Dab tsi yog cov teeb meem uas yuav tsum tau them nyiaj mloog thaum rov ua haujlwm PCBA Boards?
Nov 23, 2022
PCBA boards qee zaus reworked, thiab rework kuj yog ib feem tseem ceeb heev. Thaum ib qho yuam kev me ntsis tshwm sim, nws tuaj yeem ua rau lub rooj tsav xwm hauv Circuit Court raug muab pov tseg thiab siv tsis tau. Hnub no, Jedduobang cov kws tshawb fawb thiab cov kws tshaj lij yuav coj koj cov kev cai tshwj xeeb rau PCBA rework! Cia peb saib!
1. Kev yuav tsum tau ua rau PCBA thiab noo noo rhiab Cheebtsam
1. Tag nrho cov khoom tshiab yuav tsum tau muab ci thiab dehumidified nyob rau hauv raws li cov dej rhiab heev rhiab heev thiab cia tej yam kev mob ntawm lub Cheebtsam thiab cov yuav tsum tau muaj nyob rau hauv "Specifications for the Use of Moisture Sensitive Components".
2. Yog tias cov txheej txheem kho yuav tsum tau ua kom sov siab tshaj 110 degree, lossis yog tias muaj lwm cov khoom siv noo noo-rhiab hauv 5 hli ntawm qhov chaw kho, nws yuav tsum ua raws li cov dej noo rhiab heev thiab khaws cia ntawm cov khoom, thiab ua raws nrog rau cov kev cai tsim nyog nyob rau hauv "Specifications for the Use of Moisture Sensitive Components" Ua kev kho dehumidification ci.
3. Rau cov khoom uas muaj dej-rhiab heev uas yuav tsum tau rov qab siv dua tom qab kho, yog tias cov cua kub reflow, infrared, thiab lwm yam yog siv los ua kom sov cov pob qij txha los ntawm cov khoom siv, nws yuav tsum tau ua raws li cov dej noo rhiab heev thiab kev cia ntawm cov khoom. Cheebtsam, thiab raws li "Moisture Sensitive Cheebtsam" Cov kev cai tseem ceeb nyob rau hauv "Devices Specification" yuav tsum tau ci thiab dehumidification kev kho mob. Rau cov txheej txheem rework uas siv phau ntawv ferrochrome cua sov solder pob qij txha, nyob rau hauv lub premise tias cov txheej txheem cua sov yog tswj, pre-baking kev kho mob yog tsis tsim nyog.
PCBA board rov ua haujlwm
2. Kev cia ib puag ncig rau PCBA thiab cov khoom siv tom qab ci
Tom qab ci, cov khoom tsis muaj dej noo, PCBA, thiab cov khoom siv tshiab uas tsis tau hloov pauv yuav tsum tau rov qab ci dua ib zaug thaum cov xwm txheej khaws cia dhau hnub tas sij hawm.
Thib peb, qhov yuav tsum tau muaj rau cov sij hawm cua sov rau PCBA rework
Qhov tso cai kho cua sov rau cov khoom siv tsis pub tshaj 4 zaug; qhov kev tso cai kho cua sov lub sij hawm rau cov khoom tshiab tsis pub tshaj 5; qhov kev tso cai kho cua sov lub sij hawm rau reusable Cheebtsam uas raug tshem tawm tsis pub tshaj 3 zaug.
Cov lus saum toj no yog qhov yuav tsum tau ua rau PCBA pawg thawj coj rov ua haujlwm, Kuv vam tias yuav muab qee qhov kev siv rau koj!