Use the tolerances and specifications listed below as general engineering guidelines. But please note: we have the capability to yield significantly tighter tolerances based upon your requirements and/or the demands of specific applications. Our coordinate measuring system has resolution capability to within 1 micron repeatability and to within 6 microns X-Y linear accuracy. Unless otherwise noted on your specifications, our standard tolerances (shown below) will be applied.

Minimum distance between laser machined features or singulated edges: Greater than or equal to ceramic thickness when measured from the most narrow distance between features.

Average scribe depth and laser pulse spacing: per table below

Internal machined or scribed feature to internal feature: tolerance ± 0.001”, non-cumulative.

Overall length and width tolerance for cut edges: ± 0.002”

Length and width tolerance for singulated edges:

Singulated edge to internal feature: tolerance +0.003/-0.002” (Figure 1)

Hole diameter: ±0.002” for Exit Diameter (Figure 3)

Hole taper: tolerance 10% of substrate thickness, 0.005” maximum (Figure 3)

As-fired edge to internal feature, mechanically aligned: tolerance ±0.010”

As-fired edge to internal feature, optically aligned: tolerance ±0.005”

Optically determined feature to internal feature, optically aligned: tolerance ±0.002”

Slag height: 0.001” maximum above ceramic surface when measured with a micrometer.

Thickness, non-lapped: ±10% of standard manufacturer’s thicknesses.

Thickness, lapped: per lapping purchase order specifications.

Surface finish, non-polished: per table below.

Surface finish, polished: per polishing purchase order specifications.

Camber, as fired:

Figure 1. Lasered ceramic substrate:

(a) Typical view

(b) Singulated edge and feature tolerance

Figure 2. Typical laser scribed line:

(a) Top View ["A" Face of Substrate]

(b) Cross Section

Figure 3. Typical laser drilled features (cross section)