Koj siv ntau txhiab teev thiab ntau lab nyiaj daus las los tsim cov qauv silicon flawless, tab sis yog tias lub tsev nyob tsis ua haujlwm, tag nrho cov khoom tsis muaj nqis. Qhov teeb meem ntawm lub hlwb ua haujlwm hauv hluav taws xob thiab ib daim ntawm silicon scrapped yog lub encapsulation. Cov lus qhia dav dav no rhuav tshem lub ntiaj teb nyuaj ntawm kev ntim khoom siv hluav taws xob niaj hnub. Nws yog ib qho tsim nyog nyeem vim tias nkag siab txog cov ntaub ntawv tshwj xeeb, thermal dynamics, thiab mechanical stresses koom nrog kev tiv thaiv silicon yuav ua rau koj cov txiaj ntsig ntau lawm. Txawm hais tias koj tab tom tswj hwm cov kab sib sau ua ke los yog muab cov cuab yeej precision los tshuab pwm lawv tus kheej, kev paub txog cov ntsiab lus tseem ceeb no yuav txuag koj lub sijhawm, txo cov nqi seem, thiab ua rau koj muaj kev sib tw loj heev hauv kev ua lag luam.
Lub pob ic yog dab tsi thiab vim li cas thiaj li encapsulation tseem ceeb hauv kev lag luam semiconductor?
Hauv nws qhov tseem ceeb, ib ic pob yog cov cuab yeej tiv thaiv uas nyob ib puag ncig ib qho tsis yooj yim ntawm silicon. Yog tsis muaj qhov tseem ceeb tiv thaiv txheej, liab qab nti yuav tam sim succumb rau ib puag ncig kev puas tsuaj xws li ya raws, plua plav, thiab kev cuam tshuam lub cev. Lub hom phiaj tseem ceeb ntawm encapsulation yog kom kaw tag nrho cov khoom tsim sab hauv los ntawm lub ntiaj teb sab nraud. Qhov no tau lees tias qhov kev tivthaiv yuav ua haujlwm tau zoo rau ntau xyoo, txawm tias nws tau nruab rau hauv chav tswj huab cua lossis hauv qab lub hood ntawm lub tsheb vibrating.
Hauv ntiaj teb no Kev lag luam semiconductor, lub cev vaj tse kuj ua haujlwm tseem ceeb heev. Nws hloov cov ntsiab lus sib txuas ntawm microscopic ntawm silicon rau hauv qhov loj dua, tus qauv tsim hneev taw uas tuaj yeem ua tau soldered mus rau ib qho pcb ua (luam tawm Circuit Board). Qhov no txhais tau tias tus xaiv pob hom ncaj qha dictates li cas cov khoom integrates rau hauv cov khoom kawg. Ib lub tsev tsis zoo tuaj yeem ua rau muaj cua sov, teeb liab degradation, lossis kev ua haujlwm tsis zoo thaum lub sijhawm ua haujlwm.
Cov kev tsim technology qab txheej txheem no yog staggering. Peb tab tom noj ib yam dab tsi tsis yooj yim li lub qe thiab qhwv nws hauv cov khoom siv hluavtaws pob zeb. Niaj hnub no, feem ntau cov khoom uas koj pom ntawm lub rooj tsavxwm yog nto mount khoom siv. Seb puas kam nrog ib qho yooj yim smd ua tivthaiv los yog ib tug complex multi-core processor, tib lub hauv paus ntsiab lus siv: lub plhaub sab nrauv yuav tsum zoo meej kiag li.
Yuav ua li cas ntim cov txheej txheem tiv thaiv cov ilv nti ntawm kev puas tsuaj?
Txoj kev taug kev los ntawm ib qho liab qab ntawm silicon mus rau ib qho khoom tiav, mountable khoom yog qhov nyuaj heev. Cov niaj hnub kev tsim khoom ntiav ntau hom kev txawj ntse kom ntseeg tau tias muaj tseeb. Ib qho tseem ceeb tshaj plaws ntim cov txheej txheem koom nrog tsim cov kev sib txuas hluav taws xob ua ntej qhov kev sib khi zaum kawg tshwm sim. Piv txwv li, nyob rau hauv advanced flip-chip sib dhos, lub active cheeb tsam ntawm silicon yog flipped upside down. Nws txuas ncaj qha mus rau lub hauv paus qauv siv cov hlau me me pob.
