ATE PCB Kuedzwa uye Kusimbiswa: Hunokosha Mitemo uye Maitiro

ziviso

Otomatiki Mayedzo Equipment masisitimu anoenderana nekunyatso-engineered PCBs anoshanda seyakakosha interface pakati peyedzo chiridzwa nemidziyo iri pasi pekuyedzwa. Aya mabhodhi einterface anotakura basa rekushandura chiratidzo, kuenzanisa, uye kuchengetedza kuyerwa kwechiyero muzviuru zvemayedzo ekutenderera.

Kusiyana nemabhodhi akajairika anoshanda, maATE PCB anoshanda munzvimbo dzinoshandiswa mafrequency akawanda uko kunyangwe kuora kwechiratidzo kudiki kunogona kukonzera mhedzisiro yekuedza kwenhema uye zvikanganiso zvekugadzira zvinodhura. Asati apinda mukushandiswa kwekugadzira, yega yega ATE PCB inofanirwa kuongororwa zvakakwana uye kusimbiswa kuti ione kushanda kwemagetsi uye kuvimbika kwenguva refu.

Ichi chinyorwa chinoongorora nzira dzekutanga dzeATE PCB dzekuyedza, zviyero zveindasitiri zvinoshanda, uye kufambiswa kwebasa kunovimbisa kutendeseka kwebhodhi rekuita semiconductor bvunzo maapplication.

Chinangwa cheATE PCB Kuedzwa muKugadzira

Kuve nechokwadi cheSignal Path Kutendeseka

ATE PCB kuyedzwa kunotanga nekuona kutendeseka kwenzira dzese dzechiratidzo. Imwe neimwe nzira yekuyedza inofanirwa kuchengetedza yayakatsanangurwa maitiro emagetsi pasina kuunza zvikanganiso senge kuratidza, attenuation, kana kuyambuka-kutaura. Iyi nhanho inovimbisa kuti bhodhi rinotumira masaini ebvunzo akatendeka, kuchengetedza kuyerwa kwechiyero panguva yekumhanya-mhanya.

Verifying Contact Resistance uye Isolation Kugadzikana

Chimwe chinangwa chikuru ndechekusimbisa kuti ese magetsi ekubatanidza anoita akavimbika pasi pekudzokororwa kwemechani kushushikana. Simba rekudzivirira pasi uye nzira dzepasi dzinovimbisa kudzikama kwazvino kuyerera, nepo yakakwirira-impedance analog nzira dzinofanira kuramba dziri dzega dzemagetsi kudzivirira kuvuza kana kukanganisa. Miedzo iyi yakakosha kuchengetedza hunhu hwechiratidzo muzviuru zvezviuru zvebvunzo.

Kusimbisa Kuvimbika Pasi Pechokwadi Stress Mamiriro ezvinhu

Kuvimbika kusimbiswa kunofumura bhodhi kukurumidza kuchembera, tembiricha bhasikoro, uye kumwe kwezvakatipoteredza kushushikana bvunzo. Maitiro aya anobatsira kuona nzira dzinogona kutadza - dzakaita sedelamination, yekubatanidza kupfeka, kana kuparara kwezvinhu - mabhodhi asati aiswa mukugadzira.

Kugadzirisa Iyo Inoda Nzvimbo yeATE Systems

Mapuratifomu eATE kubva kuvagadziri vakaita seTeradyne neAdvantest anoshanda pasi pemamiriro akanyanya kudiwa: kukurumidza kuchinja kwetembiricha, kuenderera kwepamusoro-frequency switching, uye kazhinji mechani kuiswa kwemidziyo yekuyedza.

Nekuda kweizvozvo, ATE PCB kusimbiswa kunofanirwa kugarisa yakakwira yekupisa, yemagetsi, uye yemagetsi mitoro kupfuura yakajairwa magungano emagetsi. Yakakwira-kumhanya dhijitari chiteshi inoda kunyatso kudzora impedance uye kushoma siginecha skew, nepo nzira dzeanalog dzakanyatsoda kuzviparadzanisa nevamwe uye yekupedzisira-yakaderera kuvuza ikozvino.

Makiyi Emagetsi Maedzo eATE PCB

Kuenderera Kwayedza

Kuenderera mberi kuyedzwa kunosimbisa kubatana kwemagetsi kuzere munzira dzese dzechiratidzo uchizivisa kuvhurwa uye zvikabudura zvaizodzivirira kutapurirana chaiko. Otomatiki inobhururuka inoongorora masisitimu kana yakatsaurirwa bvunzo zvigadziriso zvine chitubu-akaremerwa mapini anobata imwe neimwe yedunhu node kuyera kuramba pakati penzvimbo dzekubatanidza. Iyi ATE PCB yekuyedza chikamu inobata hurema hwekugadzira senge isina kukwana kuburikidza neplating, yakatyoka maronda, uye solder mask intrusion iyo inogona kukanganisa kuyerera kwechiratidzo.

