1. Kuedzwa kwemagetsi

Mukugadzira nzira ye Pcb bhodhi, hazvidzivisiki kuti kukanganisa kwemagetsi zvakadai semafupi mafupi, mavhiriki akazaruka uye kubuda nekuda kwekunze kwekunze kuchave kwakakonzerwa. Pamusoro pezvo, PCB inoenderera mberi nekushanduka ichienda kune yakakwira density, yakanaka pitch uye akawanda mazinga. Kana mabhodhi akaremara akasabviswa munguva Kuongorora kunze, uye nekuibvumira kuyerera ichipinda muhurongwa, zvinozokonzeresa kutambisa mari yakawanda. Naizvozvo, pamusoro pekuvandudzwa kwekutonga kwemaitiro, kuvandudzwa kwetekinoroji yekuyedza kunogona kupawo vanogadzira PCB mhinduro dzekudzikisa chiyero chekuramba uye kugadzirisa goho rechigadzirwa.

Mukugadzirwa kwezvigadzirwa zvemagetsi, kurasikirwa kwemutengo kunokonzerwa nekuremara kune madhigirii akasiyana padanho rega rega. Iyo yekutanga kuona ndeye, yakaderera mutengo wekugadzirisa. “The Rule of 10’s” inowanzo shandiswa kuongorora mutengo wekugadzirisa kana maPCB akaonekwa asina kukanganisa pamatanho akasiyana ekugadzira. Semuenzaniso, mushure mekunge bhodhi risina chinhu ragadzirwa, kana dunhu rakazaruka mubhodhi rinogona kuonekwa munguva chaiyo, kazhinji rinongoda kugadzirisa mutsara kuti uvandudze kukanganisa, kana kuti pane imwe bhodhi isina chinhu inorasika; asi kana dunhu rakazaruka risingaonekwi, kumirira kuti bhodhi ritumire Kana muunganidzi wepasi achipedza kuiswa kwezvikamu, tambo yevira uye IR inogadziriswa, asi panguva ino inoonekwa kuti dunhu rakabviswa. Iyo general downstream assembler inokumbira iyo isina chinhu bhodhi inogadzira kambani kubhadhara mutengo wezvikamu uye basa rinorema. , Inspection fees, etc. Kana zvakatonyanya kusuruvarisa, bhodhi rakaremara harina kuwanikwa mukuedzwa kweassembler, uye inopinda muhurongwa hwose hwakapedzwa chigadzirwa, zvakadai semakombiyuta, mbozhanhare, zvikamu zvemotokari, nezvimwewo. nguva, kurasikirwa kwakawanikwa nemuedzo kuchava bhodhi risina chinhu munguva. Kazana, kane chiuru, kana kutopfuura. Naizvozvo, kune iyo PCB indasitiri, yemagetsi kuyedzwa ndeyekutanga kuona yedunhu rinoshanda hurema.

Vatambi vepasi vanowanzoda kuti vagadziri vePCB vaite 100% yemagetsi ekuedza, uye naizvozvo vachasvika pakubvumirana nevagadziri vePCB pamamiriro ekuedzwa uye nzira dzekuedza. Naizvozvo, mapato ese ari maviri anotanga anyatso tsanangura zvinotevera zvinhu:

1. Kwayedza data sosi uye fomati

2. Mamiriro ekuedza, akadai semagetsi, ikozvino, kuvhara uye kubatana

3. Equipment kugadzira nzira uye kusarudzwa

4. Test chitsauko

5. Kugadzirisa zvinotsanangurwa

MuPCB yekugadzira maitiro, pane matanho matatu anofanirwa kuyedzwa:

1. Mushure memukati wemukati wakaiswa

2. Mushure mokunge dunhu rekunze rakaiswa

3. Yakapedzwa chigadzirwa

Muchikamu chega chega, panowanzova ne2 kusvika ku3 nguva dze100% yekuedza, uye mapuranga akaremara anozoongororwa kunze uye ogadziriswazve. Naizvozvo, chiteshi chekuyedza zvakare ndiyo yakanakisa sosi yekuunganidza data yekuongorora matambudziko ekuita. Kuburikidza nemhedzisiro yehuwandu, iyo muzana yemaseketi akavhurika, mapfupi maseketi uye mamwe matambudziko ekudzivirira anogona kuwanikwa. Mushure mekushanda kwakasimba, kuongorora kuchaitwa. Mushure mekunge data yarongerwa, nzira yekudzora yemhando inogona kushandiswa kutsvaga Gadzirisa chikonzero chedambudziko.

