Imwe, sumo

Nekubuda kwemahombekombe akakomberedzwa zvigadzirwa zvematunhu, kuiswa uye kuyedzwa kwe PCB yava kunyanya kukosha. Yese bvunzo yekudhindwa kwedunhu bhodhi ndiyo yechinyakare bvunzo tekinoroji yePCB indasitiri.

Yekutanga tekinoroji yemagetsi yekuyedza tekinoroji inogona kuteverwa kumashure kunopera kwema1970 uye kutanga kwema1980. Sezvo zvikamu panguva iyoyo zvese zvakagamuchirwa zvakajairika package (Pitch 100mil) uye PCB chete yaive neTT (kuburikidza-gomba tekinoroji) huwandu hwehuwandu, veEuropean neAmerican bvunzo muchina vagadziri vakagadzira yakajairwa grid bvunzo muchina. Chero bedzi izvo zvimisikidzo uye wiring paPCB zvakarongedzwa zvinoenderana neyakajairika daro, yega bvunzo poindi ichawira pane yakajairwa grid poindi, nekuti ese PCBS anogona kushandiswa panguva iyoyo, saka inonzi yepasirese bvunzo muchina.

, nekuda kwekuvandudzwa kwe semiconductor kurongedza tekinoroji zvinhu zvinotanga kuve nepakeji diki uye SMT (SMT) encapsulation, universal test standard density yakatanga kusashande, ipapo pakati – makumi mapfumbamwe – s, isu nevagadziri veEuropean vakaunzawo zvakapetwa density yekuyedza muchina, inosanganiswa nekushandiswa kweimwe simbi materu ekugadzira grid yekubatanidza muchina uye chigadziriso kutendeuka pcb bvunzo mapoinzi, Nekukura zvishoma nezvishoma kweiyo HDI yekugadzira maitiro, kuwanda kwakapetwa kuyedzwa kwepasirose hakugone kuzadzikisa zvido zvekuyedzwa, saka kutenderedza 2000, Iyo yeEuropean bvunzo muchina vagadziri vakaparura ina-peta density density gridhi yekuyedza muchina.

Chechipiri, iyo yakakosha tekinoroji yekuongorora kwakawanda

1. Kuchinja chinhu

Kusangana nezvinodiwa pakuyedza kweakawanda maHDI PCBS, nzvimbo yekuyedza inofanirwa kuve yakakura zvakakwana, kazhinji iine aya masize anotevera: 9.6 × 12.8 (inch), 16 × 12.8 (inch), 24 × 19.2 (inch), mune iyo mbiri yekuwandisa yakazara Grid, mapoinzi ebvunzo eaya matatu ari pamusoro akateedzana 49512, 81920, 184320, iyo nhamba yemagetsi zvinhu zvinosvika kumazana ezviuru, Kuchinja chinhu chinhu chepakati chekuona kudzikama kwemuyedzo, uye zvinodikanwa kuve neyakawandisa kumanikidza (& GT; 300V), kudonhedza kwakadzika uye zvimwe zvinhu, uye magetsi emagetsi senge kushomeka kukosha kunofanirwa kuve kwakaringana uye kusagadzikana, saka mhando iyi yezvinhu inofanirwa kuenda kuburikidza nekuomesa kuongororwa uye kuona, kazhinji ne transistors kana munda-mhedzisiro machubhu sekuchinja kwezvinhu.

Zvakanakira nekuipira kwekristaro triode:

Zvakanakira: yakaderera mutengo, yakasimba antistatic kuputsika kugona, kukwirira kugadzikana;

Zvakaipira: razvino dhiraivha, yakaoma dunhu, inoda kutsaura base yazvino (Ib) simba, yakakwira simba rekushandisa

Zvakanakira nekuipira kweFETS:

Zvakanakira: voltage inotyairwa, yakapfava dunhu, haina kukanganiswa neiyo base yazvino (Ib), yakaderera simba rekushandisa

Kukanganisa: kudhura, kupaza magetsi nyore, inoda kuwedzera matanho ekudzivirira emagetsi, kudzikama hakuna kukwirira, saka zvichawedzera mutengo wekuchengetedza.

2. Kuzvimiririra kwema grid poindi

Grid Yakazara

Yese grid ine yakazvimiririra yekuchinja chiuno, ndiko kuti, poindi yega yega inotora boka rekushandura zvinhu uye mitsara, iyo yese nzvimbo yekuyedza inogona kuve yakapetwa kana kuwanda kwetsono.

Goverana Grid

Nekuda kwenhamba yakakura yekuchinja zvinhu muGridhi izere uye kuomarara kwedunhu, zvinonetsa kuziva, saka vamwe vagadziri veyedzo vanoshandisa Grid yekugovana tekinoroji kuita mapoinzi akati wandei munzvimbo dzakasiyana Govanai boka rezvinhu zvinoshandura uye maseketi, kudzikamisa kuoma kwetambo uye nhamba yezvinhu zvekuchinja, zvinonzi Goverana Gridhi. Kumwe kwekukanganisa kukuru kwema grid akagovaniswa ndeekuti kana iwo mapoinzi munzvimbo agara zvizere, iwo mapoinzi ari munzvimbo yakagovaniswa haachakwanisizve kushandiswa, nekudaro kudzikamisa huremo hwenzvimbo yacho kuhuwandu humwe chete. Naizvozvo, kuchine hombodo inowanda muHDI kuyedza munzvimbo huru.

