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1、 PCB封装设计规范 PCB封装设计规范文件编号: 受控标识: 版本状态: 发放序号: 编制: 日期:审核: 日期:批准: 日期: 目 录1、目 的32、适用范围43、职 责44、术语定义45、引用标准46、PCB封装设计过程框图47、SMC(表面组装元件)封装及命名简介58、SMD(表面组装器件)封装及命名简介69、设计规则610、PCB封装设计命名方式711、PCB封装放置入库方式712、封装设计分类712.1、矩形元件(标准类)712.2、圆形元件(标准类)1612.3、小外形晶体管(SOT)及二极管(SOD)(标准类)1812.4、集成电路(IC)(标准类)2412.5、微波器件(非标
2、准类)3412.6、接插件(非标准类)361、目的本规范是为电子元器件的表面属性提供模版信息,即为表面器件焊盘图形设计提供模版尺寸,外形以及公差,以便检查和测试,确保表面装配产品的可靠性,从而规范电子元器件的PCB封装设计2、适用范围本规范适用于研发中心PCB部所有PCB封装的设计。3、职 责PCB封装库评审由PCB部门经理与工艺部门经理共同评审完成,特殊封装除外。PCB部门专职PCB封装设计人员负责PCB封装库的设计、评审和更新。4、术语定义PCB(Print circuit Board):印刷电路板Footprint:封装IC(integrated circuits):集成电路SMC(Su
3、rface Mounted Components):表面组装元件SMD(Surface Mounted Devices):表面组装器件5、引用标准下列标准包含的条文,通过在本规范中引用而构成本规范的条文。在规范归档时,所示版本均为有效。所有规范都会被修订,使用本规范的各方应探讨,使用下列标准最新版本的可能性。IPC Batch Footprint Generator ReferenceIPC-7351 Generic Requirements for Surface Mount Design and Land Pattern StandardIPC-SM-782A Surface Mount
4、Design and Land Pattern Standard表面组装技术基础与可制造性设计6、PCB封装设计过程框图器件部SCH封装库设计完成后,把DATASHEET输入给PCB部封装设计人员设计PCB器件封装评审载入PCB封装库更新上传封装设计人员把PCB封装定义名称返回给器件部SCH封装设计人员与之统一通过不通过 图 6.1 PCB封装设计过程框图7、SMC(表面组装元件)封装及命名简介SMC主要是指无源元件的机电元件,包括各种电阻器、陶瓷电容器、铝电解电容器、电感器、磁珠、陶瓷振子、滤波器、电阻网络、电容网络、微调电容器、电位器、各种开关、继电器、连接器等,封装形状有矩形、圆柱形、复
5、合形和异形。SMC的封装是以元件的外形尺寸来命名的,其标称以3位或4位数字来表示,SMC的封装命名及标称已经标准化。SMC常用外形尺寸长度和宽度命名,来标志其外形大小,通常有公制(mm)和英制(inch)两种表示方法。公制(mm)/英制(inch)转换式如下:25.4mm英制(inch)尺寸=公制(mm)尺寸例如:0805(0.08inch0.05inch)英制转换为公制元件长度=25.4mm0.08=2.0322.0mm元件宽度=25.4mm0.05=1.271.25mm0805的公制表示法为2125(2.0mm1.25mm)8、SMD(表面组装器件)封装及命名简介SMD主要是指有源器件,包
6、括半导体分立器件(二极管、三极管和半导体特殊器件)、集成电路。SMD是贴在PCB表面的,而不是插在PCB通孔中;SMD的体积小、重量轻、速度快;SMD可以两面贴装,焊接质量好、可靠性高。SMD封装命名是以器件的外形命名的。SMD的引出脚有羽翼形(GULL)、J形、球形、和无引线引线框架形。SMD的封装形式有:SOP(Small Outline Packages)羽翼形小外形塑料封装,其中包括SOIC(Small Outline Integrated Circuits)小外形集成电路,SSOIC(Shrink Small Outline Integrated Circuits)缩小型小外形集成电
7、路,TSOP(Thin Small Outline Package)薄型小外形封装;SOJ(Small Outline Integrated Circuits) ,J形小外形塑料封装;PLCC(Plastic Leaded Chip Carriers)塑封J形引脚芯片载体;BGA(Ball Grid Array/Chip Scale Package)球形栅格阵列,根据材料和尺寸可分为六个类型:PBGA(Plastic Ball Grid Array)塑料封装BGA,CBGA(Ceramic Ball Grid Array)陶瓷封装BGA,CCGA(Ceramic Column BGA)陶瓷柱状
