Sensor ya PCB Yokhala ndi Bowo la Hafu
Bowo Lokhala ndi Mabowo Okhala ndi Mabowo Ozungulira
Bowo lokhala ndi theka lokhala ndi pulasitiki, lomwe limadziwikanso kuti dzenje lokhala ndi pulasitiki, ndi kapangidwe kamene kamapangidwa m'mphepete mwa PCB ngati m'mphepete mwa pulasitiki. Kapangidwe kake kamayamba ndi kupanga ma vias okhazikika kenako pogwiritsa ntchito chida chakuthwa chogayira kuti adule gawo la dzenjelo, ndikusiya theka lake lonse.
Kapangidwe kameneka ndi njira yabwino komanso yosavuta yolumikizira mbali, yomwe nthawi zambiri imagwiritsidwa ntchito m'mabwalo a zizindikiro komanso kwambiri polumikizirana pakati pa bolodi ndi bolodi. Mabowo a theka opakidwa amatha kugulitsidwa mwachindunji m'mphepete mwa bolodi lalikulu, zomwe zimapangitsa kuti pasakhale zolumikizira ndi malo. Mwachitsanzo, ma module a Bluetooth kapena Wi-Fi okhala ndi mabowo a theka opakidwa amatha kugulitsidwa mosavuta pa bolodi lalikulu ngati zigawo chimodzi, kukwaniritsa zofunikira zina popanda kufunikira mawaya ena, zomwe zimapangitsa kuti pakhale msonkhano woyera komanso wosavuta.
Ngakhale kuti mabowo opangidwa ndi theka la zibowo amathandiza kusungunula ma board-to-board, amaonedwa kuti ndi ukadaulo wapadera mumakampani opanga ma PCB ndipo amabwera ndi mtengo wokwera. Kuphatikiza apo, nthawi yopangira ma PCB awa ndi yayitali.
Makhalidwe a Sensor Half-Hole PCBs
1. Kapangidwe Kakang'ono:
Ma PCB okhala ndi mabowo theka a masensa apangidwa kuti akhale ang'onoang'ono, zomwe zimathandiza kuti malo agwiritsidwe ntchito bwino m'magawo ang'onoang'ono a masensa agwiritsidwe ntchito bwino. Kuphweka kumeneku n'kofunika kwambiri pophatikiza masensa m'malo opapatiza mkati mwa zipangizo.
2. Kulumikizana Kogwira Mtima:
Kapangidwe ka theka la dzenje kamathandiza kulumikizana kodalirika pakati pa bolodi ndi bolodi, komwe ndikofunikira kwambiri pa masensa omwe amafunika kulumikizana ndi zida zina zamagetsi kapena mabolodi. Kapangidwe kameneka kamachepetsa kufunikira kwa zolumikizira zina ndipo kumathandiza kuti njira yopangira ikhale yosavuta.
3. Kukhulupirika Kwambiri kwa Chizindikiro:
Mabowo a theka amathandiza kusunga umphumphu wa chizindikiro mwa kuchepetsa mtunda pakati pa njira za chizindikiro ndikuchepetsa kusokoneza. Izi ndizofunikira kwambiri kwa masensa omwe amadalira kutumiza deta molondola kuti agwire ntchito.
4. Kupanga Kotsika Mtengo:
Pogwiritsa ntchito mabowo a theka, opanga nthawi zambiri amatha kuchepetsa ndalama zokhudzana ndi zolumikizira ndi kusonkhanitsa. Izi zimachitika chifukwa cha mphamvu yolumikizira mwachindunji ya mabowo a theka, zomwe zimapangitsa kuti njira yopangira ikhale yosavuta.
5. Kukonza Malo:
Kugwiritsa ntchito ma half-holes kumathandiza kuti malo a PCB aziyang'aniridwa bwino. Izi ndizothandiza pakugwiritsa ntchito masensa komwe malo ndi ochepa ndipo kapangidwe kake kogwira ntchito ndikofunikira kwambiri pakugwira ntchito bwino komanso magwiridwe antchito.
6. Ntchito Zosiyanasiyana:
Ma PCB a sensor half-hole ndi osinthika ndipo angagwiritsidwe ntchito m'mitundu yosiyanasiyana ya masensa, kuphatikizapo masensa oteteza chilengedwe, masensa oyenda, ndi masensa ojambula zithunzi. Kapangidwe kawo kamagwirizana ndi kukula kosiyanasiyana kwa masensa ndi zofunikira pakuyikira.
7. Kudalirika Kwambiri:
Ma PCB okhala ndi mabowo theka amawonjezera kudalirika kwa masensa popereka njira yolumikizira yolimba. Izi zimachepetsa chiopsezo cha kulephera kwa makina ndikuwonjezera kulimba kwa masensa.
