Copper Coin PCB yeMagetsi Modules: A Thermal Management Solution

Kukwira Kupisa Zvinetso muSimba Module PCBs Dhizaini

Mamodule emagetsi anoshandisa matekinoroji eIGBT, SiC, uye GaN ave zvinhu zvakakosha mumotokari dzemagetsi, ma inverters emaindasitiri, uye magetsi anoshanda zvakanyanya. Sezvo ma frequency ekuchinjana achiwedzera uye huwandu hwemagetsi huchikwira, substrates dzechinyakare dzakadai se metal-core PCB uye direct bonded copper dzinotamburira kudzora kupisa zvinobudirira. Kupisa kwemajini kunogona kudarika miganhu yakachengeteka, zvichikanganisa kuvimbika kwemudziyo uye kupfupisa hupenyu hwekushanda.

Dambudziko guru riri pakugadzira nzira dzinoshanda dzekubvisa kupisa kubva ku semiconductor die kuenda ku outer cooling system. Mabhodhi eFR4-based haapi simba rekupisa rakakwana, nepo ceramic substrates dzakadai seDBC dzichipa kushanda kwakanaka pamutengo wakakwira uye kuoma kwekugadzira. Tekinoroji yePCB yemari yemhangura inodzora musiyano uyu nekuisa ma "high-conductivity thermal vias" ari munzvimbo yacho zvakananga pasi pemagetsi, zvichigadzira nzira dzinoshanda dzekupisa dzakamira mukati mezvivakwa zvePCB zvakajairwa.

Thermal Dhizaini Zvinodiwa zveSimba Module PCBs

Heat Flow Path muMasimba Modules

Magadzirirwo ePCB ePower module anobvisa kupisa munzira yakatarwa: semiconductor junction kusvika pakufa inonamira layer, substrate, baseplate, uye pakupedzisira kuheatsink. Interface yega yega inobatsira kudzivirira kupisa, uye substrate layer inowanzo miririra bhata rakakosha. Kune maapplication eIGBT PCB neSiC power PCB, kuderedza kuramba uku kwakakosha kuchengetedza tembiricha dzejunction mukati menzvimbo dzakachengeteka dzekushanda.

High Power Density Inoda

SiC neGaN zvishandiso zvinoshanda pamagetsi epamusoro uye ma frequency kupfuura silicon IGBTs, zvichikonzera kudzika kwekupisa kwekushisa munzvimbo diki dzinofa. Heat flux densities inogona kusvika 100-300 W/cm², ichida ma substrates ane ese ari maviri epamusoro ekupisa conductivity uye kugadzikana kwemuchina. Zvechinyakare zvePCB zvinhu hazvigone kubata aya mazinga pasina kuisa njodzi delamination kana kutiza kwekupisa.

Yakakosha Substrate Performance Criteria

Power module PCBs madhizaini anofanirwa kugutsa zvitatu zvakakosha zvinodiwa:

• Kuderera kwekushisa kwepasi -Inoshanda kupisa conduction kubva kune inoshanda zvishandiso kune inotonhorera masisitimu
• High mechanical kugadzikana -Kumirisana nekupisa bhasikoro uye vibration kusagadzikana
• Kuvimbika kwemagetsi ekudzivirira -Kudzivirira kuparara pakati pe-high-voltage traces

Copper coin PCB tekinoroji inosangana nezvido izvi nekubatanidza mhangura yemhangura neyakajairwa dielectric zvinhu.

Copper Coin PCB Mamiriro eSimba Module Applications

Embedded Copper Coin Architecture

PCB yemari yemhangura inoshandisa masirinda emhangura akakora kana mabhuroko akaiswa mukati mechimiro chebhodhi , akaiswa zvakananga pasi pemidziyo yemagetsi. Kune nzira nhatu dzekugadzira: mari dzinoiswa mumakomba akagadzirwa nemazvo, mari dzakaiswa mukati dzakanamirwa panguva yekugadzira bhodhi, uye zvivakwa zvemukati umo mari dzinoumba chikamu chemukati mechikamu. Nzira yega yega inogadzira nzira yekupisa isingapindi simba kubva kuchikamu kuenda kuheatsink.

