Basic Zvinhu zve PCB

Sei zvakajairika mhangura akapfeka laminates akagadzirwa? Kazhinji, mhangura-yakapfekedzwa laminate inogadzirwa nezvinhu zvakasimbiswa (girazi fiber jira, girazi rakanzwa, yakaiswa pepa fiber pepa, nezvimwewo), yakaomeswa neinnamira inonamira, yakaomeswa, yakatemwa uye yakarongedzwa isina chinhu, ndokuzofukidzwa nemhangura foil, ndiro yesimbi seforoma , uye inoumbwa patembiricha yakakwira uye kumanikidza kwakanyanya muchina chinopisa

Vakapfeka laminates

Ndedzipi mhando dzemhangura dzakapfeka laminates dzinogona kukamurwa kuve maererano nekuomarara uye kushanduka kweplate uye akasiyana ekusimbisa zvinhu? Zvinoenderana nekuomarara uye kushanduka kweplate, inogona kukamurwa kuita yakaoma mhangura yakapfeka laminate uye inochinja mhangura yakapfeka laminate. Zvinoenderana nezvinhu zvakasiyana zvekusimbisa, zvinogona kukamurwa muzvikamu zvina: mapepa akavakirwa, girazi jira rakavakirwa, rinoumbwa (CEM dzakateedzana, nezvimwewo) uye yakakosha zvinhu zvakavakirwa (zvedongo, simbi yakavakirwa, nezvimwewo). 3. Tsanangura muchidimbu kukosha kweiyo standard standard yeGG / t4721-92.

mhangura

Tsamba yekutanga yemhando yechigadzirwa, C, zvinoreva mhangura-yakapfeka foil.

Tsamba yechipiri neyechitatu zvinoratidza iyo resin inoshandiswa kune substrate;

Mavara echina neechishanu anoratidza izvo zvinosimbisa zvinoshandiswa pazvinhu zvepasi; Pakupera kwetsamba, manhamba maviri akabatana netambo pfupi yakatwasuka kumiririra nhamba yechigadzirwa cherudzi irworwo asi kuita kwakasiyana.

4. Zvidimbu zvinotevera zvinorevei? JIS, ASTM, NEMA, mil, IPC, ANSI, IEC, BS <br /> JIS Japanese Industrial Standard mauto zvimiro <br /> IPC American wedunhu kusangana uye Packaging Association zviyero <br /> ANSI American National Standards Association zviyero UL American Inishuwarenzi Association ma laboratori zviyero <br /> IEC International Electrotechnical Commission zviyero <br /> BS British Mitezo Yemaitiro Association DIN ChiGerman Standards Association zviyero VDE chiGerman zvemagetsi zviyero CSA Canadian Standards Association zviyero seAustralia Standards Institute zviyero

5. Tsanangura muchidimbu UL zviyero uye mhando uye chengetedzo zvitupa miviri? UL ndiko kutanga kwe Underwriters Laboratories. UL yakaburitsa angangoita mazana matanhatu nemakumi matanhatu magwaro ekuchengetedza. Maitiro ane chekuita nemhangura akapfeka laminates ari mune u6000.

6. Ndeapi mapoka maviri makuru endiro yemhangura maererano nenzira dzakasiyana dzekugadzirira? Chii chavanodaidzwa muIPC zviyero? Inogona kukamurwa ikave calendered mhangura foil uye electrolytic mhangura foil. Ivo vanonzi kirasi W uye kirasi E zvakateerana muIPC zviyero

7. Tsanangura muchidimbu maitiro ehunhu uye nzira dzekugadzirira dzekenduru foil uye electrolytic mhangura foil. Calendered mhangura foil inogadzirwa nekudzokorodza ndiro yemhangura. Kunge electrolytic mhangura foil, inoda kurapwa kwekuwedzera mushure mekugadzirwa kwemvere dzemakwai. Iyo yekukotama kupokana uye yakasununguka coefficient yekendendende mhangura foil yakakwira kupfuura iyo ye electrolytic mhangura foil, iyo mhangura kuchena kwakakwirira kupfuura iyo ye electrolytic mhangura foil, uye yakasviba pamusoro iri kutsetseka kupfuura iyo ye electrolytic mhangura foil.

8. Tsanangura muchidimbu hwakasiyana hunyanzvi hunyanzvi hwemagetsi emagetsi emagetsi nemabatiro ayo pazvinhu zvemhangura zvakapfeka laminate? A. Ukobvu. > B. Chitarisiko. C. Tensile simba uye kureba. Iyo yakaderera kukwirisa uye yakasimba tensile pakakwirira tembiricha inotungamira kuchinjiso cheiyo kudzikama kugadzikana uye kugadzikana kweiyo semi-conductor, kuderera kwehunhu hwemakomba esimbi muPCB uye kutsemuka kwemhangura foil kana uchishandisa PCB. D. Peel simba. Simba re peel reLP, VLP uye SLP mafirita emhangura ane yakaderera Coarseness pamapurinda akadhindwa uye multilayer mabhodhi ane mitsara yakanaka iri nani pane yeakajairika mapepa emhangura (STD neHTZ). E. Kupeta kuramba. Musiyano wezvekureba uye nekuyambuka wemagetsi emagetsi emhangura wakakwira zvishoma munzira yakatenderera kupfuura munzira yekureba. F. Kumusoro kusagadzikana. G. Kugona. > H. High tembiricha oxidation kuramba. Kuwedzera kune ari pamusoro masere makuru ehunyanzvi ehupfumi emhangura mapepa, kune mapurasitiki emhangura foil, adhesion ye UV ink, mhando yemhangura foil, electroplating coefficient uye ruvara rwemhangura foil.

9. Tsanangura muchidimbu mashandiro egirazi fiber jira? Iwo ekutanga mashandiro ezvinhu anosanganisira: warp uye weft mhando, kuruka kuwanda (huwandu hwesimbi uye weft yarns), ukobvu, huremu padanho reyuniti, hupamhi uye kutyora simba (yakasimba tensile).

10. Zvinoenderana neNEMA standard, kazhinji mapepa-akavakirwa emhangura-akapfeka laminates akapatsanurwa zvinoenderana nemabasa avo. Ndezvipi zvakajairika? Mhando dzakasiyana dzinosanganisira: XPC, xxxpc, FR-1 (xpc-fr), FR-2 (xxxpc-fr), fr-3, nezvimwe.

11. Enzanisa yakajairika bepa-yakavakirwa mhangura-yakapfeka laminate ne epoxy girazi jira rakavakirwa mhangura-yakapfeka laminate? Chigadzirwa chakagadzirwa nehuni pulp bepa kana girazi fiber jira sekusimbisa, yakaisirwa resini, yakafukidzwa nemhangura foil kune rimwe kana mativi ese uye inopisa yakatsimbirirwa.