产品技术

封装品种

QFP-LQFP Series

LQFP Series

 

          

Production Overview

Plastic Low thickness Qual Flat packaging (LQFP) is a principal package using SMD technology. It is widely used in low cost and manual applications. NFME offers LQFP (the package body thickness is 1.40mm )

with lead counts range from 32 to 256 leads.

 

Application

Low thickness Quad Flat packages are considered one of the most established industry standard packages. LQFP is commonly used in memory, video ASIC, DSP, controllers, processors, gate arrays , SRAMs and PC chip sets, telecom, office equipment, disc drives and communication boards.etc

Features

* JEDEC standard compliant or reference
* Wide choice of pad sizes to meet die size per customer lead frame design capability
* Pb-free process ready and Green Molding Compound

 

Design Rule

Minimum Ink Size: 20mil (500 um) diameter or non-ink with wafer mapping

Maximum Ink Height: 1mil(25um)

Minimum Sawing street width: 3.2mil (80um)

Wafer Thickness: Back grinding is required if the thickness exceeds NFME spec.

 

Pkg type

Pkg size

Wafer thickness

LQFP

All

8~10 mil (200~250 um)

 

Wire Bond Rule

Wire size

Min. bond pad pitch

Min. bond pad opening

Wire loop control

 

50um (2.0mil)

200 um

150 um

Max. wire length
loop height

5000um
<300um

38um (1.5mil)

170 um

100 um

Max. wire length
loop height

5000um
<300um

33 um (1.3mil)

150 um

90 um

Max. wire length
loop height

5000um
<300um

30 um (1.2mil)

150 um

90 um

Max. wire length
loop height

5000um
<300um

25um (1.0mil)

70 um

60 um

Max. wire length
loop height

5000um
<300um

23um (0.9mil)

60 um

 50 um

Max. wire length
loop height

3000um
<300um

20 um (0.8mil)

60 um

50 um

Max. wire length
loop height

3000um
<300um

Package Outline

 

DIP/SkDIP/SDIP/HDIP (All units are in mm)

PKG TYPE

Body Size

Lead count

Material

Lead Pitch

Lead Length

BD

POD

LQFP

7*7

32

Cu

0.80

0.60

DOWN

DOWN

LQFP

7*7

48

Cu

0.50

0.60

DOWN

DOWN

LQFP

7*7

64

Cu

0.40

0.60

DOWN

DOWN

LQFP

10*10

44

Cu

0.80

0.60

DOWN

DOWN

LQFP

10*10

44

Cu

0.80

1.00

DOWN

DOWN

LQFP

10*10

52

Cu

0.65

0.60

DOWN

DOWN

LQFP

10*10

64

Cu

0.50

0.60

DOWN

DOWN

LQFP

10*10

80

Cu

0.40

0.60

DOWN

DOWN

LQFP

12*12

64

Cu

0.65

0.60

DOWN

DOWN

LQFP

12*12

80

Cu

0.50

0.60

DOWN

DOWN

HLQFP

12*12

80

Cu

0.50

0.60

DOWN

DOWN

LQFP

14*14

52

Cu

1.00

0.60

DOWN

DOWN

LQFP

14*14

52

Cu

1.00

0.85

DOWN

DOWN

LQFP

14*14

64

Cu

0.80

0.60

DOWN

DOWN

LQFP

14*14

64

Cu

0.80

0.85

DOWN

DOWN

LQFP

14*14

80

Cu

0.65

0.60

DOWN

DOWN

LQFP

14*14

100

Cu

0.50

0.60

DOWN

DOWN

LQFP

14*14

128

Cu

0.40

0.60

DOWN

DOWN

HLQFP

14*14

128

Cu

0.40

0.60

DOWN

DOWN

LQFP

16*16

120

Cu

0.50

0.50

DOWN

DOWN

LQFP

16*16

144

Cu

0.40

0.50

DOWN

DOWN

HLQFP

16*16

144

Cu

0.40

0.50

DOWN

DOWN

LQFP

20*20

144

Cu

0.50

0.60

DOWN

DOWN

LQFP

20*20

176

Cu

0.40

0.60

DOWN

DOWN

HLQFP

20*20

176

Cu

0.40

0.60

DOWN

DOWN

LQFP

24*24

216

Cu

0.40

0.60

DOWN

DOWN

HLQFP

24*24

216

Cu

0.40

0.60

DOWN

DOWN

LQFP

28*28

208

Cu

0.50

0.60

DOWN

DOWN

HLQFP

28*28

256

Cu

0.40

0.60

DOWN

DOWN

 

Packing & Shipping

 

LQFP (Tray)

PKG TYPE

Body Size(mm)

QTY/Tray

Tray/Inner Box

LQFP

7*7

250

10+1(bank)

LQFP

10*10

160

10+1(bank)

LQFP

12*12

119

10+1(bank)

LQFP

14*14

90

10+1(bank)

LQFP

16*16

84

10+1(bank)

LQFP

20*20

60

10+1(bank)

LQFP

24*24

40

10+1(bank)

LQFP

28*28

36

10+1(bank)