8、封装BGA,TBGA(Tape Ball Grid Array)载带BGA,BGA(微型BGA)芯片级封装,FC-PBGA(Flip Chip Plastic Ball Grid Array)倒装芯片塑料封装BGA;CSP(Chip Scale Package)又称BGA;QFN(Quad Flat No-lead)四方形扁平无引线引线框架封装。9、设计规则由RF或控制人员预先给出需要设计PCB封装器件的DATASHEET至PCB封装设计人员,同时转给原理图封装设计人员同步设计原理图封装,同步设计完成后需统一其命名方式,即PCB封装的命名与原理图封装载入PCB设计时的封装命名一致,否则无法导入
9、PCB设计。设计PCB时,必须使用我司标准的PCB封装库,不得自己创建PCB封装库。PCB封装库在不同的项目设计里同种类型器件必须使用同种类型的PCB封装库,保证PCB封装库的唯一性与统一性,从而提高设计的正确率。非标准且无明显方向性的PCB封装有输入输出要求的必须在相应管脚增加输入(IN)输出(OUT)标识,有极性的器件PCB封装必须增加极性标识;标准且有方向性的PCB封装必须给出1Pin标识。有引脚序号标识的器件按DATASHEET标明PCB封装焊盘的引脚顺号,DATASHEET引脚序号标识含糊不清或根本没有标识引脚序号的按IC管脚焊盘序号来标识,即逆时针顺序标识。同一个PCB封装里不能有
10、相同的引脚序号出现。PCB封装保存时封装信息包含PCB封装“命名”,该封装“高度”等,如有其他的可增加“描述”等。属IPC标准封装的参考IPC标准封装来设计PCB封装库;除IPC标准封装以外,DATASHEET有推荐封装的采用推荐封装设计PCB封装,特殊情况除外;非标准封装采用我司规定的标准来设计PCB封装。所有封装均用PAD设计焊盘;用PAD或keepout层设计定位孔;丝印与PADS的距离10mil。设计PCB封装外形丝印要求其自身的最大尺寸,IC除外。设计IC PCB封装自动生成的PAD上有过孔(VIA)时,其过孔的内径为0.25mm,外径为1520mil。10、PCB封装设计命名方式属
11、于规则封装命名方式的统一用IPC的封装命名。属于不规则的单一的命名统一用其型号的全称命名。设计人员完成PCB封装设计后,要及时与原理图封装设计同步。11、PCB封装放置入库方式目前我司PCB封装库分类有:标识.lib,SMA .lib,电位器.lib,电感.lib,电容.lib,晶体管.lib,电源.lib,开关.lib,插件.lib,微波.lib,功放管.lib,芯片.lib,时钟.lib等等,设计人员根据DATASHEET所属类型自行判断放置入库,如分类不够或不全可适当增减种类,其中设计人员可设计一个“新器件.lib”类别以放置待评审类型或有疑问的PCB封装。PCB封装放置入库时以它封装本
12、身的1pin中心或器件本身中心点为原点放置。12、封装设计分类 电阻电容,晶体管,集成电路(IC),功放管,隔离器与环形器,耦合器,接插件等,分为标准类与非标准类。12.1、矩形元件(标准类)贴片电阻封装实际尺寸:图12.1 贴片电阻封装实际尺寸表12.1贴片电阻封装实际尺寸mm(in)componentidentifierLSWTHminmaxminmaxminmaxminmaxmax1005(0402)1.001.100.400.700.480.600.100.300.401608(0603)1.501.700.701.110.700.950.150.400.602012(0805)1.8
13、52.150.551.321.101.400.150.650.653216(1206)3.053.351.552.321.451.750.250.750.713225(1210)3.053.351.552.322.342.640.250.750.715025(2010)4.855.153.153.922.352.650.350.850.716332(2512)6.156.454.455.223.053.350.350.850.71贴片电阻封装推荐尺寸:图12.2贴片电阻封装推荐尺寸表12.2贴片电阻封装推荐尺寸RLP No.Component Identifier mm(in)Z(mm)G(m
14、m)X(mm)Y(mm)C(mm)Placementgridrefref100A1005(0402)2.200.400.700.901.302X6101A1608(0603)2.800.601.001.101.704X6102A2012(0805)3.200.601.501.301.904X8103A3216(1206)4.401.201.801.602.804X10104A3225(1210)4.401.202.701.602.806X10105A5025(2010)6.202.602.701.804.406X14106A6332(2512)7.403.803.201.805.608X16贴
15、片电容封装实际尺寸:图12.3 贴片电容封装实际尺寸表12.3 贴片电容封装实际尺寸Component Identifiermm(in)LSWTHminmaxminmaxminmaxminmaxmax1005(0402)0.901.100.300.650.400.600.100.300.601310(0504)1.021.320.260.720.771.270.130.381.021608(0603)1.451.750.450.970.650.950.200.500.852012(0805)1.802.200.301.111.051.450.250.751.103216(1206)3.003.