Qhov no tshwj xeeb rov chip mus kom ze drastic txo qhov deb ntawm hluav taws xob teeb liab yuav tsum tau mus. Nws muab hluav taws xob zoo heev. Txawm li cas los xij, cov microscopic no solder pob yuav tsum muaj kev tiv thaiv loj heev. Ib zaug lub kev sib txuas tau ua tiav tiav, tag nrho lub rooj sib txoos yuav tsum tau muab xauv kom ruaj ntseg hauv qhov chaw. Cov khoom tiv thaiv ntws los ntawm cov pob qij txha me me no, muab kev txhawb nqa cov neeg kho tshuab thiab tiv thaiv lawv los ntawm kev tawg thaum muaj kev ntxhov siab.
Ua kom tiav qib no ntawm precision yuav tsum tau incredibly raug lub cev tooling. Cov pwm hlau uas siv los ua lub plhaub tiv thaiv zaum kawg yuav tsum tau ua kom tiav qhov kev ua siab ntev. Thaum tsim cov pwm steel hnyav no, cov neeg tsim khoom vam khom rau kev ua haujlwm siabCarbide Drills kom huv si txiav cov cua txias thiab cov chaw nres nkoj injector yam tsis tso cov burrs uas tuaj yeem cuam tshuam cov dej ntws ntawm cov yas tiv thaiv.
Dab tsi yog epoxy pwm compound thiab vim li cas nws thiaj siv tau?
Thaum peb tham txog lub cev yas dub ntawm tus qauv microchip, peb yuav luag ib txwm hais txog ib qho epoxy pwm. Cov khoom no yog ib qho tshwj xeeb ntsuas kub yas. Tsis zoo li cov yas niaj hnub uas tuaj yeem yaj thiab rov ua dua, lub thermoset tau txais cov tshuaj tiv thaiv tsis tau rov qab thaum cua sov. Thaum nws kho, nws tsim ib qho nyuaj heev, ruaj khov, thiab ruaj khov plhaub.
Ib epoxy pwm compound (feem ntau hu ua ua emc) yog qhov tseem ceeb ntawm cov khoom siv tshuaj lom neeg hnyav heev. Nws muaj lub hauv paus epoxy resin, hardening agents, thiab loj npaum li cas ntawm silica muab tub lim. Cov silica yog qhov tseem ceeb vim tias nws txo qis cov khoom siv nthuav tawm thaum raug tshav kub. Cov no emcs ua sawv cev rau lub cev pob txha ntawm niaj hnub no yas tiv thaiv vaj tse. Cov cov ntaub ntawv siv yuav tsum muaj zoo heev dielectric cov khoom, xyuas kom lawv ua raws li zoo meej hluav taws xob insulators los tiv thaiv sab hauv luv circuits.
“Qhov sib xws ntawm koj molding cov ntaub ntawv ncaj qha dictates qhov sib xws ntawm koj cov khoom kawg. Nyob rau hauv high-stakes manufacturing, kwv yees yog profitability. "
Yuav ua li cas molding compound interface nrog substrate thiab interconnect?
Thaum lub sijhawm txhaj tshuaj tiag tiag, kub, khov molding compound raug yuam mus rau hauv cov kab noj hniav steel nyob rau hauv lub siab loj heev. Nws yuav tsum ntws smoothly hla lub ilv silicon thiab lub hauv paus substrate. Qhov no yog txheej txheem nruj. Yog tias cov kua dej tsis zoo tswj tsis tau zoo, cov kua rushing tuaj yeem txhais tau cheb cov xov hlau me me uas ua rau lub cev kub. kev sib txuas.
Tsis tas li ntawd, cov kua dej yuav tsum tau sau tag nrho txhua qhov microscopic kab noj hniav hauv pwm. Tej huab cua uas raug kaw ua rau muaj qhov khoob. Ib qho tsis muaj dab tsi yog suav tias yog kev puas tsuaj qhov tsis xws luag. Yog tias cov dej noo nkag mus rau hauv qhov tsis muaj dab tsi, qhov kub ntawm cov txheej txheem reflow soldering qhov cub yuav hloov cov dej noo mus rau hauv chav, cia tshuab cov khoom sib nrug ntawm sab hauv (lub npe hu ua "popcorn effect").
