Table 2 Radiopurity results from survey of commercially available coverlay materials, including results from previous measurements in the literature [3]. The second column indicates the polyimide (PI) thickness and the third column the adhesive thickness. The materials in the last two rows are adhesives only

Taiflex FHK1025

1

1

Epoxy adhesive

18,000 ± 2000

1600 ± 140

ShinEtsu CA 333 [3]

1

1

5179 ± 424

<242

ShinEtsu CA 335 [3]

1

1.4

12,020 ± 390

9370 ± 340

Dupont LF0110

1

1

Acrylic adhesive

314 ± 13

49 ± 8

4000 ± 2000

Upilex C120

2

1

30 ± 2

280 ± 20

21,300 ± 300

MCL Plus 110

1

1

78 ± 4

45 ± 7

5030 ± 140

Dupont FR 70001 [3]

0.5

0.5

<1065

<473

Dupont FR 0110 [3]

1

1

<818

<273

Dupont LF0100

0

1

LF0110 adhesive

16 ± 4

39 ± 11

Imitex MI-100

0

1

Adhesive

9 ± 5

<14