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Txhua Txheej High Density Interconnected PCB
BASIC CONCEPT ntawm HDI
HDI stands rau High Density Interconnector, uas yog PCB manufacturing hom (technology), siv micro dig muag / faus los ntawm cov thev naus laus zis kom paub txog cov kab hluav taws xob siab. Nws tuaj yeem ua tiav qhov me me, kev ua haujlwm siab dua thiab cov nqi qis dua. HDI PCB yog kev nrhiav cov neeg tsim qauv, niaj hnub txhim kho mus rau qhov siab ceev thiab qhov tseeb. Lub thiaj li hu ua "siab" tsis tsuas yog txhim kho tshuab kev ua tau zoo, tab sis kuj txo lub tshuab loj. High Density Integration (HDI) thev naus laus zis tuaj yeem ua rau cov khoom siv kawg tsim ntau qhov me me, thaum ua tau raws li cov qauv siab dua ntawm kev ua haujlwm hluav taws xob thiab kev ua haujlwm zoo.
HDI PCB feem ntau suav nrog laser drilling qhov muag tsis pom ntawm thiab cov tshuab drilling qhov muag tsis pom ntawm. Cov txheej txheem ntawm kev coj ua ntawm cov txheej txheem sab hauv thiab txheej txheej feem ntau ua tiav los ntawm cov txheej txheem xws li los ntawm faus ntawm, qhov muag tsis pom ntawm, qhov sib tshooj, qhov staggered, hla qhov muag tsis pom / faus ntawm, los ntawm qhov, qhov muag tsis pom ntawm kev txhaws electroplating, nplua hlau qhov chaw me me thiab micro qhov. hauv disc, thiab lwm yam.
Muaj ntau hom HDI PCB: 1 txheej, 2 txheej, 3 txheej, 4 txheej thiab txhua txheej kev sib tshuam.
● Cov qauv ntawm 1 txheej HDI: 1 + N + 1 (nias ob zaug, laser drilling ib zaug).
● Cov qauv ntawm 2 txheej HDI: 2 + N + 2 (nias 3 zaug, laser drilling ob zaug).
● Cov qauv ntawm 3 txheej HDI: 3 + N + 3 (nias 4 zaug, laser drilling 3 zaug).
● Cov qauv ntawm 4 txheej HDI: 4 + N + 4 (nias 5 zaug, laser drilling 4 zaug).
Los ntawm cov qauv saum toj no, nws tuaj yeem txiav txim siab tias laser drilling ib zaug yog 1 txheej HDI, ob zaug yog 2 txheej HDI, thiab lwm yam. Txhua txheej Interconnection tuaj yeem pib laser drilling los ntawm cov core board. Nyob rau hauv lwm yam lus, dab tsi yuav tsum tau laser drilled ua ntej nias yog txhua txheej HDI.
Design Concept of HDI
1.Thaum peb ntsib tus qauv tsim nrog lub qhov nyob hauv BGA thaj tsam ntawm ntau txheej PCB, tab sis vim qhov chaw txwv, peb yuav tsum siv ultra me BGA pads thiab ultra me qhov kom ua tiav tag nrho cov board nkag mus, peb yuav ua li cas? Tam sim no peb xav qhia HDI siab precision PCB hais ntau zaus hauv PCBs raws li hauv qab no.
Cov tsoos drilling ntawm PCB raug cuam tshuam los ntawm cov cuab yeej drilling. Thaum qhov drilling qhov loj txog 0.15 hli, tus nqi twb tau siab heev thiab nws nyuaj rau kev txhim kho ntau dua. Txawm li cas los xij, vim muaj qhov chaw tsawg, thaum tsuas yog 0.1 hli qhov loj tuaj yeem siv tau, xav tau lub tswv yim tsim ntawm HDI.
2. Lub drilling ntawm HDI PCB tsis tso siab rau ib txwm siv tshuab drilling, tab sis siv laser drilling tshuab (qee zaum kuj hu ua laser board). Qhov drilling qhov loj ntawm HDI feem ntau yog 3-5mil (0.076-0.127mm), txoj kab dav yog 3-4mil (0.076-0.10mm), qhov loj ntawm cov ntaub qhwv tuaj yeem txo qis heev, yog li cov kab ntau lawm tuaj yeem tau txais ib unit cheeb tsam, uas ua rau siab ceev interconnection.