Txhawm rau tiv thaiv qhov no, lub interface nruab nrab ntawm cov yas tiv thaiv thiab cov hlau lead thav duab yuav tsum muaj tshuaj lom neeg. Tsim nyog substrate tsim plays lub luag haujlwm loj ntawm no. Cov kws tshaj lij feem ntau tsim kev cuam tshuam lub cev ntas lossis siv cov tshuaj tshwj xeeb adhesion txhawb nqa kom ntseeg tau tias cov yas tuav cov hlau tsis zoo.
Lub wafer ua lub luag haujlwm dab tsi ua ntej singulation?
Keeb kwm, silicon tau muab tsuav rau hauv ib daim ntawv ua ntej muab ntim. Txawm li cas los xij, txhawm rau txhim kho efficiency thiab ua kom zoo tus hneev taw, kev lag luam tsim wafer- qib ntim. Nyob rau hauv no advanced methodology, tag nrho puag ncig silicon disc yog ua tiav thiab kaw ib txhij ua ntej tej kev txiav yuav siv qhov chaw.
Thaum lub sij hawm no, ib txheej ntawm cov khoom siv tiv thaiv npog tag nrho saum npoo ntawm lub disc tsis tawg. Tsuas yog tom qab cov txheej txheem tiv thaiv tau kho tag nrho cov txheej txheem ntawm singulation pib. Singulation yog cov txheej txheem kev ua haujlwm siab phem ntawm kev hlais qhov loj, kaw disc rau ntau txhiab tus neeg, cov khoom kawg.
Cov txheej txheem txiav no yog qhov tsis yooj yim vim tias cov saw hniav yuav tsum tau txiav los ntawm ob qho tib si silicon nyuaj thiab cov silica-filled yas ib txhij. Nws xav tau incredibly tawv thiab ruaj khov txiav cov cuab yeej. Ib yam li tus kws kho tshuab siv tshwj xeeb Khoom Tungsten Carbide Rods Txhawm rau tiv thaiv kev hnav ntawm CNC hauv pem teb, cov dicing hniav yuav tsum tiv taus kev sib txhuam hnyav los tiv thaiv chipping cov npoo muag ntawm cov khoom tsim tshiab.
Yuav ua li cas cov tshuab zoo li LPKF tsav laser ua thiab fabrication rau pem hauv ntej?
Raws li qhov kev thov rau huab miniaturization loj hlob, tsoos mechanical txiav saws tau ncav cuag lawv lub cev qhov txwv. Thaum koj tab tom tsim cov khoom siv rau smartwatches lossis kev cog lus kho mob, cov hniav siv tshuab tsuas yog tuab heev thiab ntxhib dhau. Qhov no yog qhov uas siab heev laser tshuab, zoo li cov pioneered los ntawm lpkf ua, nkag mus rau revolutionize lub workflow.
Laser ua tam sim no yog ib feem tseem ceeb ntawm niaj hnub kev tsim khoom. Es tsis txhob sib tsoo los ntawm cov khoom, high-powered lasers instantly vaporize lub epoxy pwm compound thiab silicon hauv qab nws. Cov txheej txheem huv ablation no yoojyim cov npoo zoo kawg nkaus thiab tso cai rau ntau qhov sib txawv ntawm cov khoom ntawm cov kab ntau lawm.
Qhov loj heev kev nce qib txhais tau hais tias cov qauv yuav raug txiav thiab zoo li tus nrog ib tug precision ntawm ib tug ob peb µm (micrometers). Los ntawm kev sib txuas cov qib siab laser ablation nrog cov tsoos lithography, cov tuam txhab tsim khoom tuaj yeem tsim cov duab peb-dimensional pob uas tsis tuaj yeem tsim tawm ib xyoo caum dhau los.
Vim li cas cov vias thiab kev tshaj tawm tseem ceeb heev rau cov ICs siab?