Vertical Thermal Conductivity Enhancement

Yakajairwa PCB yemhangura yemhangura inoitisa kupisa kwakatarisana neyakaganhurwa yakatwasuka yekupisa yekuchinjisa kuburikidza nematepi dielectric layer. Mari yemhangura inogadza yakatwasuka nzira ine mhiri-chikamu nzvimbo dzinoenderana kana kudarika semiconductor tsoka. Izvi zvakanangana nekupisa kupisa kunoderedza kujunction-to-case thermal resistance ne40-60% zvichienzaniswa neyakajairwa MCPCB zvimiro, zvichigonesa kukwirira kwazvino mumagetsi module PCBs magungano.

Kuenzanisa Kwemaitiro Nechinyakare Substrates

FR4 mabhodhi anovimba nematenda emhangura akapatsanurwa neakaderera-conductivity epoxy resin, achigadzira yakakwira yekupisa kuramba. MCPCB inowedzera simbi musimboti asi inochengeta dielectric isolation layer inodzikamisa kupisa kupisa. DBC inosungirira mhangura yakananga kuceramic, ichibvisa zvidimbu zvepakati asi ichida hunyanzvi hwekugadzirisa. Copper coin PCB inosanganisa kuchinjika kwekugadzira kweFR4 nekushanda kwekupisa kunoswedera pedyo neceramic substrates.

Power Module PCBs Substrate Kuenzanisa: Copper Coin vs DBC uye MCPCB

Inodhura-Inoshanda Thermal Solution

DBC substrates dzinounza hukuru hwekupisa mashandiro asi dzinoda zvinhu zveceramic uye yakakwirira-tembiricha yekubatanidza maitiro ayo anowedzera mutengo ne3-5× zvichienzaniswa nePCB-based mhinduro. Mhangura yesimbi PCB inowana 70-80% yeDBC yekupisa kwekushanda paanenge 40-50% yemutengo, zvichiita kuti ishande kune epakati-simba maapplication uko DBC miganho isingagone kupembedzwa. Kune SiC simba PCB magadzirirwo ari pasi pe50 kW, mari yemhangura inowanzopa iyo yakakwana mutengo-kuita chiyero.

Manufacturing and Supply Chain Advantages

Yakajairwa PCB yekugadzira midziyo inobata copper coin kugadzirisa nediki maturusi ekuwedzera kune cavity machining uye kuisa mari. Uku kuwirirana kunoderedza mari yekudyara uye inobvumira varipo PCB vagadziri kuti vapinde mumusika wemagetsi module. Kugadzirwa kweDBC kunoda mitsara yekugadzira ceramic ine mashoma epasi rose kugona, kugadzira zvipingamupinyi zvekugovera panguva yekudiwa kwekuwedzera.

Kuvimbika uye Kuyedzwa Kufunga kweSimba Module PCBs

Thermal Cycling uye Interface Kutendeseka

Mamodule emagetsi anodzokororwa kupisa uye kutonhora panguva yekushanda kwakajairika, achigadzira kushushikana kwemakanika pane zvinhu zvinosangana. Iyo mhangura-kune-FR4 chisungo mumhangura coin PCB inofanira kutsungirira kupisa kwekuwedzera kusawirirana pasina delamination. Yekukurumidza kupisa bhasikoro bvunzo pa IPC-9701 chiyero chinowanzo mhanya -40 ° C kusvika + 125 ° C kwema 1000-2000 macycle kuti aone kugadzikana kwechimiro chemotokari uye maindasitiri ekushandisa.

