Ukubaluleka kwee-Stiffeners kwi-2-Layer Flexible PCB Stackup

Yazisa:

Iibhodi zesekethe eziguquguqukayo eziprintiweyo (PCBs) ziye zaguqula ishishini le-elektroniki ngokwenza uyilo olubambeneyo noluguquguqukayo.Banikezela ngeenzuzo ezininzi ngaphezu koogxa babo abaqinileyo, njengolawulo oluphezulu lwe-thermal, ubunzima obuncitshisiweyo kunye nobukhulu, kunye nokuthembeka okuphuculweyo.Nangona kunjalo, xa kufikwa kwi-2-layer flexible PCB stack-ups, ukubandakanywa kwezinto eziqinisayo kuba yinto ebalulekileyo.Kule bhlog, siza kujonga ngakumbi ukuba kutheni i-2-layer flexible PCB stackups ifuna izinto eziqinileyo kwaye sixoxe ngokubaluleka kwazo ekuqinisekiseni ukusebenza kakuhle kunye nokuphila ixesha elide.

Funda malunga nokugcinwa kwePCB ebhetyebhetye:

Ngaphambi kokuba sihlolisise ukubaluleka kwee-stiffeners, kufuneka kuqala sibe nokuqonda okucacileyo ukuba yintoni i-layup ye-PCB eguquguqukayo.I-Flexible PCB Layup ibhekisa kulungiselelo oluthile lweeleya ezininzi kwibhodi yesekethe eguquguqukayo.Kwi-stackup ye-2-layer, i-PCB eguquguqukayo iqukethe iileyile ezimbini zobhedu ezihlulwe yi-flexible insulating material (ngokuqhelekileyo i-polyimide).

Kutheni i-2-layer flexible stackup ye-PCB ifuna izinto eziqinileyo?

1. Inkxaso yoomatshini:

Esinye sezizathu eziphambili zokuba kutheni i-stiffeners idingeka kwi-2-layer flexible PCB stackup kukubonelela ngenkxaso yomatshini.Ngokungafaniyo nee-PCB eziqinileyo, ii-PCB ezibhetyebhetye azinabungqongqo.Ukongeza i-stiffeners inceda ukuqinisa isakhiwo kwaye ithintele i-PCB ekugobeni okanye ukugoba ngexesha lokuphatha okanye ukuhlanganisana.Oku kubaluleke ngakumbi xa ii-PCB ezibhetyebhetye zisoloko zigotshwa okanye zigotywe.

2. Nyusa uzinzo:

Iimbambo zidlala indima ebalulekileyo ekwandiseni uzinzo lwe-2-layer flexible PCB stack-up.Ngokubonelela ngokungqongqo kwi-PCB, bancedisa ukunciphisa amathuba okuba nokwenzeka kweengxaki ezibangelwa yi-vibration, ezifana ne-resonance, ezinokuchaphazela kakubi ukusebenza kunye nokuthembeka kwesekethe.Ukongezelela, i-stiffeners ivumela ukulungelelaniswa okungcono kunye nokubhaliswa ngexesha lendibano, ukuqinisekisa ukubekwa okuchanekileyo kwamacandelo kunye nokulandelelana koqhagamshelwano.

3. Inkxaso yecandelo:

Esinye isizathu esibalulekileyo sokuba kutheni i-2-layer flex PCB stackups ifuna i-stiffeners kukubonelela ngenkxaso kumacandelo.Izixhobo zombane ezininzi zifuna amacandelo eteknoloji yokunyuswa komhlaba (SMT) ukuba axhonywe kwiiPCB ezibhetyebhetye.Ubukho be-stiffeners bunceda ukusabalalisa uxinzelelo lomatshini olwenziwa ngexesha le-soldering, ukukhusela umonakalo kumacandelo achanekileyo kunye nokuqinisekisa ukulungelelaniswa kwabo ngokuchanekileyo kwi-substrate eguquguqukayo.

4. Ukukhuselwa kwimiba yokusingqongileyo:

Ii-PCB eziguquguqukayo zihlala zisetyenziswa kwizicelo ezivezwe kwiimeko ezinzima zokusingqongileyo, ezinje ngamaqondo obushushu agqithisileyo, ukufuma, okanye ukuvezwa kweekhemikhali.Iimbambo zisebenza njengesithintelo sokukhusela, ukukhusela iisekethe ezithambileyo kumonakalo onokuthi ubangelwe yile miba yokusingqongileyo.Ukongeza, bancedisa ekuphuculeni ukuxhathisa okuguquguqukayo kwe-PCB kuxinzelelo lomatshini kunye nokuthintela ukungena kokufuma, ngokwandisa ixesha elide kunye nokuthembeka.

5. Umzila kunye neMbonakaliso yoMqondiso:

Kwi-stackup ye-PCB ye-2-layer flex, umqondiso kunye neempawu zamandla zidla ngokuqhutyelwa kwinqanaba elingaphakathi lebhodi ye-flex.Iimbambo zikhona ukugcina izithuba ezifanelekileyo kunye nokuthintela ukuphazamiseka kombane phakathi kweengqimba zobhedu zangaphakathi.Ukongeza, i-stiffeners ikhusela izalathisi ezinovakalelo zesantya esiphezulu ukusuka kwi-crosstalk kunye nokunciphisa umqondiso, iqinisekisa i-impedance elawulwayo kwaye ekugqibeleni igcina imfezeko yesiginali yesekethe.

Ukuququmbela:

Isishwankathelo, i-stiffeners iyingxenye ebalulekileyo kwi-2-layer flexible PCB stack-up njengoko idlala indima ekuboneleleni ngenkxaso yomatshini, ukuqinisa ukuzinza, ukubonelela ngenkxaso yecandelo, kunye nokukhusela kwizinto ezisingqongileyo.Zikhusela iisekethe ezichanekileyo, zigcina ingqibelelo yesignali efanelekileyo, kwaye zivumela ukudibanisa okuyimpumelelo kunye nokusebenza okuthembekileyo kwiintlobo ezahlukeneyo zezicelo.Ngokubandakanya i-stiffeners kuyilo lwe-PCB eguquguqukayo, iinjineli zinokuqinisekisa ukomelela kunye nokuphila ixesha elide kwezixhobo zabo zombane ngelixa besonwabela izibonelelo zeesekethe eziguquguqukayo.