Optical Communications · Semiconductor & Advanced Laser
Kovar Laser Package Housing with Selective Gold Plating
seal-face flatness plus zone-defined gold plating on a Kovar housing.
ExploreThe engineering story
From requirement to outcome
01Engineering requirement
Serpentine channel cold plate, contact-face flatness benchmark, welded closure, 100% leak check.
02Challenge
Weld distortion versus flatness — sequencing and fixturing had to control deformation.
03Manufacturing solution
Channel milling before welding, symmetric weld sequencing, post-weld face finishing and leak test.
04Inspection
Method: CMM + pressure leak test
Tolerance verified: ±0.005 mm flatness (contact face)
05Outcome
Flatness held at benchmark on contact faces; all plates passed leak test.
