{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9653101","patent":{"patent_number":"US-9653101","title":"Perpendicular magnetic recording (PMR) write head with hybrid side shield","assignee":null,"inventors":[],"filing_date":"2016-10-03T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":28,"abstract":"A perpendicular magnetic recording (PMR) writer is disclosed wherein a hybrid side shield (hSS) has an inner 15-24 kG hot seed layer formed between a gap layer and an outer hSS layer to improve tracks per inch capability while maintaining acceptable adjacent track interference (ATI). The outer hSS layer has a magnetization saturation (Ms) value from 10-19 kG and less than that of the inner hot seed layer. The inner hot seed layer has a far side that is 100 to 500 nm from a center of the main pole and may be coplanar with the sidewalls of an overlying write gap and 19-24 kG trailing shield layer. As a result, the side shield return field is substantially improved over a full side shield made of 12-16 kG material. Meanwhile, the trailing shield return field is substantially the same to enable better area density capability (ADC)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Perpendicular magnetic recording (PMR) write head with hybrid side shield","description":"A perpendicular magnetic recording (PMR) writer is disclosed wherein a hybrid side shield (hSS) has an inner 15-24 kG hot seed layer formed between a gap layer and an outer hSS layer to improve tracks","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9653101","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9653101","citation_suggestion":"Patentable. \"Perpendicular magnetic recording (PMR) write head with hybrid side shield\" (US-9653101). https://patentable.app/patents/US-9653101","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9653101","json":"https://patentable.app/api/llm-context/US-9653101","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:52:25.580Z"}