Peel Simba uye Bonding Quality

Kubatanidzwa kwemari yemhangura kunoenderana nekuchengetedzwa kwesimba remuchina kana kuti kubatana kwenamira panguva yekunamira. Magadzirirwo esimba rePress-fit anowana simba rekubvisa 15-25 N/mm kuburikidza nekupinda mukati uye kukiya kwekuwedzera kwekupisa. Mari dzakakanyiwa dzinoshandisa epoxy prepreg yekupisa kwakanyanya dzinosvika 20-30 N/mm, dzakafanana nePCBs dzinoshandisa copper-to-core bonds. Maitiro ekuyedza anotevera zvinodiwa neIPC-6012 Class 3 zvekushandisa zvine kuvimbika kwakanyanya.

Yenguva Yakareba Thermal Performance Validation

Copper coin PCB yekupisa kupisa inogona kuwedzera nekufamba kwenguva kana kushatisa kwechimiro kukaitika nekuda kweoxidation kana kuchembera kwekunamatira. Yakawedzerwa tembiricha yekuratidzira bvunzo pa125-150 ° C kwemaawa 2000-3000 inoongorora kugadzikana kwenguva refu. Yakagadzirwa-yakanyatso dhizaini yemhangura zvimiro zvinoratidza isingasviki 5% yekupisa kwekuwedzera kwekuwedzera mushure mekuchembera, kuchengetedza kushanda mukati meyakajairwa 10-15 gore rechigadzirwa hupenyu muIGBT PCB application.

Dhizaini uye Kugadzira Mazano eCopper Coin Power Module PCBs

Coin Geometry uye Placement Strategy

Copper coin dhayamita inofanirwa kuenderana kana kudarika zvishoma simba rekushandisa tsoka, kazhinji 10-30 mm ye discrete IGBTs uye 20-50 mm yemamodule emagetsi. Coin ukobvu hunobva pa1.5-3.0 mm zvichienderana nehupamhi hwePCB ukobvu uye hunodiwa huremu hwekupisa. Kuisa mari yakananga pasi pe semiconductor die attach area kunoderedza lateral kupisa kupararira zvinodiwa uye kunoderedza tembiricha yekusangana ne 10-20°C zvichienzaniswa nekuiswa kwe offset.

Manufacturing Process Control

Yakakosha kugadzira maparamendi emagetsi module PCBs ane mari yemhangura anosanganisira:

• Cavity Machining kushivirira - ± 0.05 mm kurongeka kunoita kuti coin rikwane rakakodzera pasina mhepo
• Kugadzirira pamusoro – Mechanical abrasion kana plasma kurapwa kunoderedza kushambidzika kwekushisa kubva pa0.3-0.5 K·cm²/W kusvika 0.1-0.2 K·cm²/W
• Lamination control -Yakakwenenzverwa kudzvanywa uye tembiricha profiles inowana kuzere kusangana pasina bhodhi warpage

Interface Thermal Resistance Optimization

Iyo yakazara yekupisa nzira inosanganisira yemhangura coin interfaces nePCB laminate uye zvekunze zvikamu. Die attach layer thermal resistance inowanzo tonga pa 0.2-0.5 K/W ye IGBT modules, ukuwo coin-to-PCB interface inopa 0.1-0.3 K/W. Solder layer ukobvu pakati pechikamu uye coin pepamusoro inofanira kudzikiswa kusvika pa50-100 μm kuti iite zvakakwana.

Zvishandiso: SiC uye GaN Power Module PCBs Solutions

Magetsi Vehicle Inverter Modules

SiC simba modules muEV traction inverters inoshanda pa400-800V nekuchinja mafambiro e10-20 kHz, ichigadzira yakanyanya kupisa mitoro ye150-300W pamudziyo. Copper coin PCB inogonesa compact matatu-chikamu inverter dhizaini ine akawanda maSiC MOSFETs achigovera yakajairika ndege inopisa. Junction tembiricha inoramba iri pasi pe150 ° C kunyangwe panguva yekukwira kwepamusoro, kuve nechokwadi chekushanda kwakavimbika pamusoro pe200,000 km yehupenyu hwemotokari.