16、401.502.311.401.800.250.751.353225(1210)3.003.401.502.312.302.700.250.751.354532(1812)4.204.802.303.463.003.400.250.951.354564(1825)4.204.802.303.466.006.800.250.951.10贴片电容封装推荐尺寸:图12.4 贴片电容封装实际尺寸表12.4 贴片电容封装实际尺寸RLP No.Component Identifiermm(in)Z(mm)G(mm)X(mm)Y(mm)C(mm)Placementgridrefref130A1005(040
17、2)2.200.400.700.901.302X6131A1310(0504)2.400.401.301.001.404X6132A1608(0603)2.800.601.001.101.704X6133A2012(0805)3.200.601.501.301.904X8134A3216(1206)4.401.201.801.602.804X10135A3225(1210)4.401.202.701.602.806X10136A4532(1812)5.802.003.401.903.908X12137A4564(1825)5.802.006.801.903.9014X12贴片电感封装实际尺寸:
18、图12.5 贴片电感封装实际尺寸表12.5 贴片电感封装实际尺寸ComponentIdentifier(mm)L(mm)S(mm)W1(mm)W2(mm)T(mm)H1(mm)H2(mm)minmaxminmaxminmaxminmaxminmaxmaxmax2012 chip1.702.301.101.760.601.20-0.100.301.20-3216 chip2.903.501.902.631.301.90-0.200.501.90-4516 chip4.204.802.603.530.601.20-0.300.801.90-2825 prec.w/w2.202.800.901.62
19、1.952.112.102.540.370.652.290.073225 prec.w/w2.903.500.901.831.401.80-0.501.002.000.504532 prec.w/w4.204.802.203.133.003.40-0.501.002.800.505038 prec.w/w4.354.952.813.512.462.623.413.810.510.773.800.763225/3230 molded3.003.401.602.181.802.002.302.700.400.702.400.514035 molded3.814.320.811.601.201.50
20、2.923.181.201.502.671.274532 molded4.204.802.303.152.002.203.003.400.650.953.400.505650 molded5.305.503.304.323.804.204.705.300.501.005.801.008530 molded8.258.765.256.041.201.502.923.181.201.502.671.27贴片电感封装推荐尺寸:图12.6 贴片电感封装推荐尺寸表12.6贴片电感封装推荐尺寸RLP No.ComponentIdentifier(mm)Z(mm)G(mm)X(mm)C(mm)Y(mm)Pl
21、acementgridrefrfe1602012 chip3.001.001.002.001.004X81613216 chip4.201.801.603.001.206X101624516 chip5.802.601.004.201.604X121632825 Prec3.801.002.402.401.406X101643225 Prec4.601.002.002.801.806X101654532 Prec5.802.203.604.001.808X141665038 Prec5.803.002.804.401.408X141673225/3230 Molded4.401.202.202
22、.801.606X101684035 Molded5.401.001.403.202.208X121694532 Molded5.801.802.403.802.008X141705650 Molded6.803.204.005.001.8012X161718530 Molded9.805.001.407.402.408X22钽电容封装实际尺寸:图12.7 钽电容封装实际尺寸图12.7 钽电容封装实际尺寸ComponentIdentifier(mm)L(mm)S(mm)W1(mm)W2(mm)T(mm)H1(mm)H2(mm)minmaxminmaxminmaxminmaxminmaxminm
23、ax32163.003.400.801.741.171.211.401.800.501.100.701.8035283.303.701.102.042.192.212.603.000.501.100.702.1060325.706.302.503.542.192.212.903.501.001.601.002.8073437.007.603.804.842.392.414.004.601.001.601.003.10钽电容封装推荐尺寸:图12.8钽电容封装推荐尺寸表12.8钽电容封装推荐尺寸RLP No.ComponentIdentifier(mm)Z(mm)G(mm)X(mm)Y(mm)C(
