Ingcambu unobangela nokuwa ixhomekeke iimpawu eziphathekayo. Ukusombulula ingxaki le shrinkage le ziqinile-kwiFlexible PCB Board , makhe kukwazisa okufutshane kwiMeko nesixhobo kwipleyiti Polyimide dyondzisaka:
(1) polyimide na umsebenzi oncomekayo thermal, unako ukumelana mothuko wobushushu zonyango ngelotha ubushushu okhokelayo-free;
(2) Inkoliso izixhobo abavelisi bakholisa ukusebenzisa ibhodi kwiziphaluka dyondzisaka izixhobo ezincinane ekufuneka ukugxininisa ingqibelelo uphawu;
(3) Polyimide kukho ubushushu yeglasi eliphezulu inguqu kunye neempawu indawo yokunyibilika phezulu,
iimeko eziqhelekileyo ukuba adluliselwa 350 ℃ okanye ngaphezulu;
(4) Xa organic nokonakala, polyimide na ezingenakunyibilika kwi izinyibilikisi eziqhelekileyo organic.
izinto ipleyiti Flexible, ndikuhambise engundoqo izinto isiseko PI neglu inobudlelwane, oko kukuthi, ulwalamano enkulu kunye imidation ka-PI, kungona iqondo imidization, ngokuqina controllability.
Ngokutsho imithetho eqhelekileyo imveliso, emva ibhodi bhetyebhetye ukusika, kunye nokusekwa komgca imizobo, kunye indibanisela ngqongqo kwaye soft kwinkqubo ucinezelo kuya kumanqanaba angafaniyo ukukhula nokurhwaqela kwimizobo ngasekhohlo umgca, amandla kunye nolwalathiso , Iya kukhokelela yokuziqhelanisa ntshikilelo ebhodini lonke, kwaye ekugqibeleni kukhokelela ummiselo jikelele webhodi phezulu kunye utshintsho phantsi; kule nkqubo yokudibanisa soft and nzima, njengoko komhlaba egubungele bhanya noseko eziphathekayo PI ukwanda lomlingani awungqinelani, Phakathi imihlaba iqondo elithile kwanda.
Ukususela isizathu uhlobo, naziphi na ukunyuka eziphathekayo kwaye liyachatshazelwa lobushushu kwaye, ngenxa yokuba ixesha elide kwi imveliso PCB nkqubo, izinto emva kokuba inkqubo ezininzi ashushu zimanzi, ixabiso shrinkage ophezulu kumanqanaba ezahlukeneyo utshintsho ezifihlakeleyo, kodwa kwixesha elide eyona amava imveliso, utshintsho okanye rhoqo.
Indlela ukulawula nokuphucula?
Ngokwenene, ke ntshikilelo lwangaphakathi umqulu nganye iimpapasho ezahlukeneyo, yaye akayi kuba ngqo linye ulawulo inkqubo kwibhetshi nganye amacwecwe. Ngoko ke, lo kolawulo ngumlingani lokwanda eziphathekayo isekelwe kwinani elikhulu iziseko zovavanyo On ukulawula inkqubo ze data Uhlalutyo lwamanani kubaluleke ngokukhethekileyo. Xa msebenzi, le shrinkage of esityeni bhetyebhetye yohlulwe manqanaba:
I wokuqala ivela somnyango bhaka, Eli nqanaba libizwa kubangwa iziphumo ubushushu:
Ukuqinisekisa ukuba kwipleyiti yokubhaka ebangelwe ngokuvela nokuwa uzinzo, ngowokuqala ukwenza ukuvumelana ulawulo, phantsi ndawo of a material elimanyeneyo, ngamnye kufudumeze yokubhaka ipleyiti kunye nemisebenzi okupholisa kufuneka lungqinelane, ungaveli niphuthuma ukusebenza, kwaye ufake i igqityiwe iipleyiti emoyeni ngenxa yokuchithwa ubushushu. Indlela kuphela kuncitshiswe uxinzelelo kwangaphakathi okwenziwa ukwandiswa eziphathekayo kunye nokuncipha.
I yesibini Isigaba yenzeke kule nkqubo transfer ipateni. Le shrinkage yale sigaba kubangwa ukutshintsha orientation ntshikilelo mbandela.
Ukuqinisekisa ukuba inkqubo yogqithiselo umgca uzinzile, Onke amaxwebhu ukubhaka ayikwazanga atshixize, ngqo ngokusebenzisa umgca wokucoca yemichiza umphezulu kwangaphambili-unyango, emva koxinzelelo inwebu umphezulu kufuneka umgangatho off, ibhodi umphezulu emi phambi nasemva kwexesha exposure kufuneka kwanele , emva kokuba transfer entanjeni, ngenxa kutshintshwe orientation ntshikilelo, ipleyiti bhetyebhetye nosondeza isidanga ezahlukeneyo crimp kunye nokuhla, ngaloo ndlela imbuyekezo umboniso ulawulo nobudlelwane kumgca ukuya nzima yaye ezithambileyo kunye nezo ikwazi ukulawula, e Kwangaxeshanye, ukunyuka ipleyiti bhetyebhetye kunye ascertainment uluhlu lwamaxabiso, na imveliso zokuxhasa ayo amaplanga ngqwabalala basis data.
I lesithathu sigaba ucutheko lwenzeka kwinkqubo beplanga cofa nzima kwaye ethambileyo, imida ucinezelo engundoqo kunye neempawu eziphathekayo kweli nqanaba azimisele.
Iimeko eziphembelela le sigaba yokwanda ziquka izinga ubushushu lamination, ucwangciso yemida uxinzelelo, kwaye lentsalela rate yobhedu Ebubanzini core. Ngokubanzi, i ncinane residual izinga yobhedu, kokukhona ixabiso shrinkage; i thinner undoqo, kokukhona ixabiso nokuwa. Noko ke, ukususela ezinkulu amancinane, iba yinkqubo ecothayo, ngoko imbuyekezo umboniso kubaluleke ngokukhethekileyo. Ukongeza, ngenxa yohlobo ebhodini nezimo ibhodi eqine eziphathekayo, imbuyekezo yalo inkalo eyongezelelekileyo ekufuneka ingqalelo.