The ntchito HDI PCB

Tiyeni tiwone bwino momwe zimakhudzira. Kuchulukitsa kwa phukusi kumatilola kufupikitsa njira zamagetsi pakati pazinthu. Ndi HDI, tidakulitsa kuchuluka kwa njira zama waya pazigawo zamkati mwa PCB, potero timachepetsa zigawo zonse zomwe zimafunikira pakupanga. Kuchepetsa kuchuluka kwa zigawo kumatha kuyika kulumikizana kambiri pa bolodi lomwelo ndikusintha mayikidwe azinthu, zingwe ndi kulumikizana. From there, we can focus on a technique called interconnect per Layer (ELIC), which helps design teams move from thicker boards to thinner flexible ones to maintain strength while allowing the HDI to see functional density.

HDI PCB rely on lasers rather than mechanical drilling. In turn, the HDI PCB design results in a smaller aperture and smaller pad size. Kuchepetsa kutseguka kunaloleza gulu laopanga kuti liwonjezere dongosolo la bolodi. Kufupikitsa njira zamagetsi ndikuthandizira kulumikizana kwakukulu kumathandizira kukhulupirika kwa mapangidwe ndikuthandizira kukonza ma siginolo. Timapeza phindu lowonjezera pakuchepetsa chifukwa timachepetsa mwayi wamavuto azolowolera ndi kutha pantchito.

Mapangidwe a HDI PCB sagwiritsa ntchito kudzera m’mabowo, koma mabowo akhungu ndikuyika m’manda. Kuyika manda mozungulira komanso molondola kumachepetsa kuthamanga kwa mbale ndikuletsa mwayi uliwonse wopindika. Kuphatikiza apo, mutha kugwiritsa ntchito mabowo otukuka kuti muthandizire kulumikizana komanso kukonza kudalirika. Kugwiritsa ntchito kwanu mapadi kungathandizenso kuchepetsa kuwonongeka kwa chizindikiro pochepetsa kuchepa kwa mtanda ndikuchepetsa zovuta zamatenda.

Kupanga kwa HDI kumafunikira mgwirizano

Kupanga kwamagetsi (DFM) kumafunikira kulingalira, kulondola kwa kapangidwe ka PCB ndi kulumikizana kosasintha ndi opanga ndi opanga. Momwe timaphatikizira HDI pantchito ya DFM, chidwi pazambiri pakupanga, kupanga, ndi kupanga zidakhala zofunikira kwambiri ndipo zovuta zamisonkhano ndi zoyeserera zimayenera kuthetsedwa. Mwachidule, kapangidwe kake, prototyping ndi kapangidwe ka HDI PCBS kumafunikira kuyanjana ndi chidwi ndi malamulo apadera a DFM omwe akugwira ntchitoyi.

Chimodzi mwazinthu zofunikira pakupanga kwa HDI (kugwiritsa ntchito laser pobowola) sichingakhale chopanda kuthekera kwa wopanga, chosonkhanitsa, kapena wopanga, ndipo chimafunikira kulumikizana molunjika molondola ndi mtundu wa makina obowoleza ofunikira. Chifukwa chakuchepa kotseguka ndikukhazikika kwa HDI PCBS, gulu lopanga limayenera kuwonetsetsa kuti opanga ndi opanga amatha kukwaniritsa zofunikira pamisonkhano, kukonzanso ndi kuwotcherera kwamapangidwe a HDI. Chifukwa chake, magulu opanga omwe amagwiritsa ntchito mapangidwe a HDI PCB ayenera kukhala aluso pamachitidwe ovuta omwe amagwiritsidwa ntchito popanga matabwa.

Dziwani zida zanu zoyang’anira dera ndi malongosoledwe

Chifukwa kupanga kwa HDI kumagwiritsa ntchito mitundu yosiyanasiyana ya ma pobowola laser, zokambirana pakati pa gulu lopanga, wopanga ndi wopanga ayenera kuganizira za mtundu wa matabwa pokambirana za kuboola. Ntchito yogulitsa yomwe imalimbikitsa mapangidwe ake atha kukhala ndi zofunikira pakukula ndi kulemera komwe kumasunthira zokambiranazo mbali ina. Mapulogalamu othamanga kwambiri angafunike zida zina kupatula muyezo FR4. Kuphatikiza apo, zisankho zamtundu wa zinthu za FR4 zimakhudza zisankho pakusankhidwa kwa makina obowolera kapena zida zina zopangira. Ngakhale makina ena amabowola mkuwa mosavuta, ena samalowa mosalekeza.

Kuphatikiza pa kusankha mtundu wazinthu zoyenera, gulu lopanga liyeneranso kuwonetsetsa kuti wopanga ndi wopanga amatha kugwiritsa ntchito makulidwe olondola ambale ndi ma plating. Pogwiritsira ntchito pobowola laser, chiŵerengero cha kabowo chimachepa ndipo kuchuluka kwa mabowo omwe amagwiritsidwa ntchito podzaza matumba kumachepa. Ngakhale mbale zowirira zimaloleza timipanda ting’onoting’ono, zofunikira pamakonzedwewo zitha kutanthauzira mbale zowonda zomwe sizingachitike m’malo ena azachilengedwe. Gulu lopanga limayenera kuwona ngati wopanga ali ndi luso logwiritsa ntchito njira ya “interconnect layer” ndikubowola mabowo pakuya kolondola, ndikuwonetsetsa kuti mankhwala omwe amagwiritsidwa ntchito popanga ma electroplating adzaza mabowo.

