Yuav BGA Rework Chaw Nres Tsheb

Yuav BGA Rework Chaw Nres Tsheb 

1.Application Of Automatic Optical BGA Rework Station 

Ua haujlwm nrog txhua hom motherboards lossis PCBA.

Solder, reball, desoldering ntau hom chips: BGA, PGA, POP, BQFP, QFN, SOT223, PLCC, TQFP, TDFN, TSOP,

PBGA, CPGA, LED nti.

2.Product nta ntawmTsis siv neeg kho qhov muagBGA Rework Chaw nres tsheb 

3.Specification ntawmTsis siv neeg kho qhov muagBGA Rework Chaw nres tsheb 

4. Cov ntsiab lus ntawmTsis siv neeg kho qhov muagBGA Rework Chaw nres tsheb 

5.Vim li cas thiaj xaiv pebTsis siv neeg kho qhov muagBGA Rework Chaw nres tsheb? 

6. Daim ntawv pov thawj ntawmTsis siv neeg kho qhov muagBGA Rework Chaw nres tsheb 

UL, E-MARK, CCC, FCC, CE ROHS daim ntawv pov thawj. Lub caij no, txhawm rau txhim kho thiab ua kom zoo dua qhov system zoo,

Dinghua tau dhau ISO, GMP, FCCA, C-TPAT ntawm qhov chaw kuaj ntawv pov thawj.

7.Packing & shipping ntawmTsis siv neegBGA Rework Chaw nres tsheb 

8.Shipment rauTsis siv neeg kho qhov muagReballing BGA Tshuab

DHL / TNT / FEDEX. Yog tias koj xav tau lwm lub sijhawm shipping, thov qhia rau peb. Peb yuav txhawb koj.

9. Cov nqe lus them nqi

Hloov txhab nyiaj, Western Union, Credit Card.

Thov qhia rau peb yog tias koj xav tau lwm yam kev txhawb nqa.

10. Yuav ua li cas DH-A2 Tsis Siv Neeg BGA IC Reballing Tshuab ua haujlwm?

11. Muaj kev paub txog

Hais txog flash chip

Muab khoom dynamics

Tsis ntev los no, SandForce tus tswv tshiab nti tuam txhab LSI tau hais tias lawv tab tom tsim kho tshiab rau SF tswv SSD

hauv Ultrabook. Lub luag haujlwm tseem ceeb yog txo qis kev siv hluav taws xob ntawm SSD, thiab tseem txhim kho kev ua haujlwm ntawm cov khoom siv

SSD thiab ua kom lub startup. ceev.

parameter

3. 3V fais fab mov;

Internal nco cell array ntawm lub nti yog (256M + 8.192M) ntsis × 8bit, thiab cov ntaub ntawv sau npe thiab tsis nco yog ob qho tib si

(2k + 64) ntsis × 8bit;

I / O chaw nres nkoj nrog kev qhia / chaw nyob / cov ntaub ntawv multiplexing;

Program thiab lwv cov lus txib tuaj yeem raug ncua thaum lub zog hloov dua siab tshiab;

Ua tsaug rau qhov txhim khu kev qha CMOS txav rooj vag thev naus laus zis, nti tuaj yeem ua tiav qhov siab tshaj 100kB qhov kev pab cuam / tshem tawm lub voj voog, uas

guarantees cov ntaub ntawv cia rau 10 xyoo tsis poob.

Ua haujlwm raws li txoj cai

I/O0~I/O7: cov ntaub ntawv tawm tswv yim thiab tso zis chaw nres nkoj, I/O chaw nres nkoj feem ntau yog siv rau cov tswv yim ntawm kev qhia thiab chaw nyob thiab tawm tswv yim / tawm ntawm cov ntaub ntawv,

qhov twg cov ntaub ntawv yog

Nkag mus thaum lub sijhawm nyeem ntawv. Thaum lub nti tsis raug xaiv lossis tsis tuaj yeem tso tawm, I / O chaw nres nkoj nyob rau hauv lub xeev siab impedance.

CLE: Cov lus qhia latch yog siv los qhib cov lus qhia mus rau txoj kev qhia sau npe thiab latch cov lus qhia ntawm

nce ntug ntawm peb thiab CLE yog siab.

ALE: Chaw nyob latch, siv los qhib txoj hauv kev ntawm qhov chaw nyob mus rau qhov chaw nyob sab hauv, thiab qhov chaw nyob yog latched ntawm

nce ntug ntawm peb thiab ALE siab.

CE: Chip Selector, siv los tswj cov khoom xaiv. Thaum lub cuab yeej tsis khoom, CE siab thiab tsis quav ntsej, thiab lub cuab yeej rov qab tsis tau

mus rau lub xeev standby.