Kapangidwe ka Ma PCB Opangidwa ndi Half-Hole
Kukula Kocheperako kwa Hafu ya Mabowo
Kukula kochepa komwe kungapangidwe kwa theka la mabowo ndi 0.5mm, bola ngati dzenjelo lili pakati pa PCB. Izi zikutanthauza kuti payenera kukhala dera la 0.25mm la mkuwa mkati mwa PCB kuti zitsimikizire kuti dzenjelo ndi lolimba. Popanda dera lapakati la mkuwa, mkuwa womwe uli pamakoma a dzenjelo ukhoza kusweka panthawi yopanga, zomwe zimapangitsa kuti mabowo osaphimbidwa ndi kupangitsa kuti chinthu chomaliza chisagwiritsidwe ntchito.
Kutalikirana kwa Mabowo Awiri
Pa ma PCB okhala ndi mabowo a theka, m'mimba mwake wa mabowo omalizidwa ndi 0.5mm. Panthawi yopanga, m'mimba mwake wa mabowo uyenera kulipidwa. Pambuyo polipira, mtunda pakati pa mabowo a theka uyenera kukhala osachepera 0.35mm. Chifukwa chake, mtunda wopangidwira pakati pa mabowo a theka uyenera kukhala ≥0.45mm. Ma solder pads ofanana a mabowo a theka ayenera kulipidwa kuti atsimikizire kuti ndi ≥0.25mm. Kuphatikiza apo, payenera kukhala mlatho wa solder mask pakati pa mipata ya solder mask ndi ma solder pads a mabowo a theka.
Kupanga Ma Panelization a Hafu-Hole
Poika ma PCB okhala ndi mabowo a theka, ndikofunikira kusiya mtunda wozungulira mabowo a theka kuti zithandize njira yoyendetsera ndi kugaya. Tsatanetsatane uwu nthawi zambiri umanyalanyazidwa panthawi yopanga chifukwa mainjiniya ochepa okha ndi omwe adapita ku mafakitale a PCB kuti amvetse momwe mabowo a theka amapangira. Chifukwa chake, zinthu zokhala ndi mabowo a theka nthawi zina zimayikidwa pakhoma popanda mtunda woyenera, pogwiritsa ntchito njira zodziwika bwino za V-CUT. Izi zingayambitse kuti mkuwa womwe uli pa mabowo a theka uchotsedwe ndi tsamba la V-CUT, zomwe zimapangitsa kuti mabowo osaphimbidwa ndi kupangitsa kuti chinthucho chisagwiritsidwe ntchito.
Mafotokozedwe a Kapangidwe ka PCB ya Half-Hole
A. Mtunda kuchokera ku Half-Hole Pad Edge kupita ku Board Edge: ≥1mm
B. M'mimba mwake wa Hafu ya Mabowo: ≥0.6mm
C. Kutalikirana Pakati pa Mabowo Okhala ndi Hafu: ≥0.6mm
D. Mphete Yogulitsira Mbali Imodzi ya Hafu ya Bowo: ≥0.25mm (osachepera 0.18mm)
Mafotokozedwe a PCB Panelization a Half-Hole
Kukula kwa Bolodi Lililonse: Kutalika ndi m'lifupi mwa PCB yokhala ndi dzenje la theka kuyenera kukhala >10mm (izi zikugwiranso ntchito ku mabolodi okhala ndi ma panelo). Monga mabolodi wamba, ma PCB okhala ndi dzenje la theka amatha kuikidwa pa panelo pogwiritsa ntchito njira za V-CUT ndi njira zoyendetsera ma tab.
Chithandizo cha M'mphepete: M'mphepete mwa PCB yokhala ndi dzenje la theka simungathe kupangidwa pogwiritsa ntchito V-CUT, chifukwa V-CUT imatha kuchotsa mkuwa.
Momwe Mungapangire Ma PCB Okhala ndi Zibowo Zochepa
Tsegulani Mapulogalamu Opanga Ma PCB: Yambitsani pulogalamu yanu yopangira ma PCB ndikupanga pulojekiti yatsopano ya PCB.
Sankhani Malo Okhala ndi Mabowo Awiri: Mu chosinthira mawonekedwe, sankhani malo omwe mukufuna kuwonjezera mabowo awiri.
Onjezani Vias: Mu chosinthira mawonekedwe, sankhani njira ya "Onjezani Via" kapena chinthu chofanana nacho.
Set Via Parameters: Konzani kukula kwa via ndi malo ake. Onetsetsani kuti via yakhazikitsidwa kuti ikhale theka la dzenje, kutanthauza kuti ili ndi utoto wa mkuwa mbali imodzi yokha.
Sinthani Malo ndi Kukula: Sinthani malo ndi kukula kwa via ngati pakufunika kuti mukwaniritse zofunikira pa kapangidwe kanu.