24、mm)Placementgridrefref180A32164.800.801.202.002.806X12181A35285.001.002.202.003.008X12182A60327.602.402.202.605.008X18183A73439.003.802.402.606.4010X2012.2、圆形元件(标准类)贴片二极管封装实际尺寸:图12.9 贴片二极管封装实际尺寸表12.9 贴片二极管封装实际尺寸ComponentIdentifierMm(in)L(mm)S(mm)W(mm)T(mm)ComponenttypeminmaxminmaxminmaxminmaxSOD-80/
25、MLL343.303.702.202.651.601.700.410.55DiodeSOD-87/MLL414.805.203.804.252.442.540.360.50Diode2012(0805)1.902.101.161.441.351.450.230.370.10mw resistor3216(1206)3.003.401.862.311.751.850.430.570.25mw resistor3516(1406)3.303.702.162.611.551.650.430.570.12w resistor5923(2309)5.706.104.364.812.402.500.530
26、.670.25w resistor贴片二极管封装推荐尺寸:图12.10 贴片二极管封装推荐尺寸表12.10 贴片二极管封装推荐尺寸RLP No.ComponentIdentifierMm(in)Z(mm)G(mm)X(mm)Y(mm)C(mm)ABPlacementgridrefref200ASOD-80/MLL344.802.001.801.403.400.500.506X12201ASOD-87/MLL416.303.402.601.454.850.500.506X14202A2012(0805)3.200.601.601.301.900.500.354X8203A3216(1206)4.
27、401.202.001.602.800.500.556X10204A3516(1406)4.802.001.801.403.400.500.556X12205A5923(2309)7.204.202.601.505.700.500.656X1812.3、小外形晶体管(SOT)及二极管(SOD)(标准类)SOT23封装实际尺寸:图12.11 SOT23封装实际尺寸表12.11 SOT23封装实际尺寸ComponentIdentifierL(mm)S(mm)W(mm)T(mm)H(mm)P(mm)minmaxminmaxminmaxminmaxmaxnomSOT232.302.601.101.47
28、0.360.460.450.601.100.95SOT23封装推荐尺寸:图12.12 SOT23封装推荐尺寸表12.12 SOT23封装推荐尺寸RLP No.ComponentidentifierZ(mm)G(mm)X(mm)Y(mm)C(mm)E(mm)PlacementGirdrefrefref210SOT233.600.801.001.402.200.958X8SOT89封装实际尺寸:图12.13 SOT89封装实际尺寸表12.13 SOT89封装实际尺寸ComponentIdentifierL(mm)T(mm)W1(mm)W2(mm)W3(mm)K(mm)H(mm)P(mm)minma
29、xminmaxminmaxminmaxminmaxminmaxmaxnomSOT893.944.250.891.200.360.480.440.561.621.832.602.851.601.50SOT89封装推荐尺寸:图12.14 SOT89封装推荐尺寸表12.14 SOT89封装推荐尺寸RLP No.ComponentIdentifierZ(mm)Y1(mm)X1(mm)X2(mm)X3(mm)Y2(mm)Y3(mm)E(mm)Placementgridminmaxminmaxrefrefnom215SOT895.401.400.800.801.001.802.002.404.601.50
30、12X10SOD123封装实际尺寸:图12.15 SOD123封装实际尺寸表12.15 SOD123封装实际尺寸ComponentIdentifierL(mm)S(mm)W1(mm)W2(mm)T(mm)HminmaxminmaxminmaxminmaxminmaxmaxSOD1233.553.852.352.930.450.651.401.700.250.601.35SMB5.215.592.173.311.962.213.303.940.761.522.41SOD123封装推荐尺寸:图12.16 SOD123封装推荐尺寸表12.16 SOD123封装推荐尺寸RLP No.Component
31、IdentifierZ(mm)G(mm)X(mm)Y(mm)C(mm)Placementgridrefref220ASOD1235.001.800.801.603.404X12221ASMB6.802.002.402.404.408X16SOT143封装实际尺寸:图12.17 SOT143封装实际尺寸表12.17 SOT143封装实际尺寸ComponentIdentifierL(mm)S(mm)W1(mm)W2(mm)T(mm)P1(mm)P2(mm)H(mm)minmaxminmaxminmaxminmaxminmaxnomnommaxSOT1432.102.641.001.690.370.