RE: Nyeem pab, siv los tswj cov ntaub ntawv txuas mus ntxiv thiab xa cov ntaub ntawv mus rau I / O tsheb npav. Cov ntaub ntawv tso zis tsuas siv tau rau

qhov poob ntawm RE, thiab nws tuaj yeem khaws cov ntaub ntawv sab hauv.

PEB: Cov ntawv sau ua haujlwm tau siv los tswj cov lus qhia sau ntawv ntawm I / O chaw nres nkoj. Tib lub sijhawm, cov lus txib, chaw nyob

thiab cov ntaub ntawv tuaj yeem latched ntawm qhov nce siab ntawm WE mem tes los ntawm qhov chaw nres nkoj no.

WP: Sau tus tiv thaiv, uas tuaj yeem sau-tiv thaiv hauv kev hloov hluav taws xob los ntawm WP davhlau ya nyob twg. Thaum WP qis, nws sab hauv

lub tshuab hluav taws xob qib siab yuav rov pib dua.

R / B: Npaj / Tsis khoom tso tawm, cov zis ntawm R / B tuaj yeem qhia qhov kev ua haujlwm ntawm lub cuab yeej. Thaum R / B qis, nws qhia tias qhov kev zov me nyuam,

erase los yog random nyeem ua haujlwm tab tom ua. Tom qab ua haujlwm tiav, R / B yuav rov qab mus rau qib siab. Txij li thaum

davhlau ya nyob twg yog ib qho qhib-drain tso zis, nws yuav tsis nyob rau hauv ib tug high-impedance lub xeev txawm tias thaum lub nti tsis xaiv los yog cov zis yog neeg xiam.

PRE: Lub hwj chim-on nyeem ntawv ua haujlwm, siv los tswj kev ua haujlwm tsis siv neeg nyeem thaum lub hwj chim qhib, thiab PRE lub davhlau ya nyob twg tuaj yeem txuas nrog

rau VCC kom paub txog lub hwj chim-on tsis siv neeg nyeem ntawv ua haujlwm.

VCC: Chip hwj chim davhlau ya nyob twg.

VSS: Chip hauv av.

NC: Hlo.

Ua hauj lwm xwm txheej kho

1 nplooj ntawv nyeem ua haujlwm

Lub neej ntawd lub xeev ntawm lub flash nti yog lub xeev nyeem. Kev nyeem ntawv yog pib cov lus qhia los ntawm kev sau tus 00h chaw nyob rau hauv

kev qhia sau npe los ntawm 4 qhov chaw nyob. Thaum cov lus qhia raug latched, kev nyeem ntawv tsis tuaj yeem sau rau hauv nplooj ntawv tom ntej.

Cov ntaub ntawv tuaj yeem tso tawm los ntawm ib nplooj ntawv los ntawm kev sau cov ntaub ntawv tso tawm random cov lus qhia. Cov ntaub ntawv chaw nyob tuaj yeem nrhiav tau

qhov chaw nyob tom ntej los ntawm random tso zis cov lus qhia los ntawm cov ntaub ntawv chaw nyob yuav tso zis. Random cov ntaub ntawv tso tawm haujlwm tuaj yeem siv ntau yam

sij hawm.

2 nplooj ntawv programming

Lub programming ntawm lub flash nti yog nplooj-los-nplooj, tab sis nws txhawb nqa ntau nplooj ntawv ib feem hauv ib nplooj ntawv programming voj voog,

thaum tus naj npawb ntawm cov nplooj ntawv sib law liag ntawm ib feem ntawm nplooj ntawv yog 2112. Txoj haujlwm ua haujlwm tuaj yeem pib los ntawm kev sau ntawv mus rau nplooj ntawv program

kev lees paub kev qhia (10h), tab sis cov ntaub ntawv txuas ntxiv yuav tsum tau nkag mus ua ntej kev qhia (10h) sau.

Kev thauj cov ntaub ntawv tsis tu ncua Tom qab sau cov ntaub ntawv txuas mus ntxiv (80h), nws yuav pib 4 lub voj voog ntawm chaw nyob thiab cov ntaub ntawv thauj khoom, tab sis

lo lus txawv ntawm cov ntaub ntawv programmed, nws tsis tas yuav thauj khoom. Lub nti txhawb random input ntawm cov ntaub ntawv nyob rau hauv nplooj ntawv thiab ua tau

hloov qhov chaw nyob raws li cov ntaub ntawv random input hais kom ua (85h). Random cov ntaub ntawv nkag tuaj yeem siv tau ntau zaus.