3. Kuumbwa kwezvinhu

Modular kuvaka

Zvese switch arrays, zvekutyaira zvikamu uye zvekudzora zvikamu zvakanyatso kubatanidzwa mune seti yekuchinja kadhi mamodule, iyo bvunzo nzvimbo inogona kusununguka kusunganidzwa nemo module, uye inogona kuchinjika, yakaderera kutadza chiyero, yakapusa kugadzirisa uye kusimudzira, asi yakakwira mutengo.

Ronda chimiro

Iyo mesh inoumbwa nekutenderera yechirimo tsono uye yekuparadzanisa switch kadhi, iyo ine hombe vhoriyamu uye isina nzvimbo yekukwiridzira, uye inonetsa kuchengetedza kana ikatadza.

4. Maumbirwo ekugadzirisa

Yakareba tsono mamiriro mamiriro

Kazhinji inoreva simbi yesimbi ndeye 3.75 ″ (95.25mm) yeiyo ficha ficha, mukana weiyo huru tsono nzvimbo yakatenuka, unit nzvimbo inogona kupararira tsono mapoinzi pane ipfupi tsono dhizaini inopfuura 20% ~ 30%. Asi masimba echimiro haana kunaka, fekitori yekugadzira inofanirwa kutarisisa kusimbisa.

Ipfupi tsono mamiriro mamiriro

Kazhinji zvinoreva simbi yesimbi iri 2.0 ″ (50.8mm) ficha mamiriro, mukana wesimba simba wakanaka, asi mutserendende wetsono idiki.

5. Inobatsira software (CAM)

Rutsigiro rwakakodzera rweCAM rwakakosha mukuyedzwa kwepamusoro-soro uye ine zvinhu zviviri zvakakosha:

Network ongororo uye bvunzo poindi chizvarwa;

Yechigarire mubatsiri kugadzirwa.

Nekuda kweyakagadziriswa kugadzirwa kwemaitiro mazhinji (senge fekitori dhizaini, kutsemuka kwegomba, dziviriro gomba kureba, chimiro chembiru, nezvimwewo) zvinokanganiswa zvakanyanya chiitiko chekuyedza, chikamu ichi chinofanirwa kupihwa nemugadziri ane hunyanzvi kudzidziswa, uye gara uchipfupisa ruzivo, kuti uite zvirinani zvirinani.

Matatu, kuwanda kwakapetana uye mana kuenzana kuenzanisa

Kutanga, tinogona kupedzisa huremu huviri hwehuwandu hwebhodhi haukwanisi kuyedza, iyo chitubu pamubhedha nekuti tsono lattice density uye kuwanda kwenzvimbo yekuyedza pane pcb test fixture yesimbi dzakasiyana inofanira kunge iine imwe nzvimbo yakatenuka, batidza gridhi raunogona ubve pa gridhi, iyo Angle simbi iri, zvisinei, inoganhurirwa neyakaumbwa, haigone kuve isingaperi, Kazhinji, tsono – simbi dzesimbi

Iwo materu (iyo yakatwasuka offset chinhambwe chesimbi tsono mune yechigadziko) inosvika 700mil, uye ina-density ndeye 400mil. Zvino, zvinokwanisika kuburitsa zvinoshamisa zvekutadza kudyara tsono, ingani tsono dzakadaro dzinogona kuverengerwa.

Uye zvakare, inogona pachena kuvandudza bvunzo mune bvunzo mhedzisiro yekunyepedzera chiyero uye kukanda, ina mativi eruziyero kuwanda pasikweya padiki mazana mana poindi, zvakapetwa kuwanda pamakumi maviri poindi, iwo iwo mapoinzi ari musimboti pazasi uye tsono nzvimbo inogona kudzikisa hafu, saka, kushandisa arambe achirema anogona kuderedza Angle simbi, yechigarire pasi ezvinhu zvakafanana kukwirira, Iwo iwo iwo mutserendende uye tsono ina arambe achirema test ndiro iri yakanyanya hafu yekaviri density, iyo Angle simbi tsono inogona kuita ine simba rakakura rekuyedza, iyo yakatetepa iri yakatwasuka daro yakaderedzwa, chitubu pini kumanikidza kuchaderera, uye chigadziro mune yega yega simbi munzira yakatwasuka yekurwisa inowedzera, tungamira kune yakaipa simbi usati wasangana nePAD. Uye zvakare, mukuita kumusoro uye pasi kuumbwa, kupera kwesimbi yakasendamira yesimbi mukubatana neiyo PCB ichave neyakaenzana slide pane iyo PAD pamusoro. Kana simba remwenje risina kunaka uye rakaremara, tsono yesimbi inozonamira mune yechigadziro. Panguva ino, kumanikidzwa kwetsono yesimbi paPAD kunenge kwakanyanya kudarika simba rakasimba retsono yemubhedha wetsono yetsono, inozokonzeresa mumatambudziko akakomba. Nesimbi-simbi simbi yakatenuka idiki pane zvakapetana zvakapetwa, pane nzvimbo yakawanda yekuisa makoramu ekutsigira pachigadziko, kuitira kuti ficha irambe yakasimba. Imwe mukana wekutsvedza kudiki ndeyekuti inoderedza saizi yegomba, nokudaro ichideredza mukana wekutyora gomba.

Kune BGA ine PAD spacing ye 20mil zvakaenzana zvakagoverwa, iyo yakakwira mutserendende wekuparadzira tsono iri 600mil yekaviri density test uye 400mil yechina density density. Huwandu hwemapoinzi anokwanisa kurongedzwa nekaviri density test ndeye 441, inenge 0.17inch2, uye 896, inenge 0.35inch2, zvichiteerana. Icho chaicho chakapetwa kaviri, kubva panzvimbo.