Leakage uye Isolation Test

Insulation kuramba kuyerwa kunoongorora kuparadzaniswa kwemagetsi pakati penzira dzechiratidzo dziri padyo uye pakati pemaseketi nendege dzepasi. High-voltage kuyedzwa kunoshandisa mutsauko unokwanisa kusvika pa500V kana 1000V kuratidza kuti kuvuza kwazvino kunoramba kuri pazasi pezvikumbaridzo, kazhinji isingasviki gumi mamicroamperes ezvekushandisa zvakajairika.

Kune chaiyo analog uye parametric kuyerwa chiteshi, kuramba kwekuzviparadzanisa nevamwe kunowanzo kufanira kudarika gumi gigaohms kudzivirira kuyerwa kwehuori. Ichi chikamu chekuyedza chinoratidza kunyanya kuomarara kune akasanganiswa-chiratidzo mabhodhi anotakura ese epamusoro-simba madhiraivha maseketi uye inocherekedza kuyerwa nzira.

Capacitance uye Impedance kuyerwa

Zvishandiso zvekuongorora ma "time domain reflectometry" uye "vector network analysis" zvinoyera "characteristic impedance" munzira dzechiratidzo dzakakosha kuti zvisimbise kutevedzera zvinodiwa pakugadzira. Zviratidzo zve "single-end" zvinotarisa 50-ohm impedance" uye "differential pairs" zvakatarwa pa90 kana 100 ohms zvinoda kuongororwa kuti zvive nechokwadi chekuti chiratidzo chakarurama pa "operating frequency".

Capacitance kuyerwa kunocherekedza kuwandisa kweparasitic coupling pakati pematanho uye kuyera kurodha mhedzisiro pane yakakwirira-kumhanya yedhijitari interfaces. Kutsauswa kubva kune yakananga impedance kukosha kunoratidza zvingangoitika zviratidzo zvechiratidzo matambudziko kana kusakwana bandwidth kune yakanangwa application.

Functional Validation Testing

Kuyedzwa kweSystem-level inoisa iyo yakapera PCB gungano mune ATE mainframe kuratidza mashandiro ekushanda pasi pemamiriro chaiwo ebvunzo. Ichi chikamu chekusimbisa chinoshandisa zvese zvinongedzo zvinongedzo, inosimbisa hukama hwenguva pakati pezviratidzo, uye inosimbisa kuti bhodhi rinopindura nemazvo kumirairo yezviridzwa. Inoshanda yekusimbisa inobata nyaya dzekubatanidza izvo chete magetsi ekuedza zvisingakwanisi kuona, senge matambudziko ekuenderana nesoftware kana kushomeka kwekutonga kwemafuta kunongoonekwa panguva yakawedzerwa kushanda.

ATE PCB Testing Standards uye Kutevedzera

IPC Mitemo

Iyo IPC-6012 qualification standard inogadza zvinodikanwa zvekushanda kwemabhodhi akadhindwa, kusanganisira:

• Conductor spacing uye clearance -Kupatsanurwa kwemagetsi kudiki pakati pemateki kunodzivirira kuparara kwevoltage uye inova nechokwadi chekuzviparadzanisa nevamwe.
• Gomba kunaka uye plating ukobvu -Kuburikidza ne-gomba barrel kutendeseka uye kukora kwemhangura maratidziro anovimbisa kuvimbika kuburikidza nekubatanidza.
• Surface finish zvinodiwa - Coating zvirevo zvinochengetedza solderability uye kudzivirira oxidation iyo inoderedza kubata kuramba.

IPC-9252 inotsanangura maitirwo emagetsi ekuyedza akananga mabhodhi asina vanhu, anovhara kuenderera mberi, kuongororwa kwekuzviparadzanisa nevamwe, uye yakakwira-voltage dielectric simba kuyerwa. IPC-TM-650 bvunzo nzira dzinopa akadzama maitiro ekuyera insulation kuramba, pamusoro pekudzivirira, uye dielectric inogara zvivakwa.

