CQFP - Ceramic Quad Flat Pack

   

The Ceramic Quad Flat Pack, or CQFP, is a ceramic IC package with leads extending from all four sides of the package body. CQFP's are predominantly square in shape, although rectangular variants do exist. The CQFP is just one of the many types of the quad flat pack (QFP) package.

 

The CQFP comes in many body sizes, with lead counts typically ranging from 28 to 352. Lead pitch values used by CQFP's range from 0.5 mm to 1.27 mm. Typical CQFP body thickness varies from 1.27 mm to 4 mm.

   

Table 1. Properties of some CQFP's

No. of Pins

Body Size  

Body Thickness

(incl. heat slug) 

Lead Pitch 

24

10.16  mm x 10.16 mm

1.78 mm

1.27 mm

48

11.5 mm x 11.5 mm

2.64 mm

0.635 mm

184

31 mm x 31 mm

3.5 mm

0.65 mm

240

32 mm x 32 mm

3.25 mm

0.50 mm

308

76.2 mm x 76.2 mm

3.80 mm

0.635 mm

                        

Figure 1.  Example of a CQFP

   

See more IC Package Types

 

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