Cov txheej txheem niaj hnub no tsis yog ib qho squares xwb; lawv yog complex, multi-layered skyscrapers ntawm cov ntaub ntawv. Raws li peb ntim ntau lub zog rau hauv ib qho chaw, qhov txoj kev ntawm cov teeb liab hluav taws xob dhau los ua qhov kev sib tw geometric monumental. Txoj hauv kev sab hauv yuav tsum yog luv heev kom tswj tau qhov nrawm thiab txo qis kev siv hluav taws xob.
Yuav kom ua tiav qhov no, engineers siv me me, vertically drilled qhov hu ua vias. Cov microscopic tunnels yog plated nrog a conductive hlau, feem ntau ua cu (tooj liab), txhawm rau txuas cov txheej txheem sib txawv ntawm cov substrate los yog sab hauv redistribution txheej. Cov rdl ua yog qhov tseem ceeb ntawm txoj kev loj microscopic uas reroutes ultra-fine kev sib txuas ntawm silicon tuag rau cov pob loj loj nyob rau sab nrauv.
Qhov no high-density layout yog qhov tsim nyog rau kev suav niaj hnub. Qee lub sij hawm, tsoos subtractive etching tsis tuaj yeem ua tiav cov kab zoo tsim nyog. Hauv cov xwm txheej no, tshuaj ntxiv cov txheej txheem kev tsim khoom yog siv los maj mam txhim kho qhov tseeb tooj liab qhov xav tau.
- Ntau tus Pin suav: Ntau dua chips xav tau kev sib txuas ntau dua.
- Shorter Signal Paths: Kev sib txuas ntsug ua rau txo cov teeb liab qeeb.
- Txo Hneev taw: Txheej tso cai rau me me tag nrho cov khoom siv ntau thiab tsawg.
Dab tsi yog cov teeb meem nrog thermal expansion thiab warpage thaum molding?
Thaum tshav kub kub yog tus yeeb ncuab kawg ntawm precision manufacturing. Thaum lub sij hawm high-temperature curing, tag nrho cov ntaub ntawv nthuav dav. Qhov teeb meem loj tshwm sim vim muaj qhov loj heev tsis sib haum hauv thermal expansion tus nqi ntawm cov ntshiab silicon tuag, tooj liab txhuas thav duab, thiab lub plhaub yas.
Peb ntsuas qhov expansion no siv lub coefficient ntawm thermal expansion (los yog cte). Yog tias CTE tsis ua tib zoo sib npaug, tag nrho lub rooj sib txoos yuav hloov pauv thaum nws txias mus rau chav sov. Nws cia bows zoo li qos yaj ywm chips. Qhov no warpage yog npau suav phem rau board los ua ke. Yog hais tias lub Cheebtsam tsis zoo tag nrho, lub solder sib koom yuav poob thaum lub sij hawm ua smt (surface mount technology) txuas txheej txheem.
Txhawm rau tiv thaiv qhov no, cov kws tshaj lij siv cov kev txawj ntse tsim cuab yeej software simulate thermal stresses ua ntej lub cev tsab qauv puas tau ua. Lawv ua tib zoo kho cov ntsiab lus silica muab tso rau hauv lub epoxy pwm kom ntseeg tau tias nws CTE zoo sib xws ntawm pawg thawj coj saib. Nws yog ib qho kev sib npaug zoo ntawm chemistry thiab physics.
Cov txheej txheem ntim txheej txheem yog qhov tsis txaus rau qhov xav tau ntawm huab cua 5g ua kev sib txuas lus thiab advanced radar systems. Ntawm cov zaus ultra-siab no, lub tsev nyob hauv lub cev nws tus kheej tuaj yeem cuam tshuam nrog cov xov tooj cua tshaj tawm. Peb yuav tsum ua raws li tsis tu ncua txhim kho kev ua tau zoo los ntawm kev siv cov khoom siv tshwj xeeb.
Rau ib high-frequency sensor los yog kav hlau txais xov, lub hluav taws xob khoom ntawm molding compound raug tshuaj xyuas hnyav heev. Yog hais tias cov khoom absorbs electromagnetic zog ntau dhau, lub teeb liab tuag. Yog li ntawd, tshwj xeeb qis-tsawg resins tau tsim tshwj xeeb kom cia cov teeb liab ceev ceev dhau mus yam tsis muaj degradation.
