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SEMI F81-1103 © SEMI 2003 6 (a) Undercut (b) Center line shrinkage (c) ID concavity Figure 1 Rejectable Profile Defects

SEMI F81-1103 © SEMI 2003 5

8.2 Examples of acceptable tools, magnification, and

illumination include, but are not limited to, the

following:

8.2.1 Tools — sight pipe; rigid borescope; calipers; v-

blocks; dial indicators; comparators

8.2.2 Magnification — magnifying glass; optical

microscope (2 to 40×)

8.2.3 Illumination — flashlight; bright fluorescent

light; natural (ambient) light; white paper (for

background illumination)

8.3 All tools shall be used without damaging or

contaminating the wetted surface of production

weldments. Tools may touch the wetted surface of

coupons.

9 Certification

9.1 Upon request of the purchaser in the contract or

order, a manufacturer' s or supplier' s certification that

the product was manufactured and tested in accordance

with this specification, together with a report of the test

results, shall be furnished at the time of shipment.

9.2 If desired, the supplier and purchaser may agree

that the product shall be certified as “capable of

meeting” certain requirements. In this context,

“capable of meeting” shall signify that the supplier is

not required to perform the appropriate tests. However,

if the purchaser performs the test(s) and the product

fails to meet the requirement(s), the product may be

subject to rejection.

(a) Undercut

(b) Center line shrinkage

Figure 1

Rejectable Profile Defects

(a) OD concavity

(b) OD convexity

Figure 2

OD Concavity and OD Convexity