3 cache programming

Cache programming yog hom nplooj ntawv programming uas tuaj yeem ua tau los ntawm 2112-byte cov ntaub ntawv sau npe thiab siv tau hauv ib qho thaiv xwb. Vim

lub flash nti muaj nplooj ntawv tsis, nws tuaj yeem ua cov ntaub ntawv txuas mus ntxiv thaum cov ntaub ntawv sau npe yog programmed rau hauv lub cim xeeb ntawm tes. Cache

programming tsuas tuaj yeem pib tom qab qhov kawg ntawm lub voj voog programming tsis tiav thiab cov ntaub ntawv sau npe tau dhau los ntawm cache. Lub programming sab hauv tuaj yeem txiav txim los ntawm tus pin R / B. Yog tias lub kaw lus tsuas yog siv R / B los saib xyuas qhov kev ua tiav ntawm qhov program, ces qhov kev txiav txim ntawm nplooj ntawv kawg

ntawm cov phiaj xwm phiaj xwm yuav tsum tau npaj los ntawm nplooj ntawv tam sim no cov lus qhia programming.

4 chav tsev khaws cia dubbing

Cov nyhuv no tuaj yeem ua tau sai thiab ua tau zoo overwrite cov ntaub ntawv hauv ib nplooj ntawv yam tsis muaj kev nkag mus rau lub cim xeeb sab nraud. Txij li lub sijhawm siv mus tas li

nkag mus thiab reloading yog luv luv, lub peev xwm ua tiav ntawm lub kaw lus yog txhim kho. Tshwj xeeb tshaj yog thaum ib feem ntawm lub thaiv yog upgraded thiab cov

so ntawm qhov thaiv yuav tsum tau muab luam tawm rau hauv lub block tshiab, nws qhov zoo tau pom meej meej. Qhov kev ua haujlwm no yog kev ua haujlwm tsis tu ncua nyeem cov lus txib,

tab sis tsis tas yuav tsum tau nkag mus tas li thiab luam ntawm qhov kev pab cuam los ntawm qhov chaw nyob. Nyeem ua haujlwm ntawm nplooj ntawv qub chaw nyob

kev qhia ntawm "35h" tuaj yeem hloov tag nrho 2112 bytes ntawm cov ntaub ntawv mus rau hauv cov ntaub ntawv tsis muaj. Thaum lub nti rov qab mus rau lub xeev npaj, nplooj ntawv luam

cov ntaub ntawv input instruction nrog rau lo lus uas peb chaw nyob voj yog sau. Qhov kev ua yuam kev hauv qhov kev ua haujlwm no yog muab los ntawm "pass/fail" xwm txheej. Txawm li cas los xij,

Yog hais tias lub lag luam yuav siv sij hawm ntev heev los khiav, me ntsis kev ua haujlwm yuam kev yuav tshwm sim vim cov ntaub ntawv poob, ua rau sab nraud yuam kev "check / kho" ntaus ntawv check

ua tsis tiav. Vim li no, kev ua haujlwm yuav tsum raug kho nrog ob qhov yuam kev.

5 block lwv

Kev tshem tawm ntawm lub flash nti yog ua los ntawm kev thaiv. Qhov chaw nyob thaiv load yuav pib nrog kev qhia tshem tawm thaiv thiab ua tiav hauv ob lub voj voog. Qhov tseeb, thaum chaw nyob kab A12 txog A17 raug tso tseg, tsuas yog chaw nyob kab A18 txog A28 muaj. Lub erase tuaj yeem pib los ntawm kev thauj cov lus lees paub tshem tawm thiab qhov chaw nyob thaiv. Qhov kev ua haujlwm no yuav tsum tau ua nyob rau hauv qhov kev txiav txim no txhawm rau tiv thaiv cov ntsiab lus ntawm lub cim xeeb los ntawm kev cuam tshuam los ntawm cov suab nrov sab nraud thiab ua rau muaj qhov yuam kev.

6 nyeem xwm txheej

Cov xwm txheej sau npe nyob rau hauv lub flash nti paub meej tias qhov kev pab cuam thiab tshem tawm cov haujlwm tau ua tiav tiav. Tom qab sau ntawv qhia (70h) mus rau cov ntawv sau npe, lub voj voog nyeem ntawv tso tawm cov ntsiab lus ntawm cov xwm txheej sau npe rau I / O ntawm ntug kev poob ntawm CE lossis RE. Daim ntawv teev npe kev qhia yuav nyob twj ywm hauv lub xeev nyeem kom txog thaum cov lus qhia tshiab tuaj txog, yog li yog tias daim ntawv teev npe nyob rau hauv lub xeev nyeem thaum lub sij hawm nyeem random, ces yuav tsum tau muab cov lus qhia nyeem ua ntej lub voj voog nyeem pib.