Lub etching ntawm cov ntawv luam tawm Circuit Board

Etching yog txheej txheem ntawm kev sib npaug ntawm cov tshuaj etching rau saum npoo ntawm cov ntawv ci tooj liab nyob rau hauv qee qhov kub thiab txias los ntawm lub nozzle, uas ua rau cov tshuaj tiv thaiv oxidation-txo nrog tooj liab tsis muaj kev tiv thaiv ntawm etching inhibitor. Cov tooj liab uas tsis xav tau raug tshem tawm, thiab lub substrate raug nthuav tawm ua ntej raug tev tawm los ua lub voj voog. Lub ntsiab Cheebtsam ntawm etching tov: tooj liab chloride, hydrogen peroxide, hydrochloric acid, mos dej.

 

Cov yam ntxwv ntawm cov ntawv luam tawm Circuit Board etching yog cov nqi tsim khoom tsawg, kev ua haujlwm siab, thiab muaj peev xwm los tsim cov ntawv luam tawm nyuaj.

 

Tab sis nws kuj muaj qee cov ntsiab lus uas yuav tsum tau them sai sai rau, ua ntej ntawm tag nrho cov, kev xaiv thiab qhov sib piv ntawm cov kua etching, vim cov kua sib txawv muaj qhov sib txawv ntawm cov ntawv luam tawm sib txawv.

 

Thib ob, rau kev kho cov kua dej ua tiav, nws yog ib qho tsim nyog yuav tsum tau them sai sai rau cov teeb meem ib puag ncig thiab tsis muab pov tseg ncaj qha rau hauv qhov xwm txheej. Tsis tas li ntawd, nws tseem yuav tsum tau tswj lub sijhawm etching thiab qhov kub thiab txias, thiab tsis tso cai rau etching ntau dhau, txwv tsis pub nws yuav cuam tshuam rau qhov zoo ntawm lub rooj tsav xwm hluav taws xob.

 

Feem ntau, qhov ntev ntawm lub rooj tsavxwm luam tawm yog immersed nyob rau hauv cov tshuaj etching, qhov hnyav dua qhov teeb meem ntawm sab corrosion. Sab erosion yuav cuam tshuam rau qhov tseeb ntawm cov xov hlau, thiab kev yaig sab loj yuav ua rau nws tsis tuaj yeem tsim cov xov hlau zoo. Thaum lub lateral erosion thiab protrusion txo, etching coefficient yuav nce, thiab siab etching coefficient qhia lub peev xwm los tuav nyias nyob ntawm tej, cia cov etched nyob ntawm tej mus rau qhov qub nplai.

 

Muaj ntau yam uas cuam tshuam rau sab corrosion

1. Etching txoj kev

Soaking thiab bubbling etching tuaj yeem ua rau sab loj dua corrosion, thaum txaws thiab txau etching muaj me me sab corrosion, nrog tshuaj tsuag etching muaj qhov zoo tshaj plaws.

 

2. Hom etching tov

Cov kev daws teeb meem sib txawv muaj cov tshuaj sib txawv, uas ua rau sib txawv etching tus nqi thiab etching coefficients.

Piv txwv li, etching coefficient ntawm kev suav cov tooj liab chloride etching tov yog 3, thaum lub etching coefficient ntawm alkaline tooj liab chloride tuaj yeem ncav cuag 4.

 

3. Etching tus nqi

Tus nqi qis qis tuaj yeem ua rau muaj kev xeb loj heev. Txhim kho qhov zoo ntawm etching yog ze ze rau kev nrawm nrawm ntawm etching. Qhov ceev ntawm etching tus nqi, lub sij hawm luv dua lub substrate nyob rau hauv cov txheej txheem etching, qhov me me ntawm sab etching, thiab qhov clearer thiab ntau orderly cov etched qauv.

 

4.PH tus nqi ntawm etching tov

Thaum pH tus nqi ntawm alkaline etching tov yog siab, etching yuav nce.

Yog hais tias qhov ceev ntawm alkaline etching tov yog tsawg dhau, nws yuav ua rau sab corrosion. Xaiv ib qho etching tov nrog siab tooj liab concentration yog qhov zoo heev rau kev txo qis sab corrosion.

 

5.Copper foil thickness

Nws yog qhov zoo tshaj plaws los siv nyias tooj liab ntawv ci rau etching nyias cov xov hlau nrog tsawg kawg sab erosion. Lub thinner lub hlau dav, lub thinner lub tooj liab ntawv ci thickness yuav tsum.

 

 

Txhawm rau kom ua tiav cov khoom lag luam zoo tshaj plaws hauv Circuit Board etching, nws tseem yuav tsum tau ua kom paub qee cov tswv yim, xws li xaiv cov kev daws teeb meem tsim nyog thiab txhim kho lub sij hawm raug. Tsis tas li ntawd, cov ntawv luam tawm Circuit Board etching kuj yuav tsum tau siv qee cov cuab yeej pabcuam, xws li cov tshuab raug, cov tsim tawm, thiab lwm yam.