Qhov tshwm sim ntawm HDI thev naus laus zis tau hloov mus rau thiab txhawb kev txhim kho ntawm PCB kev lag luam, ua kom muaj ntau qhov ntom ntom BGA, QFP, thiab lwm yam los npaj rau ntawm HDI PCB. Tam sim no, HDI thev naus laus zis tau siv dav, ntawm 1 txheej HDI tau siv dav hauv PCB ntau lawm nrog 0.5 pitch BGA. Txoj kev loj hlob ntawm HDI thev naus laus zis yog tsav txoj kev loj hlob ntawm cov cuab yeej technology, uas ua rau kev txhim kho thiab kev vam meej ntawm HDI thev naus laus zis.
Tam sim no 0.5 pitch BGA chips tau maj mam tau txais los ntawm cov kws tsim qauv tsim, thiab cov pob qij txha ntawm BGA tau maj mam hloov los ntawm qhov chaw hollowed tawm los yog hauv av rau daim ntawv nrog cov teeb liab tawm tswv yim thiab tawm ntawm qhov chaw uas yuav tsum tau xaim.
3. HDI PCB feem ntau yog tsim los siv txoj kev stacking. Lub sijhawm ntau lub stacking yog ua tiav, qhov siab dua cov txheej txheem ntawm lub rooj tsavxwm. Ordinary HDI PCB yog ib txwm stacked ib zaug, thaum txheej siab HDI siv ob zaug los yog ntau tshaj stacking tshuab, nrog rau cov txheej txheem PCB siab heev xws li lub qhov stacking, qhov filling los ntawm electroplating thiab ncaj laser drilling, thiab lwm yam.
HDI PCB yog qhov tsim nyog rau kev siv cov cuab yeej sib txuas ua ke, thiab cov khoom siv hluav taws xob thiab cov teeb liab raug siab dua li cov PCB ib txwm muaj. Ntxiv rau. HDI muaj kev txhim kho zoo dua hauv xov tooj cua zaus cuam tshuam, electromagnetic yoj cuam tshuam, electrostatic tawm thiab thermal conduction, thiab lwm yam.
Daim ntawv thov
HDI PCB muaj ntau yam kev thov scenarios hauv hluav taws xob, xws li:
- Cov ntaub ntawv loj & AI: HDI PCB tuaj yeem txhim kho cov teeb liab zoo, roj teeb lub neej thiab kev ua haujlwm ua haujlwm ntawm lub xov tooj ntawm tes, thaum txo lawv qhov hnyav thiab tuab. HDI PCB tseem tuaj yeem pab txhawb kev tsim cov thev naus laus zis tshiab xws li 5G kev sib txuas lus, AI thiab IoT, thiab lwm yam.
-Automobile: HDI PCB tuaj yeem ua tau raws li qhov nyuaj thiab kev ntseeg tau ntawm cov tshuab hluav taws xob hauv tsheb, thaum txhim kho kev nyab xeeb, kev nplij siab thiab kev txawj ntse ntawm tsheb. Nws tseem tuaj yeem siv rau kev ua haujlwm xws li tsheb radar, navigation, kev lom zem thiab kev pab tsav tsheb.
-Kev kho mob: HDI PCB tuaj yeem txhim kho qhov raug, rhiab heev thiab ruaj khov ntawm cov cuab yeej kho mob, thaum txo lawv qhov loj thiab siv zog. Nws kuj tseem tuaj yeem siv rau hauv thaj chaw xws li kev kuaj mob, kev saib xyuas, kev kuaj mob thiab kev kho mob.
Cov ntawv thov tseem ceeb ntawm HDI PCB yog nyob rau hauv cov xov tooj ntawm tes, lub koob yees duab digital, AI, IC cab kuj, laptops, automotive electronics, robots, drones, thiab lwm yam, tau siv dav hauv ntau lub teb.