32、460.760.890.250.551.921.721.20SOT143封装推荐尺寸:图12.18 SOT143封装推荐尺寸表12.18 SOT143封装推荐尺寸RLP NO.ComponentIdentifierZ(mm)G(mm)X1(mm)X2(mm)CE1E2YPlacementgridminmaxrefnomnomref225SOT1433.600.801.001.001.202.201.901.701.408X8SOT223封装实际尺寸:图12.19 SOT223封装实际尺寸表12.19 SOT223封装实际尺寸ComponentIdentifierL(mm)S(mm)W1(mm)
33、W2(mm)T(mm)H(mm)P1(mm)P2(mm)minmaxminmaxminmaxminmaxminmaxmaxnomnomSOT2236.707.304.104.920.600.882.903.180.901.301.802.304.60SOT223封装推荐尺寸:图12. 20 SOT223封装推荐尺寸表12. 20 SOT223封装推荐尺寸RLP No.ComponentIdentifierZ(mm)G(mm)X1(mm)X2(mm)Y(mm)C(mm)E1(mm)E2(mm)Placementgridminmaxrefrefnomnom230SOT2238.404.001.20
34、3.403.602.206.202.304.6018X14特殊晶体管(DPAK):图12.21 特殊晶体管(DPAK)-1表12.21 特殊晶体管(DPAK)-1ComponentIdentifierLW1W2T1T2P1P2HminmaxminmaxminmaxminmaxminmaxbasicbasicMaxTS-003*9.3210.410.640.914.355.350.510.804.005.502.284.572.38TS-005*14.6015.880.510.916.226.862.292.798.009.002.545.084.83TO36818.7019.101.151.4
35、513.3013.602.402.7012.4012.705.4510.905.10图12.22 特殊晶体管(DPAK)-2表12.22 特殊晶体管(DPAK)-2RLP No.ComponentIdentifierZ(mm)Y1Y2X1X2CPlacementGridref235ATS-003*11.201.606.201.005.407.3024X16236TS-005*16.603.409.601.006.8010.1036X24237TO26819.803.4013.401.4013.6011.4042X3412.4、集成电路(IC)(标准类)所有对称IC都需增加1 pin标识。SOI
36、C系列封装实际尺寸:图12.23 SOIC系列封装实际尺寸表12.23 SOIC系列封装实际尺寸ComponentIdentifierJEDECL(mm)S(mm)W(mm)T(mm)A(mm)B(mm)H(mm)PminmaxminmaxminmaxminmaxminmaxminmaxminmaxnomSO8MS-012AA5.806.203.264.550.330.510.401.273.804.004.805.001.351.751.27SO8W-10.0010.657.468.850.330.510.401.277.407.605.055.452.352.651.27SO14MS-01
37、2AB5.806.203.264.550.330.510.401.273.804.008.558.751.351.751.27SO14W-10.0010.657.468.850.330.510.401.277.407.608.809.202.352.65SO16MS-012AC5.806.203.264.550.330.510.401.273.804.009.8010.001.351.751.27SO16WMS-013AA10.0010.657.468.850.330.510.401.277.407.6010.1010.502.352.651.27SO20WMS-013AC10.0010.657.468.850.330.510.401.277.407.6012.6013.00