Gwaro rekugadzira nekugadzira PCB Gold Finger
Gold Finger PCB imhando yakasarudzika yebhodhi redunhu rakadhindwa, rinowanzoshandiswa muzvirongwa zvinoda kuvimbika kwakanyanya uye kusakara, zvakaita semamabhodhi emakombiyuta, makadhi emifananidzo nezvimwe zvishandiso zvemagetsi. Chinyorwa chino chichaongorora tsananguro, nzira dzekurapa pamusoro uye kufunga nezvemagadzirirwo ePCB dzeminwe yegoridhe.
Dhairekitori reZvinyorwa
Ⅰ. Tsanangudzo yeMunwe weGoridhe
II. Nzira dzekupedzisa pamusoro pemaPCB eminwe yegoridhe
III. Kuchenjerera pakugadzira minwe yegoridhe
IV. Kuchenjerera pakugadzirisa minwe yegoridhe
Mibvunzo nemhinduro zvinowanzo bvunzwa
1. Tsanangudzo yeMunwe weGoridhe
Chigunwe chegoridhe, chinozivikanwawo sechinobatanidza chemucheto, chishandiso chinoisa mugumo mumwe wePCB muchikamu chekubatanidza. Chinoshandisa mapini ekubatanidza senzvimbo yekubuditsa kubatana kwekunze kwePCB kuti chiwane conductivity pakati pe solder pad kana copper sheet nemapini enzvimbo anoenderana. Kuti zviwedzere conductivity yayo, oxidation resistance uye wear resistance, minwe yegoridhe inowanzo gadziriswa ne nickel gold plating kana ENIG. Nekuda kwechimiro chayo chakafanana nechigunwe, inonzi Gold Finger.
2. Nzira dzekupedzisa pamusoro pemaPCB eminwe yegoridhe
Nzira yekupedzisa pamusoro peGold Finger PCB yakakosha pakushanda kwayo uye nzvimbo dzekushandisa. Idzi ndidzo nzira mbiri dzakajairika:
1) Kuisa goridhe reNickel
Kuisa goridhe reNickel inzira yakajairika yekupedzisa pamusoro, uye ukobvu hwayo hunogona kusvika 3-50 micro inches. Ine conductivity yakanaka, resistance oxidation uye resistance yekupera, saka inoshandiswa zvakanyanya pamaPCB egoridhe anoda kuiswa nekubviswa kakawanda kana maPCB anoda kukweshana kwemuchina kakawanda. Zvisinei, nekuda kwekudhura kwakanyanya kwegoridhe, kuisa goridhe reNickel kunowanzo shandiswa chete pakurapa nzvimbo dzemunharaunda dzakadai segoridhe. Pamusoro penzira iyi yekupedzisa pamusoro ichena yesirivha, asi kugona kwayo kusungirira kwakaderera zvishoma.
2) Bvumirana
ENIG imwe nzira yakajairika yekupedzisa pamusoro, ine ukobvu hunowanzoita 1 micro inch uye kusvika 3 micro inches. ENIG ine conductivity yakanaka, kupfava kwepamusoro uye kugona kusundidzira, zvichiita kuti ishandiswe zvakanyanya mumaPCB ane magadzirirwo akanyanya kunaka ane magadzirirwo akadai se keyway, bound IC, BGA, nezvimwewo. Kune maPCB egoridhe asingade kuramba kupfeka zvakanyanya, maitiro ese epaneru eENIG anogonawo kusarudzwa, ayo ane mutengo wakaderera. Pamusoro peENIG yakapedzwa ndeyero yegoridhe.
3. Kuchenjerera pakugadzira goridhe neminwen
Pakugadzira PCB yegoridhe yemunwe, pane zvimwe zvinhu zvakakosha zvinofanira kucherechedzwa:
1) Kuramba kupfeka kwemunwe wegoridhe
Kune maPCB anoda kuiswa nekubviswa nguva nenguva, kuti minwe yegoridhe isaparare zvakanyanya, zvinowanzo shandiswa kushandisa electroplating yegoridhe rakaoma.
2) Kutsvedza kwemunwe wegoridhe
Zvigunwe zvegoridhe zvinowanzoda kubatwa nechamfering, nekona yekubatwa nechamfering ye45°. Kuvapo kwechamfering kunogona kuderedza njodzi dzinogona kuitika, sezvakaratidzwa mumufananidzo.
3) Kuvhura kwehwindo remask ekusolder
Pedhi rekusonesa remunwe wegoridhe rinofanira kuiswa hwindo rakavhurika pabhuroko rese remask ekusonesa, pasina chikonzero chesimbi yesimbi.
