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Semiconductor package with solder standoff

專(zhuān)利號(hào)
US11177197B2
公開(kāi)日期
2021-11-16
申請(qǐng)人
Texas Instruments Incorporated(US TX Dallas)
發(fā)明人
Jonathan Almeria Noquil; Satyendra Singh Chauhan; Lance Cole Wright; Osvaldo Jorge Lopez
IPC分類(lèi)
H01L23/495; H01L23/00; H01L25/07; H01L25/00; H01L25/16; H01L21/56; H01L23/31
技術(shù)領(lǐng)域
die,fet,solder,clip,standoff,standoffs,vertical,protruding,package,leadframe
地域: TX TX Dallas

摘要

A semiconductor package includes a leadframe including a die pad and a plurality of lead terminals. A vertical semiconductor device is attached on a first side by a die attach material to the die pad. A first clip is on the first vertical device that is solder connected to a terminal of the first vertical device on a second side opposite to the first side providing a first solder bonded interface, wherein the first clip is connected to at least a first of the lead terminals. The first solder bonded interface includes a first protruding surface standoff therein that extends from a surface on the second side of the first vertical device to physically contact the first clip.

說(shuō)明書(shū)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

FIG. 5A is a top perspective view without the mold compound shown of an 8-pin semiconductor clip package 500 having only a single die 510 (e.g., comprising silicon) including both a first vertical FET 130a and a second vertical FET 140a positioned lateral to one another, where the die 510 is flipchip attached to the leadframe 110. The gate G and source S terminals for each of the vertical FETs 130a, 140a are also identified in FIG. 5A for explanation purposes even though they would not be visible because they would be facing downward due to the flipchip arrangement. The first vertical FET 130a and the second vertical FET 140a have their back side which is a common drain facing up coupled by a clip shown as 507 (see the clip 507 in the cross section view in FIG. 5B described below) which is a common drain clip, that is shown coupled to lead terminals 2 and 3 of the leadframe 110. There are disclosed protruding surface standoffs 152, 151 on both the die's 510 top side and back side, with the protruding surface standoffs 152 only being shown in FIG. 5A. (But see the protruding surface standoffs 151 and 152 shown in FIG. 5B and FIG. 5C described below).

權(quán)利要求

1
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