapakeji eIC kunokanganisa zvakananga kugadzirwa kwePCB, mashandiro emagetsi, uye mutengo wezvigadzirwa. Pakati pematekinoroji ekuisa pamusoro pechinhu, BGA (Ball Grid Array) neQFN (Quad Flat No-Lead) zvinomiririra nzira mbiri dzakasiyana dzekurongedza zvikamu, imwe neimwe ine hunhu hwakasiyana hwakakodzera zvinodiwa zvakasiyana zvekushandisa.
Chinyorwa chino chinopa kuenzanisa kwakarongeka kweBGA vs. QFN packaging kuti itungamirire mainjiniya mukuita sarudzo dzakavakirwa pamiganho chaiyo yepurojekiti.
Tsananguro huru: Kunzwisisa BGA neQFN
Chii chinonzi BGA Packaging?
BGA (Ball Grid Array) inoshandisa mabhora akasiyana-siyana e solder akarongwa mu grid pattern pasi pe package kuti asimbise kubatana kwemagetsi ne PCB. Iyi architecture inogonesa kuwanda kwema pin mukati me compact footprints, zvichiita kuti BGA ive yakakodzera kune ma IC akaomarara akadai se processors, FPGAs, uye high-density memory devices. Ma spherical solder joints anopa hunhu hwemagetsi hwakanaka zvichienzaniswa nema package ekare ane lead.
Chii chinonzi QFN Packaging?
QFN (Quad Flat No-Lead) ipakeji isina lead pamusoro ine mapedhi akavhurika pamucheto wayo uye kazhinji padhi repakati rekupisa pasi. Dhizaini iyi inopa chimiro chisina kusimba chine kugona kweI/O kuri pakati nepakati. Padhi rekuisa die-attach rinoita kuti kupisa kusapararire, zvichiita kuti QFN ikodzere maIC ekutonga simba, maRF modules, uye maapplication ane nzvimbo dzakamanikana.
Mufananidzo 2. Maumbirwo eBGA Package
BGA vs. QFN: Kuongorora Kuenzanisa Kwakadzama
Magadzirirwo ePin neConnection
Kuenzanisa kweBGA vs. QFN kunotanga nehurongwa hwekubatanidza hwakakosha. Mapakeji eBGA anoshandisa grid yebhora yakazara, inokodzera mazana kana zviuru zvekubatanidza kweI/O. QFN inoshandisa mapedhi ekunze, ichideredza kuwanda kwemapini asi ichirerutsa kuoma kwehurongwa. Kune magadzirirwo anoda nzira yakakura yekutumira masaini kana ma interfaces ane bandwidth yakawanda, BGA inopa mabhenefiti akakosha mukuwanda kwekubatanidza.
Kushanda Kwemagetsi uye Kuvimbika Kwechiratidzo
Pakuongorora BGA vs. QFN pamashandisirwo ekumhanya kwakanyanya, hunhu hwemagetsi hunosiyana zvakanyanya. Nzira pfupi dzeBGA dzinobatanidza die nePCB dzinoita kuti inductance iderere uye kuvimbika kwesignali kuve nani pamafrequencies akakwira. QFN inoshanda zvakakwana kumacircuits ekumhanya kuri pakati nepakati asi inogona kukonzera kuora kwesignali muRF inoda simba kana madhizaini edhijitari anomhanya zvakanyanya uko mhedzisiro yeparasite inova yakakosha.
Hunhu hweKutarisira Kupisa
Kushanda kwekupisa muBGA vs. QFN kunoenderana nekugadzirwa kwepakeji uye kubatanidzwa kwePCB. BGA inogovera kupisa mumabhora akawanda e solder, ichipa kubatana kwakanaka kwekupisa kubhodhi. QFN inoshandisa thermal pad yayo yakajeka kuti iite zvakananga kupisa, izvo zvinogona kushanda zvakanaka kana zvakabatana nePCB copper yakakwana uye thermal vias. Kune mashandisirwo ane simba guru, zvese zvinoda dhizaini yekupisa yakanyatsonaka, kunyangwe chimiro chakareruka cheQFN chinowanzo batsira mhinduro dzekupisa dzakatwasuka.
Kusangana uye Kuoma Kwekugadzira
Kufunga nezvekugadzira zvinhu zvinopesvedzera zvakanyanya sarudzo yeBGA vs. QFN. QFN inopa majoini anooneka e solder pamucheto wepakeji, zvichiita kuti kuongororwa kwemaziso uye nzira dzekugadzirisa zvinhu dzive nyore. BGA inovanza majoini pasi pepakeji, zvichiita kuti pave nemichina yekuongorora X-ray nenzvimbo dzekugadzirisa zvinhu dzakagadzirwa. Dhizaini yePCB yeBGA inowanzoda mamwe ma layers, microvias, uye tolerances dzakasimba, zvichiwedzera kuomarara kwekugadzira uye mutengo.
