CN103824832B - 一种多mosfet集成六桥臂封装模块 - Google Patents
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Abstract
一种多MOSFET集成六桥臂封装模块,属于半导体封装技术领域。其特征在于多MOSFET晶片在敷铜基板上封装成六个桥臂,集成为三相全桥电机驱动模块,一组MOSFET的源极与另一组MOSFET的漏极连接时共用一块敷铜,相同输出引线的两个MOSFET共用一片敷铜。上述一种多MOSFET集成六桥臂封装模块,通过合理排布MOSFET管芯在敷铜基板上的布局,大大减小敷铜基板的使用面积,使得整个开关元件体积大大缩小,降低成本;通过设计新型封装方法减少了热量的中间传导层,使得散热效率有了很大提高,进而提高控制器的可靠性。
Description
技术领域
本发明属于半导体封装技术领域,具体为一种多MOSFET集成六桥臂封装模块。
背景技术
多MOSFET集成封装模块最主要是在直接敷铜基板(DBC)上布局MOSFET芯片、二极管芯片、功率端子。在对这种模块中的整体结构进行设计时,要考虑热设计、结构应力设计、EMC 设计和电路结构设计,此还同时要考虑设计产品的生产成本。现有的多MOSFET集成封装模块设计中存在的主要问题是产品的可靠性低、生产工艺复杂,生产成本高。
发明内容
针对现有技术中存在的上述问题,本发明的目的在于设计提供一种多MOSFET集成六桥臂封装模块的技术方案,结合MOSFET晶元的三相、正负、空间结构、电流强度、散热等方面综合考虑,其合理布线,减少铝键合线的使用,增强并联晶元的开断一致性,缩小整个功率器件体积。
所述的一种多MOSFET集成六桥臂封装模块, 其特征在于多MOSFET晶片在敷铜基板上封装成六个桥臂,集成为三相全桥电机驱动模块,一组MOSFET的源极与另一组MOSFET的漏极连接时共用一块敷铜,相同输出引线的两个MOSFET共用一片敷铜。
所述的一种多MOSFET集成六桥臂封装模块,其特征在于每组MOSFET的栅极引出敷铜线设置成衣架形状,且在栅极引出敷铜线中间设置焊接点。
所述的一种多MOSFET集成六桥臂封装模块,其特征在于敷铜基板上设置一组测温组件。
所述的一种多MOSFET集成六桥臂封装模块,其特征在于每组MOSFET中设置一组并联的电阻。
上述一种多MOSFET集成六桥臂封装模块,通过合理排布MOSFET管芯在敷铜基板上的布局,大大减小敷铜基板的使用面积,使得整个开关元件体积大大缩小,降低成本;通过设计新型封装方法减少了热量的中间传导层,使得散热效率有了很大提高,进而提高控制器的可靠性。
附图说明
图1 为本发明的结构示意图;
图2为本发明的电路原理图;
图中:1-MOSFET的漏极、2-MOSFET的栅极、3-焊接点、4-敷铜基板、5-电阻、6-MOSFET的源极、7-测温组件。
具体实施方式
以下结合说明书附图对本发明作进一步说明。
如图1所示,多MOSFET晶片在敷铜基板4上封装成六个桥臂,集成为三相全桥电机驱动模块。本发明在敷铜基板4进行刻蚀时,根据电机驱动的使用场合进行设计,一组MOSFET的源极6与另一组MOSFET的漏极1连接时共用一块敷铜,相同输出引线的两个MOSFET共用一片敷铜,减小敷铜使用面积,缩小体积,降低成本。每组MOSFET的栅极2引出敷铜线设置成衣架形状,且在栅极引出敷铜线中间设置焊接点3,减小布线的电感影响,使得每组内MOSFET的开通关断时刻尽量一致,减小MOSFET的发热量,进而提高控制器的可靠性。敷铜基板4上根据发热区域合理布局了多个测温组件7。每组MOSFET中设置一组并联的电阻5。
如图2所示,MOSFET Q1、MOSFET Q2、MOSFET Q3、MOSFET
Q4、MOSFET Q5的2脚连接在一起,并且与电源正极相连,MOSFET Q1、MOSFET Q2、MOSFET
Q3、MOSFET Q4、MOSFET Q5的3脚连接在一起,并与电机U相相连,MOSFET
Q1的1脚与电阻R1相连,MOSFET Q2的1脚与电阻R2相连,MOSFET Q3的1脚与电阻R3相连,MOSFET Q4的1脚与电阻R4相连,MOSFET Q5的1脚与电阻R5相连,电阻R1,R2,R3,R4,R5的另一端连接在一起,并与U相上臂驱动相连。MOSFET Q16、MOSFET Q17、MOSFET Q18、MOSFET Q19、MOSFET Q20的2脚连接在一起,并且与电机U相相连,MOSFET Q16、MOSFET
Q17、MOSFET Q18、MOSFET Q19、MOSFET Q20的3脚连接在一起,并与电源负极相连,MOSFET Q16的1脚与电阻R16相连,MOSFET Q17的1脚与电阻R17相连,MOSFET Q18的1脚与电阻R18相连,MOSFET Q19的1脚与电阻R19相连,MOSFET Q20的1脚与电阻R20相连,电阻R16,R17,R18,R19,R20的另一端连接在一起,并与U相下臂驱动相连。
MOSFET Q6、MOSFET Q7、MOSFET
Q8、MOSFET Q9、MOSFET Q10的2脚连接在一起,并且与电源正极相连,MOSFET Q6、MOSFET Q7、MOSFET Q8、MOSFET
Q9、MOSFET Q10的3脚连接在一起,并与电机V相相连,MOSFET Q6的1脚与电阻R6相连,MOSFET Q7的1脚与电阻R7相连,MOSFET Q8的1脚与电阻R8相连,MOSFET Q9的1脚与电阻R9相连,MOSFET Q10的1脚与电阻R10相连,电阻R6,R7,R8,R9,R10的另一端连接在一起,并与V相上臂驱动相连。
MOSFET Q21、MOSFET Q22、MOSFET Q23、MOSFET Q24、MOSFET Q25的2脚连接在一起,并且与电机V相相连,MOSFET Q21、MOSFET
Q22、MOSFET Q23、MOSFET Q24、MOSFET Q25的3脚连接在一起,并与电源负极相连,MOSFET Q21的1脚与电阻R21相连,MOSFET Q22的1脚与电阻R22相连,MOSFET Q23的1脚与电阻R23相连,MOSFET Q24的1脚与电阻R24相连,MOSFET Q25的1脚与电阻R25相连,电阻R21,R22,R23,R24,R25的另一端连接在一起,并与V相下臂驱动相连。
MOSFET Q11、MOSFET Q12、MOSFET Q13、MOSFET Q14、MOSFET Q15的2脚连接在一起,并且与电源正极相连,MOSFET Q11、MOSFET Q12、MOSFET Q13、MOSFET Q14、MOSFET Q15的3脚连接在一起,并与电机W相相连,MOSFET Q11的1脚与电阻R11相连,MOSFET Q12的1脚与电阻R12相连,MOSFET Q13的1脚与电阻R13相连,MOSFET Q14的1脚与电阻R14相连,MOSFET Q15的1脚与电阻R15相连,电阻R11,R12,R13,R14,R15的另一端连接在一起,并与W相上臂驱动相连。
MOSFET
Q26、MOSFET
Q27、MOSFET Q28、MOSFET Q29、MOSFET Q30的2脚连接在一起,并且与电机W相相连,MOSFET Q26、MOSFET
Q27、MOSFET Q28、MOSFET Q29、MOSFET Q30的3脚连接在一起,并与电源负极相连,MOSFET Q26的1脚与电阻R26相连,MOSFET Q27的1脚与电阻R27相连,MOSFET Q28的1脚与电阻R28相连,MOSFET Q29的1脚与电阻R29相连,MOSFET Q30的1脚与电阻R30相连,电阻R26,R27,R28,R29,R30的另一端连接在一起,并与W相下臂驱动相连。
Claims (1)
1.一种多MOSFET集成六桥臂封装模块, 其特征在于多MOSFET晶片在敷铜基板(4)上封装成六个桥臂,集成为三相全桥电机驱动模块,一组MOSFET的源极(6)与另一组MOSFET的漏极(1)连接时共用一块敷铜,相同输出引线的两个MOSFET共用一片敷铜,每组MOSFET的栅极(2)引出敷铜线设置成衣架形状,且在栅极引出敷铜线中间设置焊接点(3),敷铜基板(4)上设置一组测温组件(7),每组MOSFET中设置一组并联的电阻(5);
MOSFET Q1、MOSFET Q2、MOSFET Q3、MOSFET Q4、MOSFET Q5的2脚连接在一起,并且与电源正极相连,MOSFET Q1、MOSFET Q2、MOSFET Q3、MOSFET Q4、MOSFET Q5的3脚连接在一起,并与电机U相相连,MOSFET Q1的1脚与电阻R1相连,MOSFET Q2的1脚与电阻R2相连,MOSFET Q3的1脚与电阻R3相连,MOSFET Q4的1脚与电阻R4相连,MOSFET Q5的1脚与电阻R5相连,电阻R1,R2,R3,R4,R5的另一端连接在一起,并与U相上臂驱动相连;MOSFET
Q16、MOSFET Q17、MOSFET Q18、MOSFET Q19、MOSFET Q20的2脚连接在一起,并且与电机U相相连,MOSFET Q16、MOSFET Q17、MOSFET Q18、MOSFET Q19、MOSFET Q20的3脚连接在一起,并与电源负极相连,MOSFET Q16的1脚与电阻R16相连,MOSFET Q17的1脚与电阻R17相连,MOSFET Q18的1脚与电阻R18相连,MOSFET Q19的1脚与电阻R19相连,MOSFET Q20的1脚与电阻R20相连,电阻R16,R17,R18,R19,R20的另一端连接在一起,并与U相下臂驱动相连;
MOSFET Q6、MOSFET Q7、MOSFET Q8、MOSFET Q9、MOSFET Q10的2脚连接在一起,并且与电源正极相连,MOSFET Q6、MOSFET Q7、MOSFET Q8、MOSFET Q9、MOSFET Q10的3脚连接在一起,并与电机V相相连,MOSFET Q6的1脚与电阻R6相连,MOSFET Q7的1脚与电阻R7相连,MOSFET Q8的1脚与电阻R8相连,MOSFET Q9的1脚与电阻R9相连,MOSFET Q10的1脚与电阻R10相连,电阻R6,R7,R8,R9,R10的另一端连接在一起,并与V相上臂驱动相连;
MOSFET Q21、MOSFET Q22、MOSFET Q23、MOSFET Q24、MOSFET Q25的2脚连接在一起,并且与电机V相相连,MOSFET Q21、MOSFET Q22、MOSFET Q23、MOSFET Q24、MOSFET Q25的3脚连接在一起,并与电源负极相连,MOSFET Q21的1脚与电阻R21相连,MOSFET Q22的1脚与电阻R22相连,MOSFET Q23的1脚与电阻R23相连,MOSFET Q24的1脚与电阻R24相连,MOSFET Q25的1脚与电阻R25相连,电阻R21,R22,R23,R24,R25的另一端连接在一起,并与V相下臂驱动相连;
MOSFET Q11、MOSFET Q12、MOSFET Q13、MOSFET Q14、MOSFET Q15的2脚连接在一起,并且与电源正极相连,MOSFET Q11、MOSFET Q12、MOSFET Q13、MOSFET Q14、MOSFET Q15的3脚连接在一起,并与电机W相相连,MOSFET Q11的1脚与电阻R11相连,MOSFET Q12的1脚与电阻R12相连,MOSFET Q13的1脚与电阻R13相连,MOSFET Q14的1脚与电阻R14相连,MOSFET Q15的1脚与电阻R15相连,电阻R11,R12,R13,R14,R15的另一端连接在一起,并与W相上臂驱动相连;
MOSFET Q26、MOSFET Q27、MOSFET Q28、MOSFET Q29、MOSFET Q30的2脚连接在一起,并且与电机W相相连,MOSFET Q26、MOSFET Q27、MOSFET Q28、MOSFET Q29、MOSFET Q30的3脚连接在一起,并与电源负极相连,MOSFET Q26的1脚与电阻R26相连,MOSFET Q27的1脚与电阻R27相连,MOSFET Q28的1脚与电阻R28相连,MOSFET Q29的1脚与电阻R29相连,MOSFET Q30的1脚与电阻R30相连,电阻R26,R27,R28,R29,R30的另一端连接在一起,并与W相下臂驱动相连。
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