Sevha uye Telecom Power Supplies

GaN power modules ye48V DC-DC converters munzvimbo dzedata inoda ma substrates anotsigira high-frequency operation pa500 kHz-1 MHz. Copper coin power module PCBs inopa yakaderera kupisa kwekudzivirira uku ichichengetedza yakaderera parasitic inductance kuburikidza neyakagadziridzwa trace marongero. Simba remagetsi rinopfuura 60 W/in³ rinogoneka, richideredza server simba rekupa tsoka ne30-40% zvichienzaniswa nesilicon-based dhizaini paMCPCB.

Industrial Motor Drives uye Solar Inverters

Matatu-chikamu maindasitiri madhiraivha anoshandisa IGBT modules kubva pa5-50 kW anobatsirwa kubva kumhangura coin PCB yekupisa manejimendi isina DBC substrate mutengo. Solar inverters inoshanda pa97-99% kunyatsoshanda ichiri kuburitsa 50-200W sekupisa mumagetsi semiconductors. Zvimiro zvemhangura zvesimbi zvinogonesa kushanda kusina fan munzvimbo dzakavharirwa kunze nekunyatso kuitisa kupisa kune aluminium extrusion heatsinks.

Inoshanda uye Yakavimbika Simba Module PCBs Platform

Copper coin PCB tekinoroji inopa yakaringana kupisa kwekuita uye kuita kwekugadzira kwemazuva ano simba semiconductor modules. Nekugadzira nzira dzenzvimbo dzepamusoro-soro mukati mezvimiro zvePCB zvakajairwa, nzira iyi inowana 70-80% yeDBC yekupisa kwekuita pamutengo wakaderera zvakanyanya uye hukuru hwekugadzira shanduko. Iyo tekinoroji inoratidza kunyatsoshanda kune SiC simba PCB uye GaN kunyorera mu5-50 kW renji, uko hupfumi hweDBC hunoramba huchinetsa nepo kudiwa kwemafuta kuchipfuura kugona kweMCPCB.

Sezvo simba remagetsi richiramba richiwedzera nehupamhi-bandgap semiconductors, copper coin PCB inopa scalable chikuva icho PCB vagadziri vanogona kuita pasina nyanzvi yekudyara michina. Iko kusanganiswa kwekuvimbika kwakaratidza kuburikidza nekupisa bhasikoro kusimbiswa, kuenderana neyakajairwa magungano maitiro, uye inodhura-inoshanda zvinzvimbo tekinoroji yekoini semhinduro inoshanda yemotokari, maindasitiri, uye inovandudzwa simba remagetsi emagetsi.

Highleap Electronics Power Module PCBs Kugona

Neruzivo rwemakore anopfuura gumi nemashanu mukugadzira PCB yepamusoro uye kugadzira mamodule emagetsi, Highleap Electronics inopa mhinduro dzakakwana dzePCB dzemari yemhangura:

• Thermal simulation uye dhizaini optimization -FEA modhi yekuona mashandiro emafuta isati yagadzirwa
• Precision copper embedding - Cavity machining kushivirira kune ± 0.05 mm ine inodzorwa lamination maitiro
• Full turnkey musangano masevhisi -Chikamu chekutsvaga, kuiswa kweSMT, uye kuyedzwa kwekupedzisira kweIGBT, SiC, uye GaN modules.
• Kuongororwa kwehutano hwekugadzirisa -Thermal cycling paIPC-9701, peel simba kuyedzwa, uye kwenguva refu kuvimbika ongororo.

Bata timu yedu yeinjiniya kuti mukurukure kuti tekinoroji yePCBs ye copper coin power module inogona sei kugadzirisa manejimendi ekupisa kwekushandisa kwako kunotevera kwe high-power.