4) Kureba pakati pechifukidzo chesolder nechigunwe chegoridhe
Kureba kuri pakati pechigunwe chinosungirirwa nemunwe wegoridhe kunofanirwa kuenderana nezvinodiwa pakugadzira, kazhinji zvinoda kuti chigunwe chinosungirirwa chive chinhambwe che1mm kubva panzvimbo yechigunwe chegoridhe, kusanganisira kuburikidza nemapadhi anosungirirwa.
5) Kupera kwemunwe wegoridhe pamusoro
Pamusoro pemunwe wegoridhe hapafanirwe kufukidzwa nemhangura.
6) Kurapa kwekucheka mhangura
Matinji ese emukati memunwe wegoridhe anoda kugadziriswa kwemhangura, kazhinji nehupamhi hwemhangura hwe3mm. Izvi zvinogona kuderedza musiyano weimpedance pakati pemunwe wegoridhe nemutsetse weimpedance, ukuwo zvichibatsira ESD.
Izvi zviri pamusoro apa zvinhu zvakawanda zvinoda kutariswa zvakanyanya pakugadzira PCB yemunwe wegoridhe kuti ive nechokwadi chekuti chigunwe chegoridhe chakavimbika uye chinoshanda.
4. Kuchenjerera pakugadzirisa minwe yegoridhe
Kana uchironga kushandisa gold finger PCB, zvinotevera ndezvimwe zvezvinofanira kutorwa panguva yekugadzirisa Rich Full Joy's PCB:
1. Hukobvu hwePCB hunogona kuchekwa hunobva pa1.2mm kusvika 2.4mm. MaPCB ane ukobvu husiri mukati mehukobvu uhwu haagone kuchekwa.
2. Kudzika nekona yemupendero wakakomberedzwa zvinowanzova pakati pe20° ne45°. Kureba pakati pemunwe wegoridhe nemucheto wePCB kunofanirwa kukwana, kazhinji kunokurudzirwa kuva 0.6m kusvika 1.5mm, kudzivirira kukuvadza munwe wegoridhe.
Rich Full Joy inonyanya kugadzirisa maPCB egoridhe kuti ive nechokwadi chekuti mhando yepamusoro uye kuvimbika. Maitiro edu anogona kusangana nezvinodiwa zvakasiyana zvekugadzira uye kupa mashandiro akanaka kwazvo pabasa renyu.
MaPCB egoridhe ane zvigunwe anoita basa rakakosha mumunda wemazuva ano wemagetsi, uye kuvimbika kwawo uye mashandiro awo zvinoenderana nenzira dzekupedzisa pamusoro uye ruzivo rwekugadzira. Nekusarudza nzira dzakakodzera dzekugadzirisa uye kutarisisa zvinhu zvakakosha zvekugadzira, zvinokwanisika kuve nechokwadi chekuti maPCB egoridhe ane zvigunwe anoshanda zvakanaka mumashandisirwo akasiyana-siyana. Kana uchida masevhisi epamusoro ekugadzirisa maPCB egoridhe ane zvigunwe, ndapota funga nezveRuizhi Xinfeng, uye tichafara kukupa rutsigiro.
Mibvunzo neMhinduro
1. Chii chinonzi Gold Finger PCB?
PCB yemunwe wegoridhe imhando yakakosha yebhodhi redunhu rakadhindwa, rinowanzoshandiswa mukushandiswa kwemagetsi kunoda kuvimbika kwakanyanya uye kuramba kupfeka, rakatumidzwa zita rayo sechigunwe.
2. Ndedzipi nzira dzekupedzisa pamusoro pePCB yemunwe wegoridhe?
Nzira dzakajairika dzekupedzisa pamusoro pemaPCB eminwe yegoridhe dzinosanganisira nickel gold electroplating uye ENIG, izvo zvine zvakanakira zvakasiyana uye zvinoshanda.
3. Nzira yekuwedzera sei kuramba kwekupfeka kwemunwe wegoridhe?
Kuti minwe yegoridhe isanyanya kusimba pakupfekwa, zvinowanzo shandiswa kushandisa electroplating yegoridhe rakaoma kuti ivandudze kuoma kwenzvimbo dzayo.
4. Ndezvipi matanho ekudzivirira anofanira kutorwa pakugadzira PCB yegoridhe?
Pakugadzira PCB yeminwe yegoridhe, zvakakosha kutarisisa zvinhu zvakakosha zvakaita sekukwesha, kuvhura mahwindo emasiki esimbi, daro riri pakati pemapedhi esimbi neminwe yegoridhe, uye kupenya kweminwe yegoridhe pamusoro.
5. Maitiro ekusimbisa mhando yePCB yemunwe wegoridhe?
Tinoshandisa tekinoroji yepamusoro uye kutonga kwakasimba kwemhando kuti tive nechokwadi chekuti zvigadzirwa zvemhando yepamusoro uye zvakavimbika zvinopihwa.