Tsis tas li ntawd, peb pom qhov sawv ntawm qhov advanced ic architecture. Cov tswv yim zoo li heterogenous kev koom ua ke thiab package-on-package tso cai rau cov khoom tshwj xeeb sib txawv-xws li lub cim xeeb thiab kev ua cov logic-kom muab tso rau ntsug. Qhov no ua rau cov teeb liab taug kev luv luv, ua kom lub zog tag nrho hluav taws xob thiab thermal kev ua haujlwm. Thaum precision teeb meem, siv cov cuab yeej zoo zoo li aTriple-Blade (3-Flute) End Zeb xyuas kom cov kev sim fixtures tuav cov high-speed li no zoo kawg nkaus tiaj tus thiab muaj tseeb.
Cov khoom siv polymer puas tuaj yeem tiv thaiv corrosion thiab tsis xws luag?
kiag li. Thawj qhov kev tiv thaiv tawm tsam qhov hnyav ntawm lub ntiaj teb lub cev yog kev ncaj ncees ntawm tus polymer plhaub. Seb nws yog ib qho yooj yim tsis paub meej fais fab transistor los yog ib qho nyuaj heev plaub flat tsis muaj txhuas (qfn ua) microcontroller, lub hom phiaj kawg yog xoom noo noo ingress. Dej vapor yog qhov ua rau sab hauv corrosion thiab ua tsis tiav ntxov hauv kev xa khoom hluav taws xob.
Ua kom tiav no zoo meej foob nyob rau hauv ntim ntau lawm, manufacturers xaiv ntau txoj kev raws li qhov nruj cov cai thov. Ua kua molding tej zaum yuav siv tau rau qhov muag heev, nyias cov rooj sib txoos uas tsis tshua muaj kev txhaj tshuaj yog yuav tsum tau tiv thaiv cov hlau cheb. Conversely, khov compression molding yog feem ntau nyiam rau cov loj, tiaj tus panels vim nws muab zoo heev uniformity thiab siab throughput.
Txhua kauj ruam hauv qhov tsim thiab tsim khoom theem yuav tsum nruj txheej txheem. Yeej muaj ib tug kev sib pauv nruab nrab ntawm tus nqi, ceev, thiab kev ntseeg siab. Txawm li cas los xij, los ntawm kev thov cov khoom siv nruj tswj hwm thiab siv kev daws teeb meem tshiab, kev lag luam txuas ntxiv tsim billions ntawm flawless li txhua txhua xyoo. Cov tsim nyog ntawm cov ntaub ntawv siv hauv ic fabrication kawg txiav txim siab lifespan ntawm technology peb cia siab rau txhua hnub.
Summary of Key Takeaways:
- Cov ic pob muab kev tiv thaiv lub cev tseem ceeb thiab qhov tseem ceeb ntawm kev siv hluav taws xob rau cov silicon tsis yooj yim.
- Epoxy pwm compound ua raws li qhov tseem ceeb tiv thaiv kev ya raws, poob siab, thiab sab hauv corrosion.
- Advanced ntim cov txheej txheem xav tau pristine kev sib txuas kev ncaj ncees kom muaj zog hluav taws xob khoom.
- Tswj cov thermal expansion (cte) yog qhov tseem ceeb los tiv thaiv warpage thiab xyuas kom meej meej ua smt board mounting.
- Kev nrhiav ntawm kev ua haujlwm siab hauv 5g ua daim ntawv thov cia siab rau qhov optimizing ob qho tib si pob tsim thiab qhov tshwj xeeb molding chemistry.
- Ua tiav kev sib dhos thiab kev sim nyob ntawm precision tooling, nruj kua dynamic tswj, thiab advanced ic technology.
- Los ntawm tsoos rov chip designs rau niaj hnub heterogenous stacking, cov versatility ntawm pob kev ua haujlwm tsav tag nrho tech kev lag luam rau pem hauv ntej.
- A semiconductor tsis tuaj yeem ua haujlwm hauv lub ntiaj teb tiag tiag yam tsis muaj kev tsim kho zoo kawg nkaus, thermally ruaj khov yas vaj tse.