ATE-Yakajeka uye Mutengi Maitiro

Vagadziri vemidziyo mikuru yekuyedza vanochengetedza zvirevo zvemukati izvo zvinowedzera general indasitiri zviyero nezvinodiwa kugadzirisa yavo sisitimu yekuvaka. Aya mazinga anowanzo tsanangura zvinogamuchirika paramita zvinosanganisira:

• Signal skew kushivirira -Musiyano wenguva yakakura pakati pezviteshi, kazhinji pazasi pe50-100 picoseconds yekushanda kwakabatana.
• Kupinza kurasikirwa miganhu -Yakanyanya kusarudzika chiratidzo pama frequency ekushanda, anowanzo kutsanangurwa se -1dB kusvika -3dB zvichienderana ne frequency renji.
• Cross-talk margin zvinodiwa -Kuzviparadzanisa pakati pematanho ari padyo kudzivirira kukanganisa, kazhinji -40dB kana zvirinani pamafambisirwo ekushanda.

Vatengesi vemabhodhi ekubatanidza vanofanirwa kunzwisisa zvinodiwa nemugadziri uye kuisa maitiro ekuyedza anoenderana mumaitiro avo ekuyedza eATE PCB.

Kuvimbika Test Standards

Kuyedzwa kwekushushikana kwezvakatipoteredza kunotevera JEDEC JESD22 kana MIL-STD-883 nzira dzekuona kusimba kwemakanika uye kupisa. Tembiricha yekuchovha bhasikoro iri pakati -55°C uye +125°C inofumura kushaya simba kwemajoini ekutengesa uye kusapindirana kwezvinhu zvinogona kukonzera kutadza kwemunda.

Yekubatanidza yekuisa-yekubvisa bvunzo inosimbisa kuti mechaniki inomira inomira makumi mashanu kusvika ku500 ekukwirana macycle pasina kushatiswa, zvichienderana nezvinodiwa zvekushandisa. Humidity exposure test pa 85°C uye 85% humidity inoenderana inosimbisa hunyoro hwekuzvidzivirira kwezvinhu uye machira.

Inoshanda Kusimbisa Kufambiswa Kwekushanda kweATE PCB Kuedzwa

Kusimbiswa kwekuita kweATE PCB kunotevera kutevedzana kwakagadzirirwa kusimbisa kuvimbika kwemagetsi, kuvimbika kwemuchina, uye kugadzikana kwenguva refu kusati kwaiswa mumasisitimu ebvunzo:

1. Bare board magetsi ekuongorora -Inosimbisa kuenderera kwedunhu uye kuzviparadzanisa pamberi pegungano, kuve nechokwadi kuti hapana kuvhurika kana zvikabudura zviripo muPCB yakagadzirwa. Kuona nyaya idzi nekukasira kunoderedza mutengo wekugadzirisa zvakare uye kunodzivirira kukanganisa kwakadzikama mumatanho anotevera.
2. Optical uye microscopic kuongorora -Otomatiki optical inspection (AOI) uye microscopic ongororo inoona kuremara kwepamusoro senge makwara, kusarongeka, kana kusvibiswa kwekunze. Mibairo inofananidzwa ne IPC-A-610 maitiro ekuita kuti aone kugadzirwa kwemhando.
3. X-ray kuongororwa kwemasolder joints -Mushure mekuiswa kwechikamu uye kuyerera, X-ray imaging inosimbisa solder kubatana kutendeseka kweBGAs, QFNs, uye mamwe akavanzika anobatana, anozivisa voids kana bhiriji risingaonekwe kune optical ongororo.
4. Yekutanga simba-up verification - Yekutanga nhanho ine simba inotarisa njanji yemagetsi, dhizaini yazvino, uye kugadzikana kwemugadziri usati waisa masaini anoshanda ebvunzo. Iyi nhanho inodzivirira kuwandisa kwechikamu nekuda kwekukanganisa kwemagetsi kana mambure mapfupi.
5. Inowedzera subsystem kusimbiswa -Yese yedunhu block - senge nzira yekubatanidza, kutonga mantiki, uye kuyerwa nzira - inosimbiswa yega. Anoshanda mavector anoiswa kusimbisa chiratidzo chenguva, impedance yekufananidza, uye kugadzikana kwekutaurirana isati yazara system kushanda.
6. Kuongororwa kwekuvimbika kwezvakatipoteredza -Mabhodhi akaunganidzwa akazara anomhanyisa mafambiro ekushushikana anosanganisira tembiricha kubhasikoro, kuvhunduka kwekushisa, uye vibration bvunzo. Aya maitiro anoratidza maitiro ekutadza kwekutanga senge solder kuneta, delamination, kana kuparara kwezvinhu.
7. Yekupedzisira yemhando yekusimbisa bvunzo -Post-environmental magetsi retesting inosimbisa kuti maitiro ose ekushanda anoramba ari mukati mekutsanangurwa. Maitiro acho anopera nezvinyorwa zveyedzo data uye traceability marekodhi kuti ive nechokwadi chekuteedzera zvese IPC uye nevatengi-chaiwo zviyero.

Pamwe chete, aya matanho ekusimbisa anosimbisa kuvimba kwakazara mumagetsi uye mekiniki kutendeseka kweATE PCBs isati yabatanidzwa mumasisitimu ebvunzo. Chikamu chega chega chinopindirana neyakatsanangurwa indasitiri uye zviyero zvevatengi, zvichigadzira hwaro hwekuteedzera kwakazara kusimbiswa muchikamu chinotevera chekufanirwa.

Zvinyorwa uye Traceability muATE PCB Kuedzwa

Yese ATE PCB gungano inotakura yakazara bvunzo zvinyorwa zvinorekodha zviyero zvekuyera, inoratidza chero zviito zvekugadzirisa, uye inonyora nhoroondo yekuratidzwa kwezvakatipoteredza. Serial nhamba yekutevera inogonesa kuwirirana pakati pekuita kwemunda uye kugadzira bvunzo mhinduro, inotsigira inoenderera mberi yekuvandudza matanho uye kutadza kuongororwa kuongororwa.

Yakakwirira-yakavimbika mashandisirwo munzvimbo dze semiconductor bvunzo dzinowanzoda akazara genealogy rekodhi anosanganisira:

• Material traceability -Zvinyorwa zvinobatanidza zvigadzirwa kune zvevapi zvitupa uye mijenya makodhi.
• Process parameter zvinyorwa -Nguva-tembiricha maprofiles ekutengesa, kurapa kutenderera kwejasi, uye kudzvanywa zvigadziriso zvelamination.
• Yedza kuyerwa data -Kuverengera kwega kwega kwekuenderera mberi, kuzviparadzanisa nevamwe, impedance, uye mashandiro ekuita paramita.
• Inspection results -Kuonekwa kwekuongorora zvakawanikwa, mifananidzo yeX-ray, uye data yekuongorora nesarudzo yekubvuma-kurambwa.

Yedza data manejimendi masisitimu chengetedza kuyerwa kwemhedzisiro uye chengetedza manhamba maitiro ekudzora machati anotarisisa maitiro ekugadzira. Kuenzanisa otomatiki kunopesana nezvinotemerwa zvinomisa mireza miyero yemiganhu isati yatanga kuita matambudziko egoho.

mhedziso

Yakazara yekuyedza uye yekusimbisa mapuroteni anovimbisa kuti ATE PCBs inosangana nezvinodiwa zvekuita zvema semiconductor bvunzo maapplication. Kubva pakatanga kuenderera mberi nekuongororwa kuburikidza nekuyedza kushushikana kwezvakatipoteredza, yega yega nhanho yekusimbisa inopa yakakosha data nezve bhodhi mhando uye kuvimbika. Kuomerera kune yakamiswa IPC mazinga akasanganiswa neanogadzira-zvakananga zvinodiwa zvinogadzira hwaro hwakasimba hwemabhodhi ebvunzo anokodzera.

Highleap Electronics inopa mhinduro dzakakwana dzekugadzira nekuyedza dzeATE PCB dzine hunyanzvi hwakakwana hunosanganisira:

• Magetsi ekuongorora masevhisi -Kuenderera mberi, kuzviparadzanisa nevamwe, uye impedance kuyedza uchishandisa yepamusoro otomatiki michina kuve nechokwadi chekutendeka kwechiratidzo.
• Environmental stress test -Tembiricha yebhasikoro, kuvhunduka kwemafuta, uye kuratidzwa kwehunyoro kunotevera JEDEC uye MIL-STD protocol.
• Sistimu-nhanho inoshanda yekusimbisa -Kusanganisa kuyedzwa nemapuratifomu makuru eATE kuona mashandiro ekuita.
• Full traceability zvinyorwa -Serial nhamba yekutevera uye yakazara bvunzo marekodhi inosangana nezvinodiwa zvemhando yevatengi.

Bata timu yedu yeinjiniya kuti mukurukure zvinodiwa pakusimbiswa kwepurojekiti yenyu inotevera yeATE interface board kana kuronga kuyedzwa kwemuenzaniso webhodhi uye kupihwa zvitupa.