Mufananidzo 3. Maumbirwo eQFN
Zvinhu Zvinokonzera Mutengo uye Kugadzirwa muBGA vs. QFN Sarudzo
Kuongororwa kwemitengo yeBGA vs. QFN kunosanganisira mitengo yezvinhu, kugadzirwa kwePCB, uye mari yekubatanidza. QFN inowanzoda maPCB akareruka maviri kusvika mana ane zvimiro zvakajairwa, zvichideredza mutengo webhodhi. Magadzirirwo eBGA anowanzo da kuverengerwa kwakawanda kwezvikamu, tekinoroji yeHDI, uye maitiro ekubatanidza akaomarara. Zvisinei, pamashandisirwo apo huwandu hweBGA hunogonesa zviyero zvidiki zvebhodhi, mutengo wese wesystem unogona kubatsira BGA kunyangwe mari yakawanda yekugadzirisa payuniti.
Mufananidzo 4. Mapakeji eBGA
Mamiriro Ekushandisa Akajairika
Madhomini ekushandisa eQFN
QFN inobudirira mumidziyo yemagetsi inotakurika, zvishandiso zveIoT, mamodules asina waya, uye maseketi ekutonga magetsi. Iine chimiro chisina kusimba uye ine mwero wekupisa inokodzera mashandisirwo ayo uko dzimba dzebhodhi dzakaganhurirwa asi huwandu hwemapini hunoramba huchigadziriswa. Masensa emotokari, madhiraivha eLED, uye macompact RF front-ends anowanzo shandisa QFN packaging kuti iite zvakanaka uye igone kugadzirwa zvakanaka.
Madhomini eBGA Application
BGA inonyanya kukosha mumakombiyuta ane simba repamusoro, zvivakwa zvekutaurirana, uye masisitimu epamusoro-soro akabatanidzwa. Mapurosesa, maFPGA , maASIC makuru, uye mapakeji ekurangarira ane simba repamusoro anovimba neBGA kuti awane huwandu hweI/O hunodiwa uye mashandiro emagetsi. Mashandisirwo anoda mapeya akawanda ane kumhanya kwepamusoro kana mabhazi akafara anotsigira BGA.
Mufananidzo 5. QFN Package
Pfupiso yeSarudzo yeBGA vs. QFN
Tafura inotevera inopfupisa zvinodiwa zvikuru pakuenzanisa BGA vs. QFN maererano nezvinodiwa zvekugadzira kwako:
| Zvikonzero | BGA | QFN |
|---|---|---|
| Kuwanda kwePin | Yakakwirira (mazana kusvika kuzviuru) | Yakaderera kusvika pakati nepakati (kazhinji <100) |
| Kuita kweMagetsi | Yakanakisa kune zviratidzo zvinomhanya zvakanyanya | Yakakwana pakumhanya kuri pakati nepakati |
| Thermal Management | Inoparadzirwa kuburikidza nemabhora e solder | Inoshanda zvakanaka kuburikidza nepadhi rinopisa rakavhurika |
| Assembly Complexity | Yakakwira; inoda kuongororwa kweX-ray | Yepasi; kuongorora kwemaziso kunoshanda |
| PCB Zvinodiwa | Mazhinji-layer, HDI, microvia | Mabhodhi emhando mbiri kusvika ina |
| Mari Yese | Kugadzirwa kwepamusoro uye kuungana | Mari yekugadzira yakaderera |
| Maitiro echimiro | Mapurosesa, maFPGA, ndangariro, telecom | IoT, maIC emagetsi, mamodule eRF, ma sensor |
mhedziso
Sarudzo yeBGA vs. QFN inoenderana nezvinodiwa zvepurojekiti pane kunaka kwepakeji. BGA inopa huwandu hweI/O husingaenzaniswi uye mashandiro emagetsi emadhizaini akaomarara, anomhanya zvakanyanya, ukuwo QFN ichipa kugadzirwa kwakanaka uye kushanda kwakakwana kwemashandisirwo akaomarara ari pakati nepakati.
Kusarudza mapakeji zvakanaka kunoda kunyatsoongorora zvinodiwa nepini, zvirambidzo zvekuchengetedza masaini, zvinodiwa pakupisa, kugona kugadzira, uye bhajeti shoma. Nekuenzanisa hunhu hwemapakeji nezvinangwa zvekugadzira, mainjiniya anogona kugadzirisa mashandiro echigadzirwa uye hupfumi hwechigadzirwa.
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Ngatimhanyei DFM/DFA ongororo yenyu todzokera kwamuri nereport. Unogona kurodha mafaera ako zvakachengeteka kuburikidza newebhusaiti yedu. Isu tinoda ruzivo rwunotevera kuti tikupe iwe quote:
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- Gerber, ODB++, kana .pcb, spec.
- BOM rondedzero kana iwe uchida kusangana
- uwandu
- Kuchinja nguva
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Kune masevhisi ePCBA, ndapota ipa BOM yako (Bhiri reZvinhu) uye chero mirairo yegungano. Isu tinopawo DFM/DFA ongororo yekukwidziridza zvigadziriso zvako zvekugadzira uye kusangana, kuve nechokwadi chekuita kwakatsetseka kwekugadzira.