Cov yam ntxwv thiab qhov zoo ntawm ntau daim ntawv ntim khoom semiconductor:
DIP dual hauv - kab pob
DIP (Dual In Line Package) yog hais txog kev sib koom ua ke ntawm cov khoom siv hluav taws xob uas tau ntim rau hauv ob hom kab. Feem ntau ntawm cov me me thiab nruab nrab- qhov loj sib xyaw ua ke (ICs) siv hom ntim no, thiab tus naj npawb ntawm cov pins feem ntau tsis tshaj 100. Lub CPU nti ntim rau hauv DIP muaj ob kab ntawm cov pins uas yuav tsum tau muab tso rau hauv lub qhov (socket) nrog DIP qauv. Tau kawg, nws tseem tuaj yeem txuas ncaj qha mus rau hauv lub rooj tsav xwm hauv Circuit Court nrog tib tus lej ntawm cov qhov thiab cov qauv geometric rau kev sib txuas. Kev saib xyuas tshwj xeeb yuav tsum tau ua thaum ntxig thiab tshem tawm DIP ntim cov chips los ntawm lub qhov (socket) kom tsis txhob ua rau cov pins puas.
DIP ntim muaj cov yam ntxwv hauv qab no:
1. Haum rau kev xuas nrig ntaus thiab soldering ntawm PCB (luam tawm Circuit Board), yooj yim rau kev khiav lag luam.
Qhov sib piv ntawm thaj chaw nti thiab thaj chaw ntim khoom yog qhov loj, ua rau muaj qhov ntim loj dua.
Lub 8088 nyob rau hauv Intel series CPUs txais yuav daim ntawv ntim no, xws li cache thiab cov cim xeeb thaum ntxov.
BGA pob daim phiaj array ntim
Nrog rau txoj kev loj hlob ntawm integrated circuit technology, lub ntim yuav tsum tau rau integrated circuits yog ua nruj me ntsis. Qhov no yog vim lub tshuab ntim khoom muaj feem xyuam nrog kev ua haujlwm ntawm cov khoom. Thaum qhov zaus ntawm IC tshaj 100MHz, cov txheej txheem ntim khoom ib txwm tuaj yeem tsim qhov tshwm sim li -hu ua "CrossTalk" tshwm sim. Ntxiv mus, thaum tus naj npawb ntawm cov pins ntawm IC ntau dua 208, cov txheej txheem ntim khoom ib txwm muaj lawv cov teeb meem. Yog li ntawd, ntxiv rau kev siv QFP ntim, feem ntau tus pin suav chips niaj hnub no (xws li cov duab kos thiab chipsets) tau hloov mus rau BGA (Ball Grid Array Package) ntim tshuab. BGA tau dhau los ua qhov kev xaiv zoo tshaj plaws rau siab - qhov ceev, siab - kev ua tau zoo, thiab ntau tus pin ntim ntawm CPUs, sab qab teb / sab qaum teb choj chips ntawm motherboards, thiab lwm yam khoom siv txij li thaum nws tshwm sim.
BGA ntim tshuab tuaj yeem muab faib ua tsib pawg: 1. PBGA (Plasric BGA) substrate: feem ntau muaj ntau- txheej board muaj li ntawm 2-4 txheej ntawm cov ntaub ntawv organic. Hauv Intel series CPUs, Pentium II, III, thiab IV processors txhua tus siv daim ntawv ntim no.
2. CBGA (Ceramic BGA) substrate: yog hais txog ib tug ceramic substrate, thiab hluav taws xob kev twb kev txuas ntawm chips thiab substrates yog feem ntau ntsia siv ib tug flip nti (FC) installation txoj kev. Hauv Intel series CPUs, Pentium I, II, thiab Pentium Pro processors tau txais txhua daim ntawv ntim no.
3. FCBGA (FilpChipBGA) substrate: nyuaj ntau- txheej substrate.
4. TBGA (TapeBGA) substrate: Lub substrate yog 1-2 txheej PCB Circuit Board nrog sawb zoo li cov khoom muag.
5. CDPBGA (Carity Down PBGA) substrate: yog hais txog lub nti cheeb tsam (tseem hu ua kab noj hniav cheeb tsam) nrog ib tug square zoo li kev nyuaj siab nyob rau hauv nruab nrab ntawm lub pob.
BGA ntim muaj cov yam ntxwv hauv qab no:
Txawm hais tias tus naj npawb ntawm I / O pins tau nce, qhov kev ncua deb ntawm tus pins yog ntau dua li ntawm QFP ntim, uas txhim kho cov txiaj ntsig.
Txawm hais tias kev siv hluav taws xob ntawm BGA nce, kev siv cov khoom siv hluav taws xob tswj tau tuaj yeem txhim kho cov hluav taws xob thiab thermal kev ua haujlwm.
3. Lub teeb liab kis tau tus mob qeeb me me, thiab qhov kev hloov pauv hloov tau zoo heev.
4. Kev sib dhos tuaj yeem nqa tau siv coplanar vuam, txhim kho kev ntseeg tau zoo.
Txoj kev ntim BGA tau nkag mus rau theem ua tau zoo tom qab ntau tshaj kaum xyoo ntawm kev txhim kho. Xyoo 1987, Citizen Corporation hauv Nyij Pooj tau pib tsim cov chips nrog cov yas encapsulated pob grid array ntim (BGA). Tom qab ntawd, cov tuam txhab xws li Motorola thiab Compaq kuj tau koom nrog kev txhim kho BGA. Xyoo 1993, Motorola yog thawj tus siv BGA rau cov xov tooj ntawm tes. Nyob rau tib lub xyoo, Compaq kuj tau siv nws rau cov chaw ua haujlwm thiab cov khoos phis tawj PC. Txog rau tsib lossis rau xyoo dhau los, Intel pib siv BGA hauv computer CPUs (xws li Pentium II, Pentium III, Pentium IV, thiab lwm yam) thiab chipsets (xws li i850), uas tau ua lub luag haujlwm hauv kev nthuav dav daim ntawv thov ntawm BGA. BGA tau dhau los ua IC ntim tshuab nrov heev, nrog lub ntiaj teb kev lag luam loj ntawm 1.2 billion daim hauv xyoo 2000. Nws xav tias kev lag luam xav tau yuav nce ntau dua 70% hauv 2005 piv rau 2000.
