Tshooj 1: Aluminium PCB yog dab tsi?
Aluminium substrate yog ib hom hlau-raws li tooj liab-clad board nrog zoo heev tshav kub dissipation functionality.Feem ntau, ib lub rooj tsavxwm ib leeg yog tsim los ntawm peb txheej: txheej txheej (tooj liab ntawv), txheej txheej insulating, thiab txheej hlau puag.Rau cov ntawv thov high-end, kuj tseem muaj ob sab qauv tsim nrog cov qauv ntawm cov txheej txheem Circuit Court, insulating txheej, aluminium puag, insulating txheej, thiab txheej Circuit Court.Ib qho me me ntawm cov ntawv thov suav nrog ntau txheej boards, uas tuaj yeem tsim los ntawm kev sib txuas cov txheej txheem ntau txheej nrog insulating txheej thiab txhuas hauv paus.
Ib leeg-sided aluminium substrate: Nws muaj ib txheej ntawm txheej txheej txheej txheej, cov khoom siv insulating, thiab txhuas phaj (substrate).
Ob chav sided aluminium substrate: Nws suav nrog ob txheej txheej txheej txheej txheej txheej, cov khoom siv insulating, thiab txhuas phaj (substrate) stacked ua ke.
Multi-layer printed aluminium circuit board: Nws yog lub rooj tsav xwm luam tawm los ntawm laminating thiab sib txuas peb lossis ntau txheej txheej txheej txheej txheej, cov khoom siv insulating, thiab txhuas phaj (substrate) ua ke.
Muab faib los ntawm txoj kev kho saum npoo:
Kub-plated board (Chemical nyias kub, tshuaj tuab kub, xaiv kub plating)
Ntu 2: Aluminium Substrate Ua Haujlwm Txoj Cai
Cov khoom siv hluav taws xob yog nto-mounted ntawm lub voj voog txheej.Cov cua sov tsim los ntawm cov cuab yeej siv thaum lub sijhawm ua haujlwm yog ua los ntawm cov txheej txheem insulating mus rau cov hlau puag txheej, uas tom qab ntawd dissipates cov cua sov, ua tiav cov cua sov dissipation rau cov khoom siv.
Piv nrog rau cov tsoos FR-4, aluminium substrates tuaj yeem txo qis thermal kuj, ua rau lawv zoo heev conductors ntawm tshav kub.Muab piv rau cov tuab-zaj duab xis ceramic circuits, lawv kuj muaj cov khoom zoo tshaj plaws.
Tsis tas li ntawd, aluminium substrates muaj cov hauv qab no tshwj xeeb zoo:
- Ua raws li RoHs cov cai
- Kev hloov pauv tau zoo dua rau cov txheej txheem SMT
- Siv tau zoo ntawm thermal diffusion hauv kev tsim hluav taws xob kom txo qis kev khiav hauj lwm qhov kub thiab txias, ua kom lub neej ntev, txhim khu lub zog ceev thiab kev ntseeg tau.
- Kev txo qis hauv kev sib dhos ntawm cov dab dej kub thiab lwm yam khoom siv, nrog rau cov khoom siv thermal interface, ua rau cov khoom ntim me me thiab qis dua cov khoom siv thiab cov nqi sib dhos, thiab kev sib xyaw ua ke ntawm lub zog thiab kev tswj xyuas.
- Hloov cov khoom tawg yooj yim ceramic substrates rau kev txhim kho txhua yam durability
Tshooj 3: Kev sib xyaw ntawm Aluminium Substrates
1. Txheej txheej Circuit Court
Cov txheej hauv Circuit Court (feem ntau yog siv electrolytic tooj liab ntawv ci) yog etched los ua cov ntawv luam tawm, siv rau kev sib dhos thiab kev sib txuas.Piv nrog rau cov tsoos FR-4, nrog tib lub thickness thiab kab dav, txhuas substrates tuaj yeem nqa cov dej ntws ntau dua.
2. Insulating Txheej
Cov txheej insulating yog ib qho cuab yeej tseem ceeb hauv aluminium substrates, ua haujlwm feem ntau rau adhesion, rwb thaiv tsev, thiab tshav kub conduction.Lub insulating txheej ntawm aluminium substrates yog qhov tseem ceeb tshaj plaws thermal barrier nyob rau hauv lub hwj chim module qauv.Cov thermal conductivity zoo dua ntawm cov txheej txheej insulating pab txhawb qhov sib txawv ntawm cov cua sov tsim thaum lub sijhawm ua haujlwm, ua rau qis kev khiav hauj lwm kub, nce module zog load, txo qhov loj me, ntev lifespan, thiab ntau zog tso zis.
3. Hlau Base Txheej
Kev xaiv ntawm cov hlau rau lub hauv paus hlau insulating yog nyob ntawm kev xav txog cov yam ntxwv xws li cov hlau puag coefficient ntawm thermal expansion, thermal conductivity, lub zog, hardness, qhov hnyav, qhov chaw, thiab tus nqi.
Ntu plaub: Vim li cas thiaj xaiv Aluminium Substrates
1. Thaum tshav kub kub dissipation
Ntau ob-tog thiab multi-alst-txheej txheem muaj ntom ntom thiab lub zog loj, ua kom sov dissipation nyuaj.Cov khoom siv sib xyaw ua ke zoo li FR4 thiab CEM3 yog cov khoom siv hluav taws xob tsis zoo ntawm cov cua sov thiab muaj cov txheej txheem rwb thaiv tsev, ua rau cov cua sov tsis txaus.Aluminium substrates daws qhov teeb meem kub dissipation.
2. Thermal Expansion
Thermal expansion thiab contraction yog nyob rau hauv cov ntaub ntawv, thiab cov khoom sib txawv muaj sib txawv coefficients ntawm thermal expansion.Aluminium-raws li cov ntawv luam tawm tau zoo daws cov teeb meem kub ntxhov, txo qhov teeb meem ntawm cov khoom sib txawv thermal expansion ntawm lub rooj tsavxwm cov khoom, txhim kho tag nrho cov kav ntev thiab kev ntseeg siab, tshwj xeeb tshaj yog nyob rau hauv SMT (Surface Mount Technology) daim ntawv thov.
3. Dimensional Stability
Aluminium-based printed boards yog qhov tseem ceeb tshaj plaws nyob rau hauv cov nqe lus ntawm qhov ntev piv rau cov ntaub ntawv insulated luam ntawv boards.Qhov kev hloov pauv ntawm aluminium-raws li cov ntawv luam tawm los yog aluminium core boards, rhuab ntawm 30 ° C mus rau 140-150 ° C, yog 2.5-3.0%.
4. Lwm Yam
Aluminium-raws li cov ntawv luam tawm muaj cov teebmeem tiv thaiv, hloov cov nkig ceramic substrates, tsim rau saum npoo mounting thev naus laus zis, txo qhov zoo ntawm cov ntawv luam tawm, hloov cov khoom xws li cov dab dej kub los txhim kho cov khoom kub thiab lub cev, thiab txo cov nqi tsim khoom thiab kev ua haujlwm.
Ntu 5: Kev siv ntawm Aluminium Substrates
1. Cov Khoom Siv Suab: Cov tswv yim / tso zis amplifiers, sib npaug amplifiers, audio amplifiers, pre-amplifiers, hwj chim amplifiers, thiab lwm yam.
2. Cov Khoom Siv Hluav Taws Xob: Hloov cov regulators, DC / AC converters, SW adjusters, thiab lwm yam.
3. Cov khoom siv hluav taws xob sib txuas lus: Cov khoom siv hluav taws xob ntau zaus, cov khoom siv lim dej, cov khoom siv hluav taws xob sib txuas, thiab lwm yam.
4. Chaw Ua Haujlwm Automation Equipment: Hluav taws xob cov tsav tsheb, thiab lwm yam.
5. Automotive: Electronic regulators, ignition systems, power controllers, thiab lwm yam.
6. Computers: CPU boards, floppy disk drives, hwj chim units, thiab lwm yam.
7. Fais Modules: Inverters, solid-state relays, rectifier txuas hniav, thiab lwm yam.
8. Teeb pom kev zoo: Nrog kev txhawb nqa ntawm lub zog txuag teeb, aluminium-raws li substrates tau dav siv hauv LED teeb.
Post lub sij hawm: Aug-09-2023