Zogulitsa Zogwiritsa Ntchito Ma PCB Okhala ndi Zibowo Zochepa
Ma module a Bluetooth: Amagwiritsidwa ntchito kwambiri m'zida zosiyanasiyana zolumikizirana opanda zingwe kuti azitha kulumikizana.
Ma module a Wi-Fi: Amapezeka mu zamagetsi monga ma laputopu ndi ma rauta kuti azitha kulumikizana ndi intaneti yopanda zingwe.
Zipangizo Zovalidwa: Monga ma watchwatch ndi zotsatirira masewera olimbitsa thupi, komwe kusunga malo ndi kulumikizana bwino pakati pa board ndi board ndikofunikira.
Ma RFID Tags: Amagwiritsidwa ntchito mu njira zotsatirira ndi kuzindikira, ndipo amapindula ndi mapangidwe ang'onoang'ono komanso ogwira mtima a PCB.
Zipangizo Zing'onozing'ono za IoT: Zipangizozi zimakonda masensa anzeru ndi zipata zazing'ono zomwe zimafuna kulumikizana kwapang'ono komanso kogwira mtima.
Ma module a kamera: Amagwiritsidwa ntchito m'mafoni ndi zida zina zojambulira zithunzi, komwe malo ndi kulumikizana kwa bolodi ndizofunikira kwambiri.
Masensa a Magalimoto: Masensa ang'onoang'ono omwe amagwiritsidwa ntchito m'magalimoto poyang'anira ndi kulamulira makina.
PCB Yokhala ndi Bowo Lalifupi
Ma PCB okhala ndi mabowo theka amakhala ndi mizere ya mabowo obooledwa m'mphepete mwa PCB. Mabowo awa akamakutidwa ndi mkuwa, m'mphepete mwake mumadulidwa, zomwe zimapangitsa kuti azioneka ngati theka m'mphepete mwake. Kapangidwe kameneka kamapatsa m'mphepete mwa PCB mawonekedwe a pamwamba ngati mkuwa.
Mu ma PCB amtundu wa module, mabowo a theka nthawi zambiri amaphatikizidwa kuti athandize kusungunula. Chifukwa cha kukula kochepa komanso zofunikira zosiyanasiyana za ma module, mabowo a theka nthawi zambiri amaikidwa m'mphepete mwa PCB. Panthawi yoyendetsera, theka la m'mphepete limadulidwa, zomwe zimasiya mabowo a theka okha omwe amawonekera pa PCB.
Njira yopangirayi imapangitsa kuti kusungunula kukhale kosavuta komanso kumagwirizana ndi zosowa za ma module ang'onoang'ono komanso ogwira ntchito zambiri.
Mavuto a Kupanga Ma PCB Okhala ndi Zibowo Zochepa
Pakukonza mabowo a theka, ngati ma burrs a mkuwa akhalabe mkati mwa mabowo achitsulo, zingayambitse mavuto monga malo ofooka a solder, kusungunula kozizira, ndi ma short circuits pakati pa ma pini, makamaka m'mizere ya ma half-bowo komwe malo ndi ochepa kwambiri ndipo nthawi zambiri amakhala ndi ma short circuits. Panthawi yokonza ma routing, mavuto monga mkuwa wokwezedwa pamakoma a mabowo ndi ma residual burrs ndi ofala, nthawi zambiri chifukwa cha liwiro losakwanira la zida zoyendetsera ma routing, kulumikizana kosakwanira pakati pa makoma a mkuwa ndi mabowo, komanso makulidwe a mkuwa wambiri omwe amachititsa kuti kudula kusakwane.
Kuphatikiza apo, pankhani ya mabowo a theka opangidwa ndi zitsulo, kusinthasintha kwa kukula kwa PCB, kulondola kwa kubowola, ndi kulondola kwa mapangidwe kungayambitse kusiyana kwakukulu kwa kukula pakati pa mabowo a theka mbali zonse ziwiri za chipangizo chomwecho. Kusiyana kumeneku kumabweretsa mavuto akulu kwa makasitomala panthawi yosokera ndi kusonkhanitsa.
Zifukwa Zowonjezerera Mtengo wa Ma PCB Okhala ndi Zibowo Zochepa
Mabowo a theka amakhala ndi njira yapadera yopangira. Kuti muwonetsetse kuti pali mkuwa mkati mwa mabowo, m'mbali mwake muyenera kuyendetsedwa pang'ono panthawi yonseyi. Kuphatikiza apo, ma PCB a theka nthawi zambiri amakhala ang'onoang'ono kwambiri, zomwe zimapangitsa kuti mtengo uwonjezere. Chifukwa chake, mapangidwe osakhala a muyezo amabwera ndi mtengo wosakhala wa muyezo.