2. Magetsi kuyerwa nzira uye midziyo

Nzira dzekuyedza dzemagetsi dzinosanganisira: Yakatsaurirwa, Universal Grid, Flying Probe, E-Beam, Conductive jira (Glue), Capacity Uye brashi bvunzo (ATG-SCANMAN), ine matatu anonyanya kushandiswa midziyo, anoti yakakosha bvunzo muchina, general bvunzo. muchina uye inobhururuka probe bvunzo muchina. Kuti unzwisise zviri nani mashandiro emidziyo yakasiyana-siyana, zvinotevera zvinofananidza hunhu hwematatu maturusi makuru.

1. Muedzo wakatsaurirwa

Muedzo wakakosha muyedzo wakakosha kunyanya nekuti chigadziriso chinoshandiswa (Fixture, senge ndiro yetsono yekuyedza magetsi ebhodhi redunhu) inokodzera chete nhamba yechinhu chimwe chete, uye mabhodhi ehuwandu hwezvinhu zvakasiyana haagone kuyedzwa. Uye haigoni kushandiswazve. Panyaya yemapoinzi ebvunzo, iyo pani imwe chete inogona kuyedzwa mukati megumi, mazana maviri nemakumi mana emapoinzi uye maviri-mativi 10,240 mapoinzi ega ega. Panyaya yekuyera density, nekuda kwehupamhi hwemusoro weprobe, inonyanya kukodzera bhodhi ine pitch kana kupfuura.

2. Universal Grid bvunzo

Iyo musimboti weiyo general-chinangwa bvunzo ndeyekuti marongerwo ePCB wedunhu akagadzirwa zvinoenderana negridi. Kazhinji, iyo inonzi inonzi circuit density inoreva kureba kwegridhi, iyo inoratidzirwa maererano nepitch (dzimwe nguva inogonawo kuratidzwa nehole density) ), uye muedzo mukuru unobva pane iyi nheyo. Zvinoenderana nenzvimbo yegomba, G10 base material inoshandiswa semask. Chete probe panzvimbo yegomba inogona kupfuura nepakati pemasikisi yekuongorora magetsi. Naizvozvo, kugadzirwa kwechigadziriso kuri nyore uye nekukurumidza, uye probe Iyo tsono inogona kushandiswa zvakare. General-chinangwa bvunzo ine yakajairwa Grid yakagadzika hombe tsono ndiro ine mapoinzi ekuyeresa akawanda kwazvo. Mahwendefa etsono eiyo probe inofambiswa inogona kugadzirwa zvinoenderana nenhamba dzezvinhu zvakasiyana. Kana kugadzirwa kwemazhinji, ndiro inofambiswa yetsono inogona kuchinjirwa kuita kugadzirwa kwemazhinji kune akasiyana ezvinyorwa. test.

Pamusoro pezvo, kuitira kuti uve nechokwadi chekutsiga kwePCB board redunhu system, zvinodikanwa kushandisa yakakwira-voltage (senge 250V) yakawanda-point general-chinangwa chemagetsi test master muchina kuita Open/Short magetsi bvunzo pa. bhodhi rine ndiro yetsono ine chaiyo yekubata. Rudzi urwu rwemuchina wekuyedza wepasirese unonzi “Automatic Testing Equipment” (ATE, Automatic Testing Equipment).

Iwo general-chinangwa mapoinzi ebvunzo anowanzo kupfuura zviuru gumi mapoinzi, uye bvunzo ine bvunzo density kana inonzi on-grid bvunzo. Kana ikaiswa kune yakakwira-density board, iri kunze kwe-grid dhizaini nekuda kwekunyanya kuvharika nzvimbo, saka ndeye off-grid Kuti iedzwe, chigadziriso chinofanira kunge chakanyatsogadzirwa, uye kuyerwa kwehuwandu hwechinangwa-chakawanda. kuyedza kunowanzo kukwira kuQFP.

3. Kubhururuka ongororo bvunzo

Nheyo yekubhururuka probe bvunzo iri nyore kwazvo. Inongoda maprobes maviri ekufambisa x, y, z kuti uedze magumo maviri edunhu rega rega rimwe nerimwe, saka hapana chikonzero chekugadzira mamwe majig anodhura. Asi nekuti iri bvunzo yekupedzisira, iyo yekumhanyisa bvunzo inononoka, inosvika gumi-10 mapoinzi/sec, saka inonyanya kukodzera sampuli uye diki-diki kugadzirwa; maererano nehuwandu hwekuyedza, bvunzo yekubhururuka inogona kuiswa kune yakanyanya-density mabhodhi.