I-PCB Prototyping yezicelo zobushushu obuphezulu

Yazisa:

Kwihlabathi lanamhlanje elihambele phambili kwezobuchwepheshe, iiBhodi zeSekethe eziShicileleyo (PCBs) zizinto ezibalulekileyo ezisetyenziswa kwizixhobo zombane ezahlukeneyo. Ngelixa i-PCB prototyping iyinto eqhelekileyo, iba ngumngeni ngakumbi xa ujongana nezicelo zobushushu obuphezulu. Ezi ndawo zikhethekileyo zifuna ii-PCB eziqinileyo nezithembekileyo ezinokumelana nobushushu obugqithisileyo ngaphandle kokuchaphazela ukusebenza.Kule post yebhlog, siza kuphonononga inkqubo ye-PCB prototyping yezicelo zobushushu obuphezulu, sixoxa ngengqwalasela ebalulekileyo, imathiriyeli, kunye neendlela ezifanelekileyo.

Ubushushu obuphezulu bePCB imingeni yoMfanekiso:

Ukuyila kunye nokulinganisa iiPCB zezicelo zobushushu obuphezulu kunika imingeni eyodwa. Izinto ezifana nokukhethwa kwezinto eziphathekayo, ukusebenza kwe-thermal kunye nombane kufuneka kuhlolwe ngokucophelela ukuze kuqinisekiswe ukusebenza kakuhle kunye nokuphila ixesha elide. Ukongezelela, ukusebenzisa izinto ezingalunganga okanye ubuchule bokuyila kunokukhokelela kwimiba ye-thermal, ukuthotywa komqondiso, kunye nokungaphumeleli phantsi kweemeko eziphezulu zokushisa. Ke ngoko, kubalulekile ukulandela amanyathelo achanekileyo kwaye uqwalasele izinto ezithile eziphambili xa uprototyping iiPCB zezicelo zobushushu obuphezulu.

1. Ukukhethwa kwezinto:

Ukukhetha izinto ezibonakalayo kubalulekile kwimpumelelo ye-PCB prototyping yezicelo zobushushu obuphezulu. Umgangatho we-FR-4 (i-Flame Retardant 4) i-epoxy-based laminates kunye ne-substrates ayinakumelana ngokwaneleyo nokushisa okukhulu. Endaweni yoko, cinga ukusebenzisa izixhobo ezikhethekileyo ezifana ne-polyimide-based laminates (ezifana ne-Kapton) okanye i-ceramic-based substrates, enika uzinzo oluhle kakhulu lwe-thermal kunye namandla omatshini.

2. Ubunzima kunye nobunzima bobhedu:

Ukusetyenziswa kweqondo lokushisa eliphezulu kufuna ubunzima obuphezulu bobhedu kunye nobukhulu bokunyusa ukuhanjiswa kwe-thermal. Ukongeza ubunzima bobhedu abuphuculi kuphela ukutshatyalaliswa kobushushu kodwa kunceda ukugcina ukusebenza kombane okuzinzileyo. Nangona kunjalo, khumbula ukuba ubhedu olutyebileyo lunokubiza kakhulu kwaye ludale umngcipheko ophezulu wokulwa ngexesha lenkqubo yokuvelisa.

3. Ukhetho lwamacandelo:

Xa ukhetha amacandelo e-PCB yobushushu obuphezulu, kubalulekile ukukhetha amacandelo anokumelana nobushushu obugqithisileyo. Amacandelo asemgangathweni asenokungafaneleki kuba imida yawo yobushushu ihlala iphantsi kunezo zifunekayo kwizicelo zobushushu obuphezulu. Sebenzisa amacandelo alungiselelwe iindawo eziphezulu zokushisa, ezifana ne-high-temperature capacitors kunye ne-resistors, ukuqinisekisa ukuthembeka kunye nokuphila ixesha elide.

4. Ulawulo lobushushu:

Ulawulo olululo lwe-thermal lubalulekile xa kuyilwa iiPCB kwizicelo zobushushu obuphezulu. Ukuphumeza ubuchule ezifana iisinki ubushushu, vias thermal, kunye ubeko ubhedu elungeleleneyo kunokunceda ukutshabalalisa ubushushu kunye nokuthintela iindawo ezishushu zasekuhlaleni. Ukongezelela, ukuqwalasela ukubekwa kunye nokuqhelaniswa kwezinto ezivelisa ubushushu kunokunceda ukwandisa ukuhamba komoya kunye nokusabalalisa ubushushu kwi-PCB.

5. Vavanya kwaye uqinisekise:

Ngaphambi kweprototyping yobushushu obuphezulu bePCB, uvavanyo olungqongqo kunye nokuqinisekiswa kubalulekile ukuqinisekisa ukusebenza kunye nokuqina koyilo. Ukuqhuba uvavanyo lokuhamba ngebhayisikile eshushu, olubandakanya ukuveza iPCB ekutshintsheni kobushushu obugqithisileyo, kunokulinganisa iimeko zokwenyani zokusebenza kunye nokunceda ukuchonga ubuthathaka obunokubakho okanye ukusilela. Kukwabalulekile ukwenza uvavanyo lombane ukuqinisekisa ukusebenza kwePCB kwiimeko zobushushu obuphezulu.

Ukuququmbela:

I-PCB prototyping yezicelo zobushushu obuphezulu ifuna ukuqwalaselwa ngononophelo kwemathiriyeli, ubuchule bokuyila, kunye nolawulo lobushushu. Ukujonga ngaphaya kwendawo yemveli yezinto ze-FR-4 kunye nokuhlola ezinye iindlela ezifana ne-polyimide okanye i-ceramic-based substrates inokuphucula kakhulu ukuqina kwe-PCB kunye nokuthembeka kumaqondo okushisa aphezulu. Ukongezelela, ukukhetha amacandelo afanelekileyo, kunye nesicwangciso esisebenzayo sokulawula i-thermal, kubalulekile ekufezekiseni ukusebenza kakuhle kwiindawo eziphezulu zokushisa. Ngokuphumeza ezi ndlela zilungileyo kunye nokuqhuba uvavanyo olucokisekileyo kunye nokuqinisekiswa, iinjineli kunye nabaqulunqi banokwenza ngempumelelo iiprototypes zePCB ezinokumelana nobunzima bezicelo zobushushu obuphezulu.