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Mechanically bridged SMD interconnects for electronic devices

專利號(hào)
US11744020B2
公開日期
2023-08-29
申請(qǐng)人
Texas Instruments Incorporated(US TX Dallas)
發(fā)明人
Kyle Brent Norell; Claude Albert Fernandez; Charles Allen DeVries
IPC分類
H05K3/22; H05K1/18; H05K1/11; H05K3/28; H05K3/34
技術(shù)領(lǐng)域
smd,inductor,bridged,package,die,electronic,substrate,tie,sip,molded
地域: TX TX Dallas

摘要

An electronic device includes a package substrate, at least one integrated circuit (IC) die including a substrate having a semiconductor surface including circuitry electrically coupled to bond pads positioned onto contact pads on a top surface of a package substrate. At least one surface mount device (SMD) component including at least a first terminal and a second terminal is on the package substrate positioned lateral to the IC die. There is at least one SMD interconnect electrically connecting to at least one of the first terminal and the second terminal to the bond pads. The SMD interconnect includes a portion of a tie bar that extends to an outer edge of the electronic device.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

FIG. 2B depicts a portion of an example strip 250 of molded in-process electronic devices 290 each including the mechanically bridged SMD interconnects 100 shown in FIG. 1A with one mechanically bridged SMD interconnect 100 identified in this FIG., with each mechanically bridged SMD interconnect 100 being positioned over four adjacent molded electronic devices 290. The molded electronic devices 290 can implement an isolated DC-DC SIP power module including a transformer. Each molded electronic device 290 includes a first semiconductor die 120a and a second semiconductor die 120b that are shown flipchip mounted onto the package substrate 205. The SMD component here is a transformer. Because the SMD component is a transformer there are 4 independent SMD interconnects that will be provided after singulation for each of the electronic devices 290, shown as 210a, 210b, 210c, and 210d, instead of only 2, such as for the mounting of a inductor.

FIG. 3 shows an example in-process SIP 300 in a power module implementation after singulation including an SMD component shown as being an inductor comprising an inductor body 132, and an inductor terminations 138. The internal winding of the inductor is generally pre-molded within the inductor body 132 is typically applied by an inductor supplier, and received as shown with exposed inductor terminations 138 on both sides, for the final connection to the SMD interconnects 305 and 310.

權(quán)利要求

1
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