Nyob rau hauv ib lub koob yees duab module, cov duab sensor yog undisputed "lub hlwb." Txawm li cas los xij, ob peb tus paub tias nws daim ntawv ntim khoom -CSP, LGA, lossis BGA- tsis yog kev xaiv vaj tsev xwb. Nws fundamentally txhais cov moduleskev txwv kev ua haujlwm, kev cia siab, thiab kev thov kom haum. Nkag siab txog peb qhov no yog qhov tseem ceeb rau kev tsim cov khoom lag luam zoo thiab kev txiav txim siab ntawm cov saw hlau.
I. Cov yam ntxwv tseem ceeb thiab qhov sib txawv ntawm Peb Lub Tshuab Ntim Tshuab
1. CSP (Chip Scale Package)CSP yog lub tshuab ntim khoom tsis muaj txhuas tuag, nrog lub pob loj yuav luag tib yam li cov nti nws tus kheej (qhov piv ntawm pob cheeb tsam mus rau thaj tsam nti feem ntau Tsawg dua lossis sib npaug rau 1.2: 1). Nws cov tub ntxhais yog txuas ncaj qha rau cov ntaub qhwv ntawm cov nti saum npoo mus rau PCB substrate yam tsis muaj cov hlau lead ntxiv lossis cov khoom siv. Nws qhov txiaj ntsig zoo tshaj plaws yog qhov miniaturization loj, uas tuaj yeem txo qhov ntim ntawm lub koob yees duab modules, ua rau nws haum rau qhov loj me -sensitive scenarios xws li xov tooj ntawm tes pem hauv ntej lub koob yees duab, micro endoscopes, thiab drone aerial modules. Qhov zoo: Qhov me me thiab lub teeb yuag; Tsawg pob kab mob tsis zoo, cov teeb liab kis tau tsawg tsawg, ua rau kev txhim kho sensor imaging ceev; mature pawg ntau lawm txheej txheem nrog controllable nqi. Disadvantages: Tsis zoo cua sov dissipation kev ua tau zoo; siab- lub zog sensors (xws li siab -pixel industrial sensors) yog qhov ua rau muaj cua sov, cuam tshuam rau cov duab ruaj khov; tsis tshua muaj zog txhua yam, tsis muaj kev poob siab thiab noo noo tsis kam, yuav tsum tau ntim khoom ntxiv ntawm lub module; tsis tshua muaj siab txij nkawm nyuaj, yuav luag tsis yog- kho, yuav tsum tau tswj cov khoom lag luam nruj heev.
2. LGA (Land Grid Array)LGA siv cov ntaub qhwv hlau nyob hauv qab es tsis txhob siv cov pins ib txwm siv, ua tiav kev sib txuas hluav taws xob los ntawm kev sib txuas ntawm cov ntaub qhwv thiab PCB substrate. Cov ntaub qhwv yog feem ntau cov qauv tsim, tsis muaj cov khoom siv los yog cov hlau lead. Piv nrog rau CSP, LGA ua tiav qhov sib npaug ntawm qhov loj thiab kev ntseeg tau, ua rau nws yog qhov kev xaiv tseem ceeb rau nruab nrab - ntau lub koob yees duab modules. Qhov zoo: Cov cua kub zoo dua li CSP; thaj tsam loj ntawm cov ntaub ntawv planar kom ntseeg tau tias muaj kev kub ntxhov ntau dua; siab soldering tawm los, intuitive ncoo soj ntsuam, yooj yim ntau lawm zoo tswj; qee yam kev kho kom zoo- soldering faults tuaj yeem kho los ntawm reflow soldering; muaj zog mechanical stability, zoo dua poob siab thiab cuam tshuam tsis kam tshaj CSP. Qhov tsis zoo: Cov pob loj me me dua li CSP, tsis tuaj yeem ua tau raws li qhov xav tau loj me me; siab yuav tsum tau rau PCB substrate flatness thiab soldering txheej txheem tsis, txwv tsis pub nws yuav txias soldering thiab tsis zoo tiv tauj; parasitic parameters me ntsis siab dua CSP, nrog me ntsis cuam tshuam rau siab -frequency signal kis.
3. BGA (Ball Grid Array)BGA siv ib qho array ntawm cov khoom siv hauv qab ua qhov nruab nrab kev sib txuas. Cov khoom siv solder yog soldered nruab nrab ntawm cov chip pads thiab PCB substrate, tsim kev ruaj ntseg hluav taws xob thiab cov khoom siv sib txuas. Nws cov qauv tsim ua rau nws ua tau zoo tshaj plaws hauv kev ntseeg tau thiab cov cua kub dissipation, ua rau nws yog thawj qhov kev xaiv rau siab - kawg, siab -load lub koob yees duab modules. Qhov zoo: Cov cua kub zoo heev thiab kev ua haujlwm hluav taws xob zoo; kev sib cuag ntawm cov pob qij txha tso cai rau kev kub ceev ceev rau PCB, yoog mus rau siab -pixel, siab -ncej- tus nqi sensors (xws li 8K automotive lub koob yees duab thiab kev lag luam siab - precision tshuaj xyuas modules); siab txhua yam muaj zog- cov pob solder muaj qee yam tsis zoo, nrog rau kev poob siab thiab kev co, muaj peev xwm tiv taus qhov chaw nyuaj xws li tsheb thiab chaw tsim khoom; low parasitic capacitance thiab inductance, zoo teeb liab kev ncaj ncees, txhawb siab - ceev cov ntaub ntawv kis tau tus mob, sib xws nrog siab - ceev raws tu qauv zoo li MIPI CSI-2. Qhov tsis zoo: Cov pob loj tshaj plaws, tsis haum rau cov khoom siv me me; tus nqi siab dua CSP thiab LGA, nrog cov txheej txheem solder pob thiab cov txheej txheem soldering; kev saib xyuas nyuaj, xav tau cov cuab yeej tshwj xeeb (xws li cov phom cua kub thiab cov chaw ua haujlwm rov ua haujlwm), thiab cov nti yooj yim puas; solder npas yuav oxidize los yog poob, yuav tsum nruj me ntsis cia thiab soldering ib puag ncig.
II. Scenario Logic rau Lub Koob Yees Duab Module Adaptation
Lub ntsiab lus ntawm qhov sib txawv ntawm peb lub ntim thev naus laus zis yog kev lag luam -tawm ntawm "size-kev ntseeg siab- nqi". Kev hloov kho tshwj xeeb yuav tsum ua kom haum raws li qhov xav tau ntawm lub koob yees duab module: - Cov neeg siv khoom- qib micro modules (lub xov tooj ntawm tes pem hauv ntej / nraub qaum lub koob yees duab, lub koob yees duab hnav tau yooj yim): Ua ntej CSP kom ua tiav qhov loj me rau qhov nyias thiab lub teeb xav tau ntawm cov khoom kawg, thaum tswj cov nqi tsim khoom loj . - Mid - lub koob yees duab kev lag luam, surveillance ib puag ncig- saib lub koob yees duab): Ua ntej LGA kom sib npaug ntawm qhov loj me, kev ntseeg tau, thiab kev kho kom zoo, txo cov kev pheej hmoo ntau lawm. - Siab-end industrial/automotive/medical modules (industrial visions inspection, ADAS autonomous driving cameras, high{11}}definition kho mob endoscopes GA) kom ruaj khov rau ib puag ncig ua ntej dissipation, tiv thaiv- muaj peev xwm cuam tshuam, thiab siab - kis tau tus mob ceev.
III. Cov ntsiab lus xaiv
CSP ua tau zoo hauv kev ua haujlwm me me, hloov mus rau cov neeg siv khoom- qib nyias thiab lub teeb pom kev; LGA tau txais txiaj ntsig zoo hauv kev sib npaug, suav nrog cov ntsiab lus tseem ceeb hauv nruab nrab-kev xav tau kev lag luam ntau; BGA yog qhov zoo tshaj plaws hauv kev ntseeg siab thiab kev ua haujlwm siab, txhawb siab -kawg cov xwm txheej nyuaj. Thaum xaiv, cov lag luam txawv teb chaws yuav tsum xub qhia meej cov ntsiab lus tseem ceeb: xaiv CSP rau qhov loj me me; xaiv LGA rau kev ua haujlwm sib luag thiab tswj tau ntau lawm; ua ntej BGA rau siab load thiab complex ib puag ncig stability. Lub caij no, kev txiav txim siab dav dav yuav tsum tau ua raws li kev siv lub zog siv hluav taws xob, cov qauv tsim khoom loj, thiab cov nqi siv nyiaj kom tsis txhob muaj kev ua haujlwm pov tseg lossis tsis txaus qhov kev hloov pauv vim yog ib qho - xaiv qhov loj me.
