Fabrication Drawings for Semiconductor

DCR No.: 02015
Revision No.: 3

Effective: 12-4-95
Supersedes: 4-22-99
Revision Date: 6-26-03
Page No.: 1 of 3

1

Purpose

1.1 To establish a standard format for documenting the configuration of pipe,
fittings, valves, and the location of welds.

2

Scope

2.1 This procedure applies to all piping, whether prefabricated or installed in
the field.

3

Responsibility

3.1 The Therma general foreperson or Detail Manager shall assign a lead
fabrication detailer (FD). The FD shall be responsible for performing the
following procedures.

3.2 The FD shall train and manage all other detailers to guarantee
conformance to this procedure.

4

Procedures

4.1 Review project specification sheet for specification guidelines.

4.2 Obtain a completed copy of the approved plan/coordination drawings,
P&ID’s and submittals.

4.3 Follow Therma’s drafting symbols set, create a fabrication drawing for
every semiconductor title block, FN 5.003.1.

4.4 The fabrication drawing shall include the following items:

4.4.1 Fitting and valve orientation.

4.4.2 Slope arrows and pitch (if applicable).

4.4.3 Pipe lengths/center lines and dimensional notes.

4.4.4 Line designation.

4.4.5 Valves with orientation noted.

4.5 Record the following data in the pre-fab planner section of the title block.

4.5.1 Material Selection

4.5.2 Schedule or Gage

4.5.3 Material Grade

4.5.4 Require Weld Log or Not

4.5.5 Drawing Number

4.5.5.1 The drawing number shall be alphanumeric in the following
sequence: System - Line number - Sequential Sheet
Number.

4.5.5.2 Example: N2-302-15 denotes a fabrication drawing that
details a nitrogen system, line number 302 (as identified on
the P&ID), and that is ^the 15 drawing made for this line.

4.5.6 Project Name

4.5.7 Job Number

4.5.8 Ordered by and Nextel number

4.5.9 Date ordered, date needed, date completed, and date shipped.

4.5.10 Revision Number

4.5.11 List all materials in bill of materials block in the title block.

5

Review and Approval

5.1 When the drawing is complete, submit the pre-fab planner to general
foreperson for review.

Document Approval

Detail Manager
6-26- Date

Quality Control Manager
6.9.03

Field Operation Manager
6-10 Date

Quality Assurance Manager
6-2 Date