Kugwiritsa ntchito ukadaulo wa ELIC

DESIGN ya HDI PCBS yozungulira ukadaulo wa ELIC idathandizira gulu lokonzekera kuti lipange ma PCBS otsogola kwambiri, omwe amaphatikizira zigawo zingapo zamatayala atadzaza amkuwa padi. Chifukwa cha ELIC, mapangidwe a PCB atha kugwiritsa ntchito kulumikizana kowongoka, kovuta kofunikira pama circuits othamanga kwambiri. Chifukwa ELIC imagwiritsa ntchito tinthu tating’onoting’ono tomwe timadzaza mkuwa polumikizirana, imatha kulumikizidwa pakati pazigawo ziwiri popanda kufooketsa bolodi.

Kusankhidwa kwa chigawo kumakhudza masanjidwe

Zokambirana zilizonse ndi opanga ndi opanga zokhudzana ndi kapangidwe ka HDI ziyeneranso kuyang’ana pamakonzedwe olondola azipangizo zazitali kwambiri. Kusankhidwa kwa zigawo zikuluzikulu kumakhudza kukula kwa zingwe, malo, okwana komanso kukula kwa dzenje. Mwachitsanzo, mapangidwe a HDI PCB amakhala ndi gulu lamagulu owirikiza (BGA) ndi BGA yolowa bwino yomwe imafuna kuti pini ithawe. Zinthu zomwe zimasokoneza magetsi ndikuwonetsa kukhulupirika komanso kuwonetsetsa kwa bolodi ziyenera kuzindikirika mukamagwiritsa ntchito zida izi. Izi zikuphatikiza kukwaniritsa kudzipatula koyenera pakati pazigawo zakumtunda ndi zapansi kuti muchepetse crosstalk ndikulamulira EMI pakati pazigawo zamkati.Zida zofananira zimathandizira kupewa kupsinjika kofanana pa PCB.

Samalani ndi chizindikiro, mphamvu ndi kukhulupirika kwakuthupi

Kuphatikiza pakukweza kukhulupirika kwa siginecha, mutha kulimbikitsanso kukhulupirika kwamphamvu. Chifukwa HDI PCB imasunthira wosanjikiza pafupi ndi pamwamba, mphamvu yamphamvu imakonzedwa. Chipilala chapamwamba chimakhala ndi chosanjikiza komanso chosanjikiza magetsi, chomwe chimatha kulumikizidwa ndi chosanjikiza kudzera m’mabowo akhungu kapena ma microholes, ndikuchepetsa mabowo a ndege.

HDI PCB imachepetsa kuchuluka kwa mabowo kudzera mkatikati mwa bolodi. Kuphatikiza apo, kuchepetsa kuchuluka kwa zopopera mu ndege yamagetsi kumapereka maubwino atatu akulu:

Dera lokulirapo lamkuwa limadyetsa AC ndi DC pakadali pano mu pini yamagetsi yamagetsi

L kukana kumachepa munjira yapano

L Chifukwa chotsikira pang’ono, kusinthaku kolondola kumatha kuwerengera pini yamagetsi.

Mfundo ina yofunika pokambirana ndikusunga mzere wocheperako, kutalikirana bwino ndikufanana. Patsamba lomalizirali, yambani kukwaniritsa makulidwe amkuwa amtundu umodzi komanso mawonekedwe ofanana pakapangidwe ndikupitilira pakupanga ndi kupanga.

Kupanda malo otetezeka kumatha kubweretsa zotsalira zamafilimu nthawi yamafilimu owuma amkati, zomwe zimatha kubweretsa madera azifupi. Pansi pamizere yocheperako mzere imatha kubweretsanso mavuto panthawi yokutira chifukwa chakulowetsedwa kofooka komanso dera lotseguka. Magulu opanga ndi opanga akuyeneranso kulingalira zofananira njanji ngati njira yowongolera kutsekemera kwa ma siginecha.

Khazikitsani ndikugwiritsa ntchito malamulo apangidwe

Mawonekedwe apamwamba kwambiri amafunika magawo ang’onoang’ono akunja, kulumikizana bwino komanso malo olimbirana, motero amafunika njira ina yopangira. Njira yopangira HDI PCB imadalira kubowola laser, mapulogalamu a CAD ndi CAM, njira zowonera molunjika za laser, zida zapadera zopangira, ndi ukatswiri woyendetsa. Kupambana kwa ntchito yonse kumatengera gawo pamalamulo opanga omwe amafunikira ma impedance, kukula kwa kondakitala, kukula kwa dzenje, ndi zina zomwe zimakhudza masanjidwewo. Developing detailed design rules helps select the right manufacturer or manufacturer for your board and lays